./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/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_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/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_dccdcab1-c822-4eec-a542-1587946221bc/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 af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:42:51,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:42:51,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:42:51,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:42:51,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:42:51,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:42:51,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:42:51,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:42:51,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:42:51,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:42:51,507 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:42:51,507 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:42:51,507 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:42:51,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:42:51,508 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:42:51,509 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:42:51,509 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:42:51,510 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:42:51,510 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:42:51,511 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:42:51,511 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:42:51,512 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:42:51,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:42:51,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:42:51,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:42:51,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:42:51,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:42:51,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:42:51,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:42:51,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:42:51,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:42:51,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:42:51,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:42:51,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:42:51,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:42:51,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:42:51,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:42:51,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:42:51,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:42:51,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:42:51,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:42:51,519 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:42:51,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:42:51,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:42:51,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:42:51,520 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:42:51,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:42:51,520 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_dccdcab1-c822-4eec-a542-1587946221bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 [2023-12-02 16:42:51,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:42:51,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:42:51,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:42:51,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:42:51,775 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:42:51,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2023-12-02 16:42:54,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:42:54,699 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:42:54,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2023-12-02 16:42:54,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/data/dda80e00a/25885a9e8eba4a9199b21399c6d01869/FLAG40cb541b3 [2023-12-02 16:42:54,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/data/dda80e00a/25885a9e8eba4a9199b21399c6d01869 [2023-12-02 16:42:54,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:42:54,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:42:54,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:42:54,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:42:54,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:42:54,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:42:54" (1/1) ... [2023-12-02 16:42:54,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cb534d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:54, skipping insertion in model container [2023-12-02 16:42:54,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:42:54" (1/1) ... [2023-12-02 16:42:54,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:42:54,954 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_dccdcab1-c822-4eec-a542-1587946221bc/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c[3438,3451] [2023-12-02 16:42:55,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:42:55,044 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:42:55,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-02 16:42:55,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2023-12-02 16:42:55,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [190] [2023-12-02 16:42:55,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [199] [2023-12-02 16:42:55,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [431] [2023-12-02 16:42:55,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [500] [2023-12-02 16:42:55,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [550] [2023-12-02 16:42:55,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2023-12-02 16:42:55,067 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_dccdcab1-c822-4eec-a542-1587946221bc/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c[3438,3451] [2023-12-02 16:42:55,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:42:55,134 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:42:55,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55 WrapperNode [2023-12-02 16:42:55,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:42:55,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:42:55,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:42:55,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:42:55,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,175 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 203 [2023-12-02 16:42:55,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:42:55,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:42:55,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:42:55,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:42:55,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:42:55,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:42:55,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:42:55,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:42:55,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (1/1) ... [2023-12-02 16:42:55,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:42:55,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:42:55,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:42:55,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:42:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:42:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 16:42:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 16:42:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 16:42:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 16:42:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 16:42:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 16:42:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 16:42:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 16:42:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:42:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:42:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 16:42:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 16:42:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-02 16:42:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-02 16:42:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 16:42:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 16:42:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:42:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 16:42:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 