./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b26970eb65416cb1a1e0bb57bcc2feb0d77f09134ca74c3d0e7292816d2c43c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:47,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:47,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:23:47,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:47,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:47,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:47,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:47,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:47,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:47,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:47,295 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:47,296 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:47,296 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:47,297 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:47,298 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:47,298 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:47,299 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:47,300 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:47,300 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:47,301 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:47,302 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:47,302 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:47,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:47,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:23:47,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:47,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:47,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:47,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:47,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:23:47,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:47,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:23:47,326 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:47,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:23:47,328 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:47,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:47,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:47,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:47,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:47,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:47,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:47,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:23:47,332 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:47,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:47,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:47,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:23:47,334 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:47,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:47,334 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_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b26970eb65416cb1a1e0bb57bcc2feb0d77f09134ca74c3d0e7292816d2c43c [2023-11-23 21:23:47,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:47,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:47,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:47,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:47,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:47,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c [2023-11-23 21:23:50,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:51,175 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:51,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c [2023-11-23 21:23:51,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/data/d3e541bef/f7f2015cc0cf4442b512e4ad16035eba/FLAG1da718a94 [2023-11-23 21:23:51,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/data/d3e541bef/f7f2015cc0cf4442b512e4ad16035eba [2023-11-23 21:23:51,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:51,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:51,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:51,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:51,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:51,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3c3bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51, skipping insertion in model container [2023-11-23 21:23:51,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:51,618 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_ab8f640d-c274-4c9a-af44-099b0ef72050/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c[8611,8624] [2023-11-23 21:23:51,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:51,725 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:51,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-23 21:23:51,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] [2023-11-23 21:23:51,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [247] [2023-11-23 21:23:51,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [282] [2023-11-23 21:23:51,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [310] [2023-11-23 21:23:51,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [523] [2023-11-23 21:23:51,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [590] [2023-11-23 21:23:51,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [599] [2023-11-23 21:23:51,788 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_ab8f640d-c274-4c9a-af44-099b0ef72050/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c[8611,8624] [2023-11-23 21:23:51,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:51,865 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:51,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51 WrapperNode [2023-11-23 21:23:51,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:51,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:51,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:51,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:51,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,925 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 174 [2023-11-23 21:23:51,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:51,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:51,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:51,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:51,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:51,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:51,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:51,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:51,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (1/1) ... [2023-11-23 21:23:51,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:52,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:52,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:52,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 21:23:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 21:23:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 21:23:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 21:23:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:23:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:23:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:23:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:23:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:23:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:23:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:23:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:23:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 21:23:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 21:23:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 21:23:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 21:23:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:23:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:23:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:23:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:52,144 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:52,148 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:52,452 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:52,583 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:52,584 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:23:52,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:52 BoogieIcfgContainer [2023-11-23 21:23:52,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:52,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:52,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:52,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:52,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:51" (1/3) ... [2023-11-23 