./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.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_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/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_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/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_110b3524-fa0f-4377-85aa-144ce0cbe63f/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 cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:06,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:06,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:22:06,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:06,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:06,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:06,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:06,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:06,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:06,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:06,936 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:06,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:06,937 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:06,938 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:22:06,938 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:06,939 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:06,939 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:22:06,940 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:22:06,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:06,941 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:22:06,942 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:22:06,943 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:22:06,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:06,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:06,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:06,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:22:06,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:06,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:06,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:06,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:06,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:06,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:06,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:06,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:06,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:06,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:06,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:06,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:06,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:06,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:06,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:06,949 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:22:06,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:22:06,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:06,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:06,950 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:06,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:06,951 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_110b3524-fa0f-4377-85aa-144ce0cbe63f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 [2023-12-02 12:22:07,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:07,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:07,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:07,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:07,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:07,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2023-12-02 12:22:10,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:10,509 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:10,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2023-12-02 12:22:10,528 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/data/01432469f/a5892677725c4c3fb0e1931ebfe75e76/FLAG226af9462 [2023-12-02 12:22:10,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/data/01432469f/a5892677725c4c3fb0e1931ebfe75e76 [2023-12-02 12:22:10,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:10,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:10,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:10,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:10,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:10,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2984ff80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10, skipping insertion in model container [2023-12-02 12:22:10,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:10,887 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_110b3524-fa0f-4377-85aa-144ce0cbe63f/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2023-12-02 12:22:10,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:10,930 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:10,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-12-02 12:22:10,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2023-12-02 12:22:10,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [603] [2023-12-02 12:22:10,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [612] [2023-12-02 12:22:10,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [680] [2023-12-02 12:22:10,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] [2023-12-02 12:22:10,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [869] [2023-12-02 12:22:10,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [903] [2023-12-02 12:22:11,000 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_110b3524-fa0f-4377-85aa-144ce0cbe63f/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2023-12-02 12:22:11,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:11,039 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:11,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11 WrapperNode [2023-12-02 12:22:11,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:11,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:11,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:11,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:11,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,098 INFO L138 Inliner]: procedures = 53, calls = 98, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 190 [2023-12-02 12:22:11,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:11,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:11,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:11,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:11,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:11,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:11,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:11,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:11,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (1/1) ... [2023-12-02 12:22:11,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:11,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:11,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:11,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 12:22:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 12:22:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 12:22:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 12:22:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 12:22:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 12:22:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 12:22:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 12:22:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 12:22:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 12:22:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 12:22:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 12:22:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 12:22:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 12:22:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:22:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 12:22:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 12:22:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:11,329 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:11,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:11,612 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:11,724 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:11,725 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 12:22:11,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11 BoogieIcfgContainer [2023-12-02 12:22:11,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:11,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:11,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:11,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:11,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:10" (1/3) ... [2023-12-02 12:22:11,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51254f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:11, skipping insertion in model container [2023-12-02 12:22:11,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:11" (2/3) ... [2023-12-02 12:22:11,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51254f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:11, skipping insertion in model container [2023-12-02 12:22:11,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11" (3/3) ... [2023-12-02 12:22:11,739 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2023-12-02 12:22:11,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:11,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:11,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:11,839 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;@75b33015, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:11,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 12:22:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 12:22:11,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:11,859 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 12:22:11,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:11,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1811425814, now seen corresponding path program 1 times [2023-12-02 12:22:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:11,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634274041] [2023-12-02 12:22:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:12,162 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 12:22:12,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:12,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634274041] [2023-12-02 12:22:12,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634274041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:12,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:12,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:22:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050449256] [2023-12-02 12:22:12,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:12,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:22:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:12,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:22:12,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:22:12,208 INFO L87 Difference]: Start difference. First operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 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 12:22:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:12,285 INFO L93 Difference]: Finished difference Result 122 states and 165 transitions. [2023-12-02 12:22:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:22:12,288 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 12:22:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:12,298 INFO L225 Difference]: With dead ends: 122 [2023-12-02 12:22:12,298 INFO L226 Difference]: Without dead ends: 57 [2023-12-02 12:22:12,303 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 12:22:12,308 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:12,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:22:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-02 12:22:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-02 12:22:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 42 states have internal predecessors, (46), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 12:22:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2023-12-02 12:22:12,355 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 17 [2023-12-02 12:22:12,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:12,355 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2023-12-02 12:22:12,356 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 12:22:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-12-02 12:22:12,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 12:22:12,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:12,359 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 12:22:12,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:22:12,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:12,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1654809410, now seen corresponding path program 1 times [2023-12-02 12:22:12,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:12,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585829846] [2023-12-02 12:22:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:12,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:12,488 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 12:22:12,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585829846] [2023-12-02 