./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 0e0057cc 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_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/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_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh --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 0.2.4-dev-0e0057c [2023-12-02 15:52:58,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:52:58,992 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:52:58,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:52:58,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:52:59,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:52:59,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:52:59,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:52:59,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:52:59,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:52:59,022 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:52:59,022 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:52:59,023 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:52:59,023 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:52:59,024 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:52:59,024 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:52:59,025 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:52:59,025 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:52:59,026 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:52:59,026 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:52:59,027 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:52:59,032 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:52:59,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:52:59,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:52:59,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:52:59,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:52:59,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:52:59,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:52:59,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:52:59,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:52:59,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:52:59,036 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:52:59,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:52:59,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:52:59,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:52:59,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:52:59,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:52:59,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:52:59,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:52:59,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:52:59,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:52:59,038 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:52:59,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:52:59,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:52:59,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:52:59,039 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:52:59,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:52:59,039 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_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2023-12-02 15:52:59,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:52:59,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:52:59,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:52:59,277 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:52:59,278 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:52:59,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-12-02 15:53:02,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:53:02,296 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:53:02,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-12-02 15:53:02,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/data/c8531e57a/8e74d33476634a21829c3003629cfff9/FLAG45a4d30c2 [2023-12-02 15:53:02,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/data/c8531e57a/8e74d33476634a21829c3003629cfff9 [2023-12-02 15:53:02,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:53:02,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:53:02,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:02,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:53:02,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:53:02,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d5728c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02, skipping insertion in model container [2023-12-02 15:53:02,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,383 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:53:02,538 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_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2023-12-02 15:53:02,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:02,623 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:53:02,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-02 15:53:02,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2023-12-02 15:53:02,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] [2023-12-02 15:53:02,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] [2023-12-02 15:53:02,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] [2023-12-02 15:53:02,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] [2023-12-02 15:53:02,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] [2023-12-02 15:53:02,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] [2023-12-02 15:53:02,645 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_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2023-12-02 15:53:02,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:02,704 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:53:02,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02 WrapperNode [2023-12-02 15:53:02,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:02,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:02,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:53:02,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:53:02,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,751 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 204 [2023-12-02 15:53:02,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:02,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:53:02,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:53:02,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:53:02,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:53:02,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:53:02,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:53:02,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:53:02,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (1/1) ... [2023-12-02 15:53:02,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:53:02,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:53:02,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:53:02,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:53:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:53:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 15:53:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 15:53:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 15:53:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 15:53:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 15:53:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 15:53:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 15:53:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 15:53:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 15:53:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 15:53:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 15:53:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 15:53:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 15:53:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 15:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 15:53:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 15:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:53:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:53:02,945 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:53:02,948 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:53:03,211 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:53:03,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:53:03,294 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 15:53:03,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:03 BoogieIcfgContainer [2023-12-02 15:53:03,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:53:03,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:53:03,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:53:03,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:53:03,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:53:02" (1/3) ... [2023-12-02 15:53:03,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650d5533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:03, skipping insertion in model container [2023-12-02 15:53:03,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:02" (2/3) ... [2023-12-02 15:53:03,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650d5533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:03, skipping insertion in model container [2023-12-02 15:53:03,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:03" (3/3) ... [2023-12-02 15:53:03,304 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2023-12-02 15:53:03,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:53:03,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:53:03,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:53:03,367 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;@181ea63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:53:03,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:53:03,371 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) [2023-12-02 15:53:03,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 15:53:03,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:03,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:03,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:03,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1295381389, now seen corresponding path program 1 times [2023-12-02 15:53:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:03,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57894025] [2023-12-02 15:53:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:53:03,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:53:03,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57894025] [2023-12-02 15:53:03,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57894025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:03,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:03,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:53:03,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568166911] [2023-12-02 15:53:03,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:53:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:53:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:53:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:53:03,570 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) [2023-12-02 15:53:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:03,633 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2023-12-02 15:53:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:53:03,635 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 [2023-12-02 15:53:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:03,643 INFO L225 Difference]: With dead ends: 130 [2023-12-02 15:53:03,643 INFO L226 Difference]: Without dead ends: 61 [2023-12-02 15:53:03,646 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 [2023-12-02 15:53:03,650 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 [2023-12-02 15:53:03,651 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] [2023-12-02 15:53:03,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-02 15:53:03,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-02 15:53:03,684 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) [2023-12-02 15:53:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2023-12-02 15:53:03,687 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2023-12-02 15:53:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:03,688 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2023-12-02 15:53:03,688 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) [2023-12-02 15:53:03,688 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2023-12-02 15:53:03,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 15:53:03,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:03,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:03,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:53:03,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:03,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1972962786, now