21:23:52,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4859be5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:52, skipping insertion in model container [2023-11-23 21:23:52,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:51" (2/3) ... [2023-11-23 21:23:52,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4859be5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:52, skipping insertion in model container [2023-11-23 21:23:52,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:52" (3/3) ... [2023-11-23 21:23:52,595 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product31.cil.c [2023-11-23 21:23:52,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:52,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:23:52,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:52,675 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;@300b8393, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:52,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:23:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 52 states have internal predecessors, (61), 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) [2023-11-23 21:23:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:23:52,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:52,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:52,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:52,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -775276959, now seen corresponding path program 1 times [2023-11-23 21:23:52,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:52,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347903217] [2023-11-23 21:23:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:53,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:53,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347903217] [2023-11-23 21:23:53,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347903217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:53,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:53,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:23:53,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446929030] [2023-11-23 21:23:53,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:53,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:23:53,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:23:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:23:53,094 INFO L87 Difference]: Start difference. First operand has 70 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 52 states have internal predecessors, (61), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:53,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:53,194 INFO L93 Difference]: Finished difference Result 138 states and 187 transitions. [2023-11-23 21:23:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:23:53,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2023-11-23 21:23:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:53,210 INFO L225 Difference]: With dead ends: 138 [2023-11-23 21:23:53,210 INFO L226 Difference]: Without dead ends: 65 [2023-11-23 21:23:53,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:23:53,220 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:53,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:23:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-23 21:23:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-23 21:23:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 40 states have (on average 1.325) internal successors, (53), 48 states have internal predecessors, (53), 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) [2023-11-23 21:23:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2023-11-23 21:23:53,290 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 16 [2023-11-23 21:23:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:53,291 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2023-11-23 21:23:53,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2023-11-23 21:23:53,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:23:53,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:53,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:53,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:23:53,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:53,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1615571341, now seen corresponding path program 1 times [2023-11-23 21:23:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:53,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684855334] [2023-11-23 21:23:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:53,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:53,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684855334] [2023-11-23 21:23:53,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684855334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:53,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:53,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306562917] [2023-11-23 21:23:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:53,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:53,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:53,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:53,519 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:53,605 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2023-11-23 21:23:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:53,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 21:23:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:53,610 INFO L225 Difference]: With dead ends: 102 [2023-11-23 21:23:53,610 INFO L226 Difference]: Without dead ends: 57 [2023-11-23 21:23:53,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:53,614 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:53,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 103 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:23:53,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-23 21:23:53,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-23 21:23:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 43 states have internal predecessors, (47), 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) [2023-11-23 21:23:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2023-11-23 21:23:53,628 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 17 [2023-11-23 21:23:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:53,629 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2023-11-23 21:23:53,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-23 21:23:53,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:23:53,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:53,631 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] [2023-11-23 21:23:53,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:23:53,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:53,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:53,633 INFO L85 PathProgramCache]: Analyzing trace with hash 922195185, now seen corresponding path program 1 times [2023-11-23 21:23:53,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315297332] [2023-11-23 21:23:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:53,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:53,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:53,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315297332] [2023-11-23 21:23:53,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315297332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:53,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:53,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67175784] [2023-11-23 21:23:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:53,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:23:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:53,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:23:53,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:53,873 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2023-11-23 21:23:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:54,129 INFO L93 Difference]: Finished difference Result 159 states and 210 transitions. [2023-11-23 21:23:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:23:54,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2023-11-23 