12:22:12,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585829846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:12,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:12,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:22:12,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411053702] [2023-12-02 12:22:12,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:12,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:22:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:22:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:22:12,494 INFO L87 Difference]: Start difference. First operand 57 states and 73 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 12:22:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:12,545 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2023-12-02 12:22:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:22:12,546 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 12:22:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:12,548 INFO L225 Difference]: With dead ends: 91 [2023-12-02 12:22:12,548 INFO L226 Difference]: Without dead ends: 49 [2023-12-02 12:22:12,549 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 12:22:12,551 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:12,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:22:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-02 12:22:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-02 12:22:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:22:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2023-12-02 12:22:12,565 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 18 [2023-12-02 12:22:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:12,565 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-12-02 12:22:12,566 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 12:22:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-12-02 12:22:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 12:22:12,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:12,568 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] [2023-12-02 12:22:12,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:22:12,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:12,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash 964352778, now seen corresponding path program 1 times [2023-12-02 12:22:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:12,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782957840] [2023-12-02 12:22:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:12,682 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 12:22:12,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782957840] [2023-12-02 12:22:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782957840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:22:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421617950] [2023-12-02 12:22:12,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:22:12,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:22:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:22:12,686 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 12:22:12,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:12,749 INFO L93 Difference]: Finished difference Result 96 states and 123 transitions. [2023-12-02 12:22:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:22:12,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2023-12-02 12:22:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:12,751 INFO L225 Difference]: With dead ends: 96 [2023-12-02 12:22:12,751 INFO L226 Difference]: Without dead ends: 49 [2023-12-02 12:22:12,752 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 12:22:12,754 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:12,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:22:12,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-02 12:22:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-02 12:22:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 37 states have internal predecessors, (39), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:22:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2023-12-02 12:22:12,768 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 20 [2023-12-02 12:22:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:12,769 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-12-02 12:22:12,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 12:22:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-12-02 12:22:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 12:22:12,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:12,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:12,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:22:12,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:12,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash 24107894, now seen corresponding path program 1 times [2023-12-02 12:22:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:12,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281077841] [2023-12-02 12:22:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:13,024 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 12:22:13,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:13,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281077841] [2023-12-02 12:22:13,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281077841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:13,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:13,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:13,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450664712] [2023-12-02 12:22:13,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:13,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:13,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:13,028 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 12:22:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:13,148 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2023-12-02 12:22:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:13,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-12-02 12:22:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:13,152 INFO L225 Difference]: With dead ends: 130 [2023-12-02 12:22:13,152 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 12:22:13,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:13,155 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 28 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:13,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 177 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 12:22:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-12-02 12:22:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 59 states have internal predecessors, (63), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 12:22:13,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2023-12-02 12:22:13,177 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 30 [2023-12-02 12:22:13,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:13,177 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2023-12-02 12:22:13,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 12:22:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2023-12-02 12:22:13,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 12:22:13,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:13,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:13,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:22:13,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:13,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:13,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1883554558, now seen corresponding path program 1 times [2023-12-02 12:22:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:13,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715098705] [2023-12-02 12:22:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:13,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:13,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:22:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:13,264 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:22:13,265 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:22:13,266 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:22:13,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:22:13,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 12:22:13,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:22:13,304 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-12-02 12:22:13,308 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated [2023-12-02 12:22:13,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:22:13 BoogieIcfgContainer [2023-12-02 12:22:13,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:22:13,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:22:13,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:22:13,326 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:22:13,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11" (3/4) ... [2023-12-02 12:22:13,327 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 12:22:13,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-12-02 12:22:13,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated [2023-12-02 12:22:13,400 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:22:13,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:22:13,401 INFO L158 Benchmark]: Toolchain (without parser) took 2853.43ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 111.8MB in the end (delta: 1.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,401 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 82.9MB in the end (delta: 34.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:13,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.52ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 93.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.85ms. Allocated memory is still 151.0MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,403 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 151.0MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,403 INFO L158 Benchmark]: RCFGBuilder took 592.19ms. Allocated memory is still 151.0MB. Free memory was 90.3MB in the beginning and 65.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,404 INFO L158 Benchmark]: TraceAbstraction took 1593.81ms. Allocated memory is still 151.0MB. Free memory was 64.4MB in the beginning and 116.0MB in the end (delta: -51.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,405 INFO L158 Benchmark]: Witness Printer took 74.91ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 111.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 12:22:13,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 82.9MB in the end (delta: 34.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.52ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 93.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.85ms. Allocated memory is still 151.0MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 151.0MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.19ms. Allocated memory is still 151.0MB. Free memory was 90.3MB in the beginning and 65.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1593.81ms. Allocated memory is still 151.0MB. Free memory was 64.4MB in the beginning and 116.0MB in the end (delta: -51.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 74.91ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 111.8MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 603]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [603] - GenericResultAtLocation [Line: 612]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [612] - GenericResultAtLocation [Line: 680]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [680] - GenericResultAtLocation [Line: 770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] - GenericResultAtLocation [Line: 869]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [869] - GenericResultAtLocation [Line: 903]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [903] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret49 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: 608]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L638] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE waterLevel < 2 [L701] waterLevel = waterLevel + 1 [L638] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() [L646] 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] [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___2)) [L660] tmp___1 = __VERIFIER_nondet_int() [L662] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L669] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] COND TRUE \read(systemActive) [L442] CALL processEnvironment() [L488] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L465] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] RET processEnvironment() [L448] CALL __utac_acc__Specification3_spec__1() [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); [L877] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L883] CALL, EXPR getWaterLevel() [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp___0 = getWaterLevel() [L885] COND TRUE tmp___0 == 2 [L887] CALL, EXPR isPumpRunning() [L540] int retValue_acc ; [L543] retValue_acc = pumpRunning [L544] return (retValue_acc); [L887] RET, EXPR isPumpRunning() [L887] tmp___1 = isPumpRunning() [L889] COND FALSE !(\read(tmp___1)) [L893] CALL __automaton_fail() [L608] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 372 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 200 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 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 12:22:13,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_110b3524-fa0f-4377-85aa-144ce0cbe63f/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