16:42:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:42:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:42:55,347 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:42:55,349 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:42:55,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:42:55,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:42:55,694 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 16:42:55,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:42:55 BoogieIcfgContainer [2023-12-02 16:42:55,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:42:55,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:42:55,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:42:55,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:42:55,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:42:54" (1/3) ... [2023-12-02 16:42:55,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3d9566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:42:55, skipping insertion in model container [2023-12-02 16:42:55,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:42:55" (2/3) ... [2023-12-02 16:42:55,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3d9566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:42:55, skipping insertion in model container [2023-12-02 16:42:55,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:42:55" (3/3) ... [2023-12-02 16:42:55,703 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product32.cil.c [2023-12-02 16:42:55,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:42:55,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:42:55,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:42:55,771 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;@3a4e36b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:42:55,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:42:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 16:42:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:42:55,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:55,785 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:42:55,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:55,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1937709648, now seen corresponding path program 1 times [2023-12-02 16:42:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:42:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164255837] [2023-12-02 16:42:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:55,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:42:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:42:55,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:42:55,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164255837] [2023-12-02 16:42:55,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164255837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:55,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:42:55,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:42:55,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6346162] [2023-12-02 16:42:55,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:42:55,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:42:55,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:42:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:42:55,998 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:56,055 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2023-12-02 16:42:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:42:56,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-12-02 16:42:56,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:56,066 INFO L225 Difference]: With dead ends: 140 [2023-12-02 16:42:56,066 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 16:42:56,069 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 16:42:56,072 INFO L413 NwaCegarLoop]: 75 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, 75 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 16:42:56,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:42:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 16:42:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-02 16:42:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 49 states have internal predecessors, (55), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 16:42:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2023-12-02 16:42:56,109 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 21 [2023-12-02 16:42:56,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:56,109 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2023-12-02 16:42:56,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-12-02 16:42:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 16:42:56,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:56,113 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:42:56,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:42:56,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:56,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1861247738, now seen corresponding path program 1 times [2023-12-02 16:42:56,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:42:56,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414685195] [2023-12-02 16:42:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:56,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:42:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:56,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:42:56,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:42:56,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414685195] [2023-12-02 16:42:56,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414685195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:56,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:42:56,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:42:56,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871227274] [2023-12-02 16:42:56,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:56,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:42:56,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:42:56,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:42:56,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:42:56,213 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:56,253 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2023-12-02 16:42:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:42:56,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 16:42:56,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:56,255 INFO L225 Difference]: With dead ends: 104 [2023-12-02 16:42:56,255 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 16:42:56,256 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 16:42:56,258 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:42:56,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:42:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 16:42:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 16:42:56,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 16:42:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2023-12-02 16:42:56,269 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 22 [2023-12-02 16:42:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:56,270 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2023-12-02 16:42:56,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-12-02 16:42:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 16:42:56,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:56,272 INFO L195 NwaCegarLoop]: trace histogram [2, 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 16:42:56,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:42:56,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:56,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1290008401, now seen corresponding path program 1 times [2023-12-02 16:42:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:42:56,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433383761] [2023-12-02 16:42:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:42:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:42:56,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:42:56,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433383761] [2023-12-02 16:42:56,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433383761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:56,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:42:56,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:42:56,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85078095] [2023-12-02 