seen corresponding path program 1 times [2023-12-02 15:53:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:03,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626674333] [2023-12-02 15:53:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:53:03,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:53:03,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626674333] [2023-12-02 15:53:03,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626674333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:03,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:53:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613079516] [2023-12-02 15:53:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:03,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:53:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:53:03,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:53:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:53:03,795 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) [2023-12-02 15:53:03,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:03,838 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-12-02 15:53:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:53:03,839 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 [2023-12-02 15:53:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:03,841 INFO L225 Difference]: With dead ends: 94 [2023-12-02 15:53:03,841 INFO L226 Difference]: Without dead ends: 53 [2023-12-02 15:53:03,842 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 [2023-12-02 15:53:03,844 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 [2023-12-02 15:53:03,844 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] [2023-12-02 15:53:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-02 15:53:03,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-12-02 15:53:03,853 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) [2023-12-02 15:53:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2023-12-02 15:53:03,855 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2023-12-02 15:53:03,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:03,856 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2023-12-02 15:53:03,856 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) [2023-12-02 15:53:03,856 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2023-12-02 15:53:03,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:53:03,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:03,858 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] [2023-12-02 15:53:03,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:53:03,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:03,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 596411968, now seen corresponding path program 1 times [2023-12-02 15:53:03,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:03,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413902936] [2023-12-02 15:53:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:53:03,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:53:03,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413902936] [2023-12-02 15:53:03,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413902936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:03,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:03,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:53:03,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149857169] [2023-12-02 15:53:03,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:03,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:53:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:53:03,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:53:03,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:53:03,961 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) [2023-12-02 15:53:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:04,029 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2023-12-02 15:53:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:53:04,030 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 [2023-12-02 15:53:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:04,032 INFO L225 Difference]: With dead ends: 155 [2023-12-02 15:53:04,033 INFO L226 Difference]: Without dead ends: 104 [2023-12-02 15:53:04,033 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 [2023-12-02 15:53:04,035 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:53:04,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 114 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:53:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-02 15:53:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2023-12-02 15:53:04,057 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) [2023-12-02 15:53:04,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2023-12-02 15:53:04,059 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2023-12-02 15:53:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:04,060 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2023-12-02 15:53:04,060 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) [2023-12-02 15:53:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2023-12-02 15:53:04,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 15:53:04,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:04,062 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] [2023-12-02 15:53:04,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:53:04,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:04,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:04,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1214559317, now seen corresponding path program 1 times [2023-12-02 15:53:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:04,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237959598] [2023-12-02 15:53:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:04,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:53:04,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:53:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237959598] [2023-12-02 15:53:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237959598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:04,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:04,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:53:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099964022] [2023-12-02 15:53:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:04,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:53:04,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:53:04,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:53:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:53:04,258 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) [2023-12-02 15:53:04,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:04,438 INFO L93 Difference]: Finished difference Result 365 states and 493 transitions. [2023-12-02 15:53:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:53:04,439 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 [2023-12-02 15:53:04,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:04,443 INFO L225 Difference]: With dead ends: 365 [2023-12-02 15:53:04,443 INFO L226 Difference]: Without dead ends: 266 [2023-12-02 15:53:04,445 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 [2023-12-02 15:53:04,447 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 [2023-12-02 15:53:04,447 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] [2023-12-02 15:53:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-02 15:53:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 253. [2023-12-02 15:53:04,489 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) [2023-12-02 15:53:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 329 transitions. [2023-12-02 15:53:04,493 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 329 transitions. Word has length 24 [2023-12-02 15:53:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:04,493 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 329 transitions. [2023-12-02 15:53:04,494 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) [2023-12-02 15:53:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 329 transitions. [2023-12-02 15:53:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 15:53:04,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:04,497 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] [2023-12-02 15:53:04,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:53:04,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:04,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash 529136152, now seen corresponding path program 1 times [2023-12-02 15:53:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:04,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707243556] [2023-12-02 15:53:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:53:04,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:53:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:53:04,551 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:53:04,551 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:53:04,552 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:53:04,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:53:04,556 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 15:53:04,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:53:04,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-12-02 15:53:04,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:53:04 BoogieIcfgContainer [2023-12-02 15:53:04,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:53:04,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:53:04,595 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:53:04,595 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:53:04,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:03" (3/4) ... [2023-12-02 15:53:04,596 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 15:53:04,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-12-02 15:53:04,644 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:53:04,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:53:04,645 INFO L158 Benchmark]: Toolchain (without parser) took 2317.04ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 64.3MB in the end (delta: 51.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,645 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:53:04,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.96ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 95.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.02ms. Allocated memory is still 159.4MB. Free memory was 95.9MB in the beginning and 93.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,646 INFO L158 Benchmark]: Boogie Preprocessor took 27.88ms. Allocated memory is still 159.4MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,647 INFO L158 Benchmark]: RCFGBuilder took 514.91ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 113.3MB in the end (delta: -21.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,647 INFO L158 Benchmark]: TraceAbstraction took 1296.06ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 68.5MB in the end (delta: 44.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,648 INFO L158 Benchmark]: Witness Printer took 49.40ms. Allocated memory is still 159.4MB. Free memory was 68.5MB in the beginning and 64.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:53:04,650 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.96ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 95.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.02ms. Allocated memory is still 159.4MB. Free memory was 95.9MB in the beginning and 93.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.88ms. Allocated memory is still 159.4MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.91ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 113.3MB in the end (delta: -21.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1296.06ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 68.5MB in the end (delta: 44.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Witness Printer took 49.40ms. Allocated memory is still 159.4MB. Free memory was 68.5MB in the beginning and 64.3MB in the end (delta: 4.2MB). 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,"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: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.2s 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, 0.4s 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! [2023-12-02 15:53:04,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2c9fd3-99c2-4543-981c-b7ac9cccf416/bin/utaipan-verify-nQ1chXbOIh/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