21:23:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:54,136 INFO L225 Difference]: With dead ends: 159 [2023-11-23 21:23:54,136 INFO L226 Difference]: Without dead ends: 104 [2023-11-23 21:23:54,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:23:54,148 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 86 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:54,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 150 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-23 21:23:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2023-11-23 21:23:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 66 states have internal predecessors, (74), 18 states have call successors, (18), 13 states have call predecessors, (18), 13 states have return successors, (19), 13 states have call predecessors, (19), 18 states have call successors, (19) [2023-11-23 21:23:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2023-11-23 21:23:54,188 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 20 [2023-11-23 21:23:54,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:54,189 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2023-11-23 21:23:54,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2023-11-23 21:23:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2023-11-23 21:23:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 21:23:54,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:54,195 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] [2023-11-23 21:23:54,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:54,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:54,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1142082804, now seen corresponding path program 1 times [2023-11-23 21:23:54,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:54,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075632115] [2023-11-23 21:23:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:54,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:54,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075632115] [2023-11-23 21:23:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075632115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:54,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:54,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:54,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208596144] [2023-11-23 21:23:54,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:54,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:23:54,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:54,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:23:54,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:54,310 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:54,363 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2023-11-23 21:23:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:23:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-23 21:23:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:54,364 INFO L225 Difference]: With dead ends: 154 [2023-11-23 21:23:54,365 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:23:54,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:23:54,367 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:54,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 63 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:23:54,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:23:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:23:54,370 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) [2023-11-23 21:23:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:23:54,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-11-23 21:23:54,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:54,371 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:23:54,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:23:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:23:54,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:23:54,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:23:54,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:23:54,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:23:54,614 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 425 432) no Hoare annotation was computed. [2023-11-23 21:23:54,614 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 425 432) the Hoare annotation is: true [2023-11-23 21:23:54,615 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 341 347) no Hoare annotation was computed. [2023-11-23 21:23:54,615 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 341 347) the Hoare annotation is: true [2023-11-23 21:23:54,615 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 185 196) the Hoare annotation is: true [2023-11-23 21:23:54,616 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 185 196) no Hoare annotation was computed. [2023-11-23 21:23:54,616 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 197 205) the Hoare annotation is: true [2023-11-23 21:23:54,616 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 197 205) no Hoare annotation was computed. [2023-11-23 21:23:54,616 INFO L899 garLoopResultBuilder]: For program point L321-1(lines 320 339) no Hoare annotation was computed. [2023-11-23 21:23:54,616 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 391) no Hoare annotation was computed. [2023-11-23 21:23:54,617 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 396) no Hoare annotation was computed. [2023-11-23 21:23:54,617 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 303) no Hoare annotation was computed. [2023-11-23 21:23:54,617 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 306) no Hoare annotation was computed. [2023-11-23 21:23:54,617 INFO L899 garLoopResultBuilder]: For program point L293-1(lines 285 309) no Hoare annotation was computed. [2023-11-23 21:23:54,617 INFO L899 garLoopResultBuilder]: For program point L595(line 595) no Hoare annotation was computed. [2023-11-23 21:23:54,618 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 317 340) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-11-23 21:23:54,618 INFO L895 garLoopResultBuilder]: At program point L389(line 389) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:23:54,618 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:23:54,619 INFO L895 garLoopResultBuilder]: At program point L381(line 381) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:23:54,619 INFO L899 garLoopResultBuilder]: For program point L381-1(line 381) no Hoare annotation was computed. [2023-11-23 21:23:54,619 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 317 340) no Hoare annotation was computed. [2023-11-23 21:23:54,619 INFO L895 garLoopResultBuilder]: At program point L394(line 394) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-11-23 21:23:54,620 INFO L899 garLoopResultBuilder]: For program point L394-1(lines 375 399) no Hoare annotation was computed. [2023-11-23 21:23:54,620 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2023-11-23 21:23:54,620 INFO L899 garLoopResultBuilder]: For program point L328-1(lines 328 334) no Hoare annotation was computed. [2023-11-23 21:23:54,621 INFO L895 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-11-23 21:23:54,621 INFO L899 garLoopResultBuilder]: For program point L291-1(line 291) no Hoare annotation was computed. [2023-11-23 21:23:54,621 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-23 21:23:54,621 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-23 21:23:54,621 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-23 21:23:54,622 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-23 21:23:54,622 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-23 21:23:54,622 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-23 21:23:54,622 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-23 21:23:54,623 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-23 21:23:54,623 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-23 21:23:54,623 INFO L899 garLoopResultBuilder]: For program point L535(lines 534 581) no Hoare annotation was computed. [2023-11-23 21:23:54,623 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 577) no Hoare annotation was computed. [2023-11-23 21:23:54,624 INFO L895 garLoopResultBuilder]: At program point L556(line 556) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:23:54,624 INFO L899 garLoopResultBuilder]: For program point L585(lines 524 589) no Hoare annotation was computed. [2023-11-23 21:23:54,624 