./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:40:11,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:40:11,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:40:11,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:40:11,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:40:11,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:40:11,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:40:11,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:40:11,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:40:11,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:40:11,896 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:40:11,898 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:40:11,898 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:40:11,900 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:40:11,901 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:40:11,902 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:40:11,903 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:40:11,904 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:40:11,904 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:40:11,905 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:40:11,905 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:40:11,905 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:40:11,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:40:11,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:40:11,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:40:11,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:40:11,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:40:11,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:40:11,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:40:11,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:40:11,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:40:11,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:40:11,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:40:11,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:40:11,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:40:11,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:40:11,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:40:11,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:40:11,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:40:11,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:40:11,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:40:11,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:40:11,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:40:11,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:40:11,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:40:11,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:40:11,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:40:11,919 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2023-11-23 20:40:12,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:40:12,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:40:12,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:40:12,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:40:12,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:40:12,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-11-23 20:40:15,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:40:15,765 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:40:15,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-11-23 20:40:15,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/data/84c768bc8/9ab16f0c9d4e45669a165488d44718a7/FLAGa1793f306 [2023-11-23 20:40:15,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/data/84c768bc8/9ab16f0c9d4e45669a165488d44718a7 [2023-11-23 20:40:15,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:40:15,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:40:15,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:40:15,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:40:15,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:40:15,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:40:15" (1/1) ... [2023-11-23 20:40:15,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e51832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:15, skipping insertion in model container [2023-11-23 20:40:15,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:40:15" (1/1) ... [2023-11-23 20:40:15,907 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:40:16,099 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_ab56fdaa-951e-4909-b122-bda845648018/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2023-11-23 20:40:16,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:40:16,199 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:40:16,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-23 20:40:16,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2023-11-23 20:40:16,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] [2023-11-23 20:40:16,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] [2023-11-23 20:40:16,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] [2023-11-23 20:40:16,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] [2023-11-23 20:40:16,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] [2023-11-23 20:40:16,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] [2023-11-23 20:40:16,226 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_ab56fdaa-951e-4909-b122-bda845648018/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2023-11-23 20:40:16,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:40:16,297 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:40:16,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16 WrapperNode [2023-11-23 20:40:16,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:40:16,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:40:16,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:40:16,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:40:16,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,351 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 204 [2023-11-23 20:40:16,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:40:16,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:40:16,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:40:16,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:40:16,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:40:16,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:40:16,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:40:16,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:40:16,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:40:16,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:40:16,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:40:16,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:40:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:40:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 20:40:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 20:40:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 20:40:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 20:40:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 20:40:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 20:40:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 20:40:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 20:40:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 20:40:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 20:40:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 20:40:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 20:40:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 20:40:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 20:40:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:40:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 20:40:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 20:40:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:40:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:40:16,558 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:40:16,561 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:40:16,866 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:40:17,067 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:40:17,067 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:40:17,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17 BoogieIcfgContainer [2023-11-23 20:40:17,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:40:17,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:40:17,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:40:17,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:40:17,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:40:15" (1/3) ... [2023-11-23 20:40:17,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b4c8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:40:17, skipping insertion in model container [2023-11-23 20:40:17,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (2/3) ... [2023-11-23 20:40:17,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b4c8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:40:17, skipping insertion in model container [2023-11-23 20:40:17,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17" (3/3) ... [2023-11-23 20:40:17,080 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2023-11-23 20:40:17,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:40:17,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:40:17,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:40:17,175 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=FINITE_AUTOMATA, 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;@1c3156ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:40:17,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:40:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:40:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:40:17,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:17,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1295381389, now seen corresponding path program 1 times [2023-11-23 20:40:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245461716] [2023-11-23 20:40:17,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:17,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:17,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245461716] [2023-11-23 20:40:17,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245461716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:17,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:17,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:40:17,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876094420] [2023-11-23 20:40:17,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:17,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:40:17,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:17,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:40:17,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:40:17,497 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2023-11-23 20:40:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:17,576 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2023-11-23 20:40:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:40:17,579 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 [2023-11-23 20:40:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:17,590 INFO L225 Difference]: With dead ends: 130 [2023-11-23 20:40:17,590 INFO L226 Difference]: Without dead ends: 61 [2023-11-23 20:40:17,595 INFO L412 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 [2023-11-23 20:40:17,599 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:17,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:40:17,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-23 20:40:17,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-23 20:40:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 20:40:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2023-11-23 20:40:17,659 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2023-11-23 20:40:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:17,660 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2023-11-23 20:40:17,661 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) [2023-11-23 20:40:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2023-11-23 20:40:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:40:17,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:17,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:40:17,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1972962786, now seen corresponding path program 1 times [2023-11-23 20:40:17,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146511831] [2023-11-23 20:40:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:17,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146511831] [2023-11-23 20:40:17,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146511831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:17,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:17,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:17,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364020471] [2023-11-23 20:40:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:17,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:17,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:17,877 INFO L87 Difference]: Start difference. First operand 61 states and 80 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) [2023-11-23 20:40:17,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:17,930 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-11-23 20:40:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:17,931 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 [2023-11-23 20:40:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:17,933 INFO L225 Difference]: With dead ends: 94 [2023-11-23 20:40:17,933 INFO L226 Difference]: Without dead ends: 53 [2023-11-23 20:40:17,934 INFO L412 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 [2023-11-23 20:40:17,935 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:17,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:40:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-23 20:40:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-23 20:40:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:40:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2023-11-23 20:40:17,963 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2023-11-23 20:40:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:17,964 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2023-11-23 20:40:17,964 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) [2023-11-23 20:40:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2023-11-23 20:40:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:40:17,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,967 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] [2023-11-23 20:40:17,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:40:17,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,971 INFO L85 PathProgramCache]: Analyzing trace with hash 596411968, now seen corresponding path program 1 times [2023-11-23 20:40:17,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899179319] [2023-11-23 20:40:17,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:18,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899179319] [2023-11-23 20:40:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899179319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:18,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:18,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524437073] [2023-11-23 20:40:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:18,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:18,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:18,109 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-23 20:40:18,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:18,205 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2023-11-23 20:40:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2023-11-23 20:40:18,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:18,212 INFO L225 Difference]: With dead ends: 155 [2023-11-23 20:40:18,212 INFO L226 Difference]: Without dead ends: 104 [2023-11-23 20:40:18,213 INFO L412 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 [2023-11-23 20:40:18,214 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 63 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:18,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 114 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:40:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-23 20:40:18,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2023-11-23 20:40:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 20:40:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2023-11-23 20:40:18,255 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2023-11-23 20:40:18,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:18,256 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2023-11-23 20:40:18,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-23 20:40:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2023-11-23 20:40:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:40:18,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:18,269 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] [2023-11-23 20:40:18,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:40:18,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:18,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1214559317, now seen corresponding path program 1 times [2023-11-23 20:40:18,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069145870] [2023-11-23 20:40:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:18,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:18,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:18,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069145870] [2023-11-23 20:40:18,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069145870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:18,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:18,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:40:18,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742975741] [2023-11-23 20:40:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:18,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:40:18,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:18,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:40:18,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:40:18,573 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-11-23 20:40:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:18,773 INFO L93 Difference]: Finished difference Result 365 states and 493 transitions. [2023-11-23 20:40:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:40:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 24 [2023-11-23 20:40:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:18,779 INFO L225 Difference]: With dead ends: 365 [2023-11-23 20:40:18,779 INFO L226 Difference]: Without dead ends: 266 [2023-11-23 20:40:18,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:40:18,783 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 83 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:18,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 250 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:40:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-23 20:40:18,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 253. [2023-11-23 20:40:18,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 193 states have internal predecessors, (225), 48 states have call successors, (48), 36 states have call predecessors, (48), 36 states have return successors, (56), 38 states have call predecessors, (56), 48 states have call successors, (56) [2023-11-23 20:40:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 329 transitions. [2023-11-23 20:40:18,825 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 329 transitions. Word has length 24 [2023-11-23 20:40:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:18,825 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 329 transitions. [2023-11-23 20:40:18,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-11-23 20:40:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 329 transitions. [2023-11-23 20:40:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:40:18,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:18,828 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] [2023-11-23 20:40:18,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:40:18,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:18,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:18,829 INFO L85 PathProgramCache]: Analyzing trace with hash 529136152, now seen corresponding path program 1 times [2023-11-23 20:40:18,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:18,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632075373] [2023-11-23 20:40:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:40:18,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:40:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:40:18,888 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:40:18,888 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:40:18,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:40:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:40:18,895 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-23 20:40:18,899 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:40:18,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-11-23 20:40:18,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:40:18 BoogieIcfgContainer [2023-11-23 20:40:18,948 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:40:18,949 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:40:18,949 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:40:18,950 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:40:18,950 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17" (3/4) ... [2023-11-23 20:40:18,951 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:40:18,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-11-23 20:40:19,058 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:40:19,059 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:40:19,060 INFO L158 Benchmark]: Toolchain (without parser) took 3239.20ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 122.4MB in the beginning and 81.0MB in the end (delta: 41.3MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,060 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 107.0MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:40:19,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.95ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 103.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.78ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,071 INFO L158 Benchmark]: Boogie Preprocessor took 33.85ms. Allocated memory is still 163.6MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,072 INFO L158 Benchmark]: RCFGBuilder took 682.86ms. Allocated memory is still 163.6MB. Free memory was 98.9MB in the beginning and 73.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,072 INFO L158 Benchmark]: TraceAbstraction took 1875.40ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 73.2MB in the beginning and 84.2MB in the end (delta: -10.9MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,073 INFO L158 Benchmark]: Witness Printer took 109.92ms. Allocated memory is still 207.6MB. Free memory was 84.2MB in the beginning and 81.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:40:19,076 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 107.0MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.95ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 103.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.78ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.85ms. Allocated memory is still 163.6MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.86ms. Allocated memory is still 163.6MB. Free memory was 98.9MB in the beginning and 73.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1875.40ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 73.2MB in the beginning and 84.2MB in the end (delta: -10.9MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Witness Printer took 109.92ms. Allocated memory is still 207.6MB. Free memory was 84.2MB in the beginning and 81.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] - GenericResultAtLocation [Line: 235]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] - GenericResultAtLocation [Line: 332]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 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: 231]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L548] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L560] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L560] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L566] tmp___0 = __VERIFIER_nondet_int() [L568] 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] [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND TRUE \read(tmp___1) [L588] CALL stopSystem() [L518] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] systemActive = 0 [L588] RET stopSystem() [L595] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L344] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L351] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND TRUE tmp___0 == 2 [L210] CALL, EXPR isPumpRunning() [L451] int retValue_acc ; [L454] retValue_acc = pumpRunning [L455] return (retValue_acc); [L210] RET, EXPR isPumpRunning() [L210] tmp___1 = isPumpRunning() [L212] COND FALSE !(\read(tmp___1)) [L216] CALL __automaton_fail() [L231] 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 521 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 250 mSDtfsCounter, 194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253occurred 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 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! [2023-11-23 20:40:19,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab56fdaa-951e-4909-b122-bda845648018/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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