16:42:56,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:56,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:42:56,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:42:56,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:42:56,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:42:56,360 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:42:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:56,418 INFO L93 Difference]: Finished difference Result 170 states and 222 transitions. [2023-12-02 16:42:56,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:42:56,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-12-02 16:42:56,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:56,420 INFO L225 Difference]: With dead ends: 170 [2023-12-02 16:42:56,420 INFO L226 Difference]: Without dead ends: 114 [2023-12-02 16:42:56,421 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 16:42:56,423 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 67 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:42:56,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 132 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:42:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-02 16:42:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2023-12-02 16:42:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 83 states have internal predecessors, (93), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 17 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 16:42:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2023-12-02 16:42:56,446 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 25 [2023-12-02 16:42:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:56,447 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2023-12-02 16:42:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:42:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2023-12-02 16:42:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 16:42:56,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:56,449 INFO L195 NwaCegarLoop]: trace histogram [2, 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 16:42:56,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:42:56,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:56,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1459376624, now seen corresponding path program 1 times [2023-12-02 16:42:56,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:42:56,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901327354] [2023-12-02 16:42:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:56,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:42:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:42:56,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:42:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901327354] [2023-12-02 16:42:56,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901327354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:56,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:42:56,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:42:56,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234020671] [2023-12-02 16:42:56,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:56,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:42:56,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:42:56,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:42:56,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:42:56,593 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:56,711 INFO L93 Difference]: Finished difference Result 192 states and 251 transitions. [2023-12-02 16:42:56,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:42:56,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-12-02 16:42:56,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:56,712 INFO L225 Difference]: With dead ends: 192 [2023-12-02 16:42:56,712 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:42:56,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:42:56,715 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:42:56,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 117 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:42:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:42:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:42:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:42:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:42:56,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-12-02 16:42:56,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:56,717 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:42:56,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:42:56,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:42:56,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:42:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:42:56,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:42:56,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:42:56,917 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 325 332) no Hoare annotation was computed. [2023-12-02 16:42:56,918 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 332) the Hoare annotation is: true [2023-12-02 16:42:56,918 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 241 247) no Hoare annotation was computed. [2023-12-02 16:42:56,918 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 241 247) the Hoare annotation is: true [2023-12-02 16:42:56,918 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 943 954) the Hoare annotation is: true [2023-12-02 16:42:56,918 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2023-12-02 16:42:56,918 INFO L899 garLoopResultBuilder]: For program point L221-2(lines 217 239) no Hoare annotation was computed. [2023-12-02 16:42:56,918 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 291) no Hoare annotation was computed. [2023-12-02 16:42:56,918 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 296) no Hoare annotation was computed. [2023-12-02 16:42:56,919 INFO L895 garLoopResultBuilder]: At program point L531(line 531) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,919 INFO L899 garLoopResultBuilder]: For program point L531-1(line 531) no Hoare annotation was computed. [2023-12-02 16:42:56,919 INFO L895 garLoopResultBuilder]: At program point L516(line 516) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,919 INFO L899 garLoopResultBuilder]: For program point L516-1(line 516) no Hoare annotation was computed. [2023-12-02 16:42:56,919 INFO L895 garLoopResultBuilder]: At program point L289(line 289) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:42:56,920 INFO L895 garLoopResultBuilder]: At program point L285(line 285) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:42:56,920 INFO L895 garLoopResultBuilder]: At program point L281(line 281) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:42:56,920 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2023-12-02 16:42:56,920 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 543) no Hoare annotation was computed. [2023-12-02 16:42:56,920 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 546) no Hoare annotation was computed. [2023-12-02 16:42:56,920 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 521 549) no Hoare annotation was computed. [2023-12-02 16:42:56,920 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 214 240) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,921 INFO L895 garLoopResultBuilder]: At program point L294(line 294) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point L294-1(lines 275 299) no Hoare annotation was computed. [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point L228-1(lines 228 234) no Hoare annotation was computed. [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point L195(line 195) no Hoare annotation was computed. [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 540) no Hoare annotation was computed. [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 214 240) no Hoare annotation was computed. [2023-12-02 16:42:56,921 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 195) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L902 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2023-12-02 16:42:56,922 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 90 119) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L899 garLoopResultBuilder]: For program point L115(lines 90 119) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 90 119) the Hoare annotation is: true [2023-12-02 16:42:56,922 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2023-12-02 16:42:56,922 INFO L902 garLoopResultBuilder]: At program point L104-1(lines 104 108) the Hoare annotation is: true [2023-12-02 16:42:56,923 INFO L902 garLoopResultBuilder]: At program point L100-2(lines 100 114) the Hoare annotation is: true [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 418) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L412-1(lines 412 418) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 184) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L495(lines 432 499) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L177-2(lines 177 184) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 468) no Hoare annotation was computed. [2023-12-02 16:42:56,923 INFO L899 garLoopResultBuilder]: For program point L462-1(lines 462 468) no Hoare annotation was computed. [2023-12-02 16:42:56,924 INFO L895 garLoopResultBuilder]: At program point L454(line 454) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:42:56,924 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:42:56,924 INFO L895 garLoopResultBuilder]: At program point L492(lines 441 493) the Hoare annotation is: false [2023-12-02 16:42:56,924 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:42:56,924 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 486) no Hoare annotation was computed. [2023-12-02 16:42:56,924 INFO L895 garLoopResultBuilder]: At program point L414(line 414) the Hoare annotation is: false [2023-12-02 16:42:56,924 INFO L895 garLoopResultBuilder]: At program point L480-2(lines 472 487) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:42:56,925 INFO L899 garLoopResultBuilder]: For program point L443(lines 442 491) no Hoare annotation was computed. [2023-12-02 16:42:56,925 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 487) no Hoare annotation was computed. [2023-12-02 16:42:56,925 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:42:56,925 INFO L895 garLoopResultBuilder]: At program point L489(lines 442 491) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:42:56,925 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 458) no Hoare annotation was computed. [2023-12-02 16:42:56,925 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 452 458) no Hoare annotation was computed. [2023-12-02 16:42:56,925 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2023-12-02 16:42:56,925 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 931 942) the Hoare annotation is: true [2023-12-02 16:42:56,926 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 249 273) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,926 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:42:56,926 INFO L895 garLoopResultBuilder]: At program point L259(line 259) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:42:56,926 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 265) no Hoare annotation was computed. [2023-12-02 16:42:56,926 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 270) no Hoare annotation was computed. [2023-12-02 16:42:56,926 INFO L895 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:42:56,927 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 249 273) no Hoare annotation was computed. [2023-12-02 16:42:56,927 INFO L899 garLoopResultBuilder]: For program point L268-1(lines 249 273) no Hoare annotation was computed. [2023-12-02 16:42:56,927 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 344 352) no Hoare annotation was computed. [2023-12-02 16:42:56,927 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 344 352) the Hoare annotation is: true [2023-12-02 16:42:56,927 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 333 343) no Hoare annotation was computed. [2023-12-02 16:42:56,927 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 333 343) the Hoare annotation is: true [2023-12-02 16:42:56,930 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 16:42:56,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:42:56,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:42:56 BoogieIcfgContainer [2023-12-02 16:42:56,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:42:56,942 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:42:56,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:42:56,943 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:42:56,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:42:55" (3/4) ... [2023-12-02 16:42:56,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:42:56,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 16:42:56,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 16:42:56,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 16:42:56,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 16:42:56,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 16:42:56,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 16:42:56,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:42:56,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 16:42:56,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-12-02 16:42:56,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-12-02 16:42:56,957 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 16:42:56,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 16:42:56,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:42:56,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:42:57,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:42:57,066 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:42:57,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:42:57,067 INFO L158 Benchmark]: Toolchain (without parser) took 2333.80ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 95.3MB in the beginning and 95.9MB in the end (delta: -568.2kB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,067 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:42:57,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.34ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 75.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.92ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,068 INFO L158 Benchmark]: Boogie Preprocessor took 22.57ms. Allocated memory is still 136.3MB. Free memory was 73.5MB in the beginning and 71.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,069 INFO L158 Benchmark]: RCFGBuilder took 496.92ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 71.8MB in the beginning and 119.4MB in the end (delta: -47.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,069 INFO L158 Benchmark]: TraceAbstraction took 1243.79ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 103.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,070 INFO L158 Benchmark]: Witness Printer took 123.68ms. Allocated memory is still 163.6MB. Free memory was 103.2MB in the beginning and 95.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:42:57,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.34ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 75.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.92ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.57ms. Allocated memory is still 136.3MB. Free memory was 73.5MB in the beginning and 71.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.92ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 71.8MB in the beginning and 119.4MB in the end (delta: -47.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.79ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 103.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 123.68ms. Allocated memory is still 163.6MB. Free memory was 103.2MB in the beginning and 95.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [190] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [199] - GenericResultAtLocation [Line: 431]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [431] - GenericResultAtLocation [Line: 500]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [500] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [550] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 195]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 430 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 242 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 189 PreInvPairs, 199 NumberOfFragments, 108 HoareAnnotationTreeSize, 189 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 256 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-02 16:42:57,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dccdcab1-c822-4eec-a542-1587946221bc/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 Result: TRUE