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 550) no Hoare annotation was computed. [2023-11-23 21:23:54,624 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 544 550) no Hoare annotation was computed. [2023-11-23 21:23:54,624 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-11-23 21:23:54,625 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-11-23 21:23:54,625 INFO L895 garLoopResultBuilder]: At program point L582(lines 533 583) the Hoare annotation is: false [2023-11-23 21:23:54,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:23:54,625 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2023-11-23 21:23:54,626 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 512 518) no Hoare annotation was computed. [2023-11-23 21:23:54,626 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2023-11-23 21:23:54,626 INFO L895 garLoopResultBuilder]: At program point L570-2(lines 564 577) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:23:54,626 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 560) no Hoare annotation was computed. [2023-11-23 21:23:54,626 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:23:54,627 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 554 560) no Hoare annotation was computed. [2023-11-23 21:23:54,627 INFO L895 garLoopResultBuilder]: At program point L579(lines 534 581) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:23:54,627 INFO L895 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:23:54,627 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: false [2023-11-23 21:23:54,628 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 173 184) no Hoare annotation was computed. [2023-11-23 21:23:54,628 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 173 184) the Hoare annotation is: true [2023-11-23 21:23:54,628 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 370) no Hoare annotation was computed. [2023-11-23 21:23:54,628 INFO L895 garLoopResultBuilder]: At program point L368(line 368) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-11-23 21:23:54,629 INFO L899 garLoopResultBuilder]: For program point L368-1(lines 349 373) no Hoare annotation was computed. [2023-11-23 21:23:54,629 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 349 373) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-11-23 21:23:54,629 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 349 373) no Hoare annotation was computed. [2023-11-23 21:23:54,629 INFO L895 garLoopResultBuilder]: At program point L363(line 363) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-11-23 21:23:54,630 INFO L895 garLoopResultBuilder]: At program point L359(line 359) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-11-23 21:23:54,630 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 365) no Hoare annotation was computed. [2023-11-23 21:23:54,630 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 433 443) no Hoare annotation was computed. [2023-11-23 21:23:54,630 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 433 443) the Hoare annotation is: true [2023-11-23 21:23:54,631 INFO L902 garLoopResultBuilder]: At program point L438(line 438) the Hoare annotation is: true [2023-11-23 21:23:54,631 INFO L899 garLoopResultBuilder]: For program point L438-1(line 438) no Hoare annotation was computed. [2023-11-23 21:23:54,634 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 21:23:54,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:23:54,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:23:54 BoogieIcfgContainer [2023-11-23 21:23:54,651 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:23:54,651 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:23:54,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:23:54,652 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:23:54,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:52" (3/4) ... [2023-11-23 21:23:54,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:23:54,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-23 21:23:54,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 21:23:54,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:23:54,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 21:23:54,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:23:54,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:23:54,661 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:23:54,661 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:23:54,661 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-23 21:23:54,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-23 21:23:54,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:23:54,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:23:54,672 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:23:54,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:23:54,703 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-11-23 21:23:54,749 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-11-23 21:23:54,802 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:23:54,803 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:23:54,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:23:54,804 INFO L158 Benchmark]: Toolchain (without parser) took 3594.87ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 108.6MB in the beginning and 166.3MB in the end (delta: -57.7MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,804 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:23:54,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.87ms. Allocated memory is still 140.5MB. Free memory was 108.6MB in the beginning and 89.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.89ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,806 INFO L158 Benchmark]: Boogie Preprocessor took 32.26ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 85.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:23:54,806 INFO L158 Benchmark]: RCFGBuilder took 626.70ms. Allocated memory is still 140.5MB. Free memory was 85.4MB in the beginning and 61.4MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,807 INFO L158 Benchmark]: TraceAbstraction took 2062.35ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 60.9MB in the beginning and 96.3MB in the end (delta: -35.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,807 INFO L158 Benchmark]: Witness Printer took 151.80ms. Allocated memory is still 199.2MB. Free memory was 96.3MB in the beginning and 166.3MB in the end (delta: -70.0MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-23 21:23:54,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.87ms. Allocated memory is still 140.5MB. Free memory was 108.6MB in the beginning and 89.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.89ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.26ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 85.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 626.70ms. Allocated memory is still 140.5MB. Free memory was 85.4MB in the beginning and 61.4MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2062.35ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 60.9MB in the beginning and 96.3MB in the end (delta: -35.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Witness Printer took 151.80ms. Allocated memory is still 199.2MB. Free memory was 96.3MB in the beginning and 166.3MB in the end (delta: -70.0MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] - GenericResultAtLocation [Line: 247]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [247] - GenericResultAtLocation [Line: 282]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [282] - GenericResultAtLocation [Line: 310]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [310] - GenericResultAtLocation [Line: 523]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [523] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [590] - GenericResultAtLocation [Line: 599]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [599] * 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: 595]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 390 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 230 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 162 PreInvPairs, 173 NumberOfFragments, 120 HoareAnnotationTreeSize, 162 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 248 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:23:54,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab8f640d-c274-4c9a-af44-099b0ef72050/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE