./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/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_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/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_d68cc92b-73cc-4a93-9529-f91515810a46/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 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:45,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:45,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:45,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:45,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:45,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:45,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:45,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:45,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:45,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:45,747 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:45,747 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:45,748 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:45,748 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:45,749 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:45,750 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:45,750 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:45,751 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:45,751 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:45,752 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:45,752 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:45,755 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:45,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:45,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:45,757 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:45,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:45,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:45,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:45,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:45,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:45,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:45,760 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:45,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:45,760 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:45,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:45,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:45,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:45,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:45,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:45,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:45,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:45,763 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:45,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:45,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:45,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:45,764 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:45,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:45,765 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_d68cc92b-73cc-4a93-9529-f91515810a46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a [2023-11-23 21:09:46,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:46,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:46,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:46,100 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:46,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:46,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2023-11-23 21:09:49,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:49,566 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:49,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2023-11-23 21:09:49,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/data/bf162281f/e65453fdcfc947c5b954eb5ee099df17/FLAG5a3171529 [2023-11-23 21:09:49,599 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/data/bf162281f/e65453fdcfc947c5b954eb5ee099df17 [2023-11-23 21:09:49,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:49,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:49,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:49,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:49,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:49,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:49" (1/1) ... [2023-11-23 21:09:49,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762bdd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:49, skipping insertion in model container [2023-11-23 21:09:49,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:49" (1/1) ... [2023-11-23 21:09:49,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:49,904 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_d68cc92b-73cc-4a93-9529-f91515810a46/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c[5724,5737] [2023-11-23 21:09:49,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:50,006 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:50,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-23 21:09:50,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] [2023-11-23 21:09:50,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [272] [2023-11-23 21:09:50,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [317] [2023-11-23 21:09:50,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [326] [2023-11-23 21:09:50,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [692] [2023-11-23 21:09:50,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [771] [2023-11-23 21:09:50,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [1110] [2023-11-23 21:09:50,056 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_d68cc92b-73cc-4a93-9529-f91515810a46/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c[5724,5737] [2023-11-23 21:09:50,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:50,184 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:50,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50 WrapperNode [2023-11-23 21:09:50,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:50,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:50,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:50,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:50,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,260 INFO L138 Inliner]: procedures = 65, calls = 124, calls flagged for inlining = 30, calls inlined = 27, statements flattened = 303 [2023-11-23 21:09:50,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:50,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:50,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:50,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:50,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:50,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:50,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:50,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:50,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (1/1) ... [2023-11-23 21:09:50,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:50,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:50,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2023-11-23 21:09:50,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2023-11-23 21:09:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:09:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:09:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:09:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:09:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2023-11-23 21:09:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2023-11-23 21:09:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:09:50,447 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:09:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2023-11-23 21:09:50,448 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2023-11-23 21:09:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-23 21:09:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-23 21:09:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2023-11-23 21:09:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2023-11-23 21:09:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 21:09:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 21:09:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 21:09:50,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 21:09:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-11-23 21:09:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-11-23 21:09:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:09:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:09:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:50,552 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:50,555 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:51,008 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:51,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:51,155 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:09:51,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:51 BoogieIcfgContainer [2023-11-23 21:09:51,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:51,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:51,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:51,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:51,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:49" (1/3) ... [2023-11-23 21:09:51,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b21b6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:51, skipping insertion in model container [2023-11-23 21:09:51,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:50" (2/3) ... [2023-11-23 21:09:51,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b21b6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:51, skipping insertion in model container [2023-11-23 21:09:51,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:51" (3/3) ... [2023-11-23 21:09:51,170 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2023-11-23 21:09:51,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:51,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:51,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:51,261 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;@308b9f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:51,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:51,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 82 states have internal predecessors, (93), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:09:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:09:51,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:51,283 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:51,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:51,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash -177404992, now seen corresponding path program 1 times [2023-11-23 21:09:51,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:51,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429839095] [2023-11-23 21:09:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:51,550 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:09:51,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:51,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429839095] [2023-11-23 21:09:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429839095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:51,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:51,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943532252] [2023-11-23 21:09:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:51,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:51,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:51,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:51,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:51,607 INFO L87 Difference]: Start difference. First operand has 110 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 82 states have internal predecessors, (93), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:51,706 INFO L93 Difference]: Finished difference Result 204 states and 288 transitions. [2023-11-23 21:09:51,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2023-11-23 21:09:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:51,720 INFO L225 Difference]: With dead ends: 204 [2023-11-23 21:09:51,720 INFO L226 Difference]: Without dead ends: 105 [2023-11-23 21:09:51,725 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 21:09:51,730 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:51,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-23 21:09:51,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-23 21:09:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 78 states have internal predecessors, (85), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-23 21:09:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2023-11-23 21:09:51,791 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 45 [2023-11-23 21:09:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:51,793 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2023-11-23 21:09:51,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2023-11-23 21:09:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-23 21:09:51,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:51,798 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:51,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:51,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:51,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1694930537, now seen corresponding path program 1 times [2023-11-23 21:09:51,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:51,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129161442] [2023-11-23 21:09:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:51,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:09:52,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:52,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129161442] [2023-11-23 21:09:52,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129161442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:52,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:52,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:52,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095319328] [2023-11-23 21:09:52,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:52,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:52,025 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:52,089 INFO L93 Difference]: Finished difference Result 167 states and 229 transitions. [2023-11-23 21:09:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:52,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-11-23 21:09:52,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:52,092 INFO L225 Difference]: With dead ends: 167 [2023-11-23 21:09:52,092 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 21:09:52,094 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 21:09:52,095 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 16 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:52,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 212 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 21:09:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-23 21:09:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 73 states have internal predecessors, (79), 27 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 21:09:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2023-11-23 21:09:52,116 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 46 [2023-11-23 21:09:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:52,117 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2023-11-23 21:09:52,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2023-11-23 21:09:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 21:09:52,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:52,130 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:52,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:09:52,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:52,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:52,135 INFO L85 PathProgramCache]: Analyzing trace with hash 936468806, now seen corresponding path program 1 times [2023-11-23 21:09:52,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:52,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238927579] [2023-11-23 21:09:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:52,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:52,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:52,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238927579] [2023-11-23 21:09:52,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238927579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:52,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:52,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:09:52,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326299624] [2023-11-23 21:09:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:52,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:09:52,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:09:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:09:52,393 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:09:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:52,712 INFO L93 Difference]: Finished difference Result 233 states and 333 transitions. [2023-11-23 21:09:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:09:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 49 [2023-11-23 21:09:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:52,722 INFO L225 Difference]: With dead ends: 233 [2023-11-23 21:09:52,722 INFO L226 Difference]: Without dead ends: 152 [2023-11-23 21:09:52,730 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 [2023-11-23 21:09:52,732 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 81 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:52,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 487 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:09:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-23 21:09:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2023-11-23 21:09:52,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 112 states have internal predecessors, (126), 35 states have call successors, (35), 19 states have call predecessors, (35), 19 states have return successors, (45), 33 states have call predecessors, (45), 35 states have call successors, (45) [2023-11-23 21:09:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 206 transitions. [2023-11-23 21:09:52,779 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 206 transitions. Word has length 49 [2023-11-23 21:09:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:52,780 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 206 transitions. [2023-11-23 21:09:52,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:09:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 206 transitions. [2023-11-23 21:09:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:09:52,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:52,785 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:52,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:09:52,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:52,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:52,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1144583504, now seen corresponding path program 1 times [2023-11-23 21:09:52,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:52,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867538548] [2023-11-23 21:09:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:52,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:53,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:53,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867538548] [2023-11-23 21:09:53,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867538548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:53,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:53,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:09:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751086265] [2023-11-23 21:09:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:53,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:09:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:09:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:09:53,449 INFO L87 Difference]: Start difference. First operand 150 states and 206 transitions. Second operand has 12 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-23 21:09:54,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:54,477 INFO L93 Difference]: Finished difference Result 438 states and 615 transitions. [2023-11-23 21:09:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 21:09:54,478 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2023-11-23 21:09:54,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:54,482 INFO L225 Difference]: With dead ends: 438 [2023-11-23 21:09:54,482 INFO L226 Difference]: Without dead ends: 304 [2023-11-23 21:09:54,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2023-11-23 21:09:54,485 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 432 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:54,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1304 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:09:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-11-23 21:09:54,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 292. [2023-11-23 21:09:54,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 192 states have (on average 1.2916666666666667) internal successors, (248), 220 states have internal predecessors, (248), 61 states have call successors, (61), 36 states have call predecessors, (61), 38 states have return successors, (80), 62 states have call predecessors, (80), 61 states have call successors, (80) [2023-11-23 21:09:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 389 transitions. [2023-11-23 21:09:54,530 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 389 transitions. Word has length 67 [2023-11-23 21:09:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:54,531 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 389 transitions. [2023-11-23 21:09:54,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-23 21:09:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 389 transitions. [2023-11-23 21:09:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:09:54,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:54,533 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:54,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:09:54,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:54,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:54,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1536040644, now seen corresponding path program 1 times [2023-11-23 21:09:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:54,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322564485] [2023-11-23 21:09:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:09:54,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322564485] [2023-11-23 21:09:54,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322564485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:54,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:54,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:09:54,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33410773] [2023-11-23 21:09:54,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:54,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:09:54,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:54,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:09:54,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:09:54,930 INFO L87 Difference]: Start difference. First operand 292 states and 389 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 21:09:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:55,580 INFO L93 Difference]: Finished difference Result 719 states and 968 transitions. [2023-11-23 21:09:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:09:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 70 [2023-11-23 21:09:55,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:55,592 INFO L225 Difference]: With dead ends: 719 [2023-11-23 21:09:55,592 INFO L226 Difference]: Without dead ends: 497 [2023-11-23 21:09:55,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:09:55,598 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 432 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:55,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 342 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:09:55,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-23 21:09:55,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 419. [2023-11-23 21:09:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 279 states have (on average 1.2867383512544803) internal successors, (359), 319 states have internal predecessors, (359), 84 states have call successors, (84), 49 states have call predecessors, (84), 55 states have return successors, (111), 90 states have call predecessors, (111), 84 states have call successors, (111) [2023-11-23 21:09:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 554 transitions. [2023-11-23 21:09:55,673 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 554 transitions. Word has length 70 [2023-11-23 21:09:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:55,673 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 554 transitions. [2023-11-23 21:09:55,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 21:09:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 554 transitions. [2023-11-23 21:09:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 21:09:55,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:55,677 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:55,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:09:55,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:55,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -199367881, now seen corresponding path program 1 times [2023-11-23 21:09:55,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808607316] [2023-11-23 21:09:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:55,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 21:09:55,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:55,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808607316] [2023-11-23 21:09:55,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808607316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:55,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:55,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:09:55,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030703317] [2023-11-23 21:09:55,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:55,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:09:55,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:09:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:09:55,888 INFO L87 Difference]: Start difference. First operand 419 states and 554 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:09:56,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:56,533 INFO L93 Difference]: Finished difference Result 866 states and 1162 transitions. [2023-11-23 21:09:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:09:56,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-11-23 21:09:56,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:56,541 INFO L225 Difference]: With dead ends: 866 [2023-11-23 21:09:56,541 INFO L226 Difference]: Without dead ends: 642 [2023-11-23 21:09:56,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:09:56,545 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 193 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:56,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 764 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:09:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-23 21:09:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 511. [2023-11-23 21:09:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 340 states have (on average 1.2882352941176471) internal successors, (438), 385 states have internal predecessors, (438), 99 states have call successors, (99), 65 states have call predecessors, (99), 71 states have return successors, (131), 103 states have call predecessors, (131), 99 states have call successors, (131) [2023-11-23 21:09:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 668 transitions. [2023-11-23 21:09:56,637 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 668 transitions. Word has length 88 [2023-11-23 21:09:56,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:56,639 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 668 transitions. [2023-11-23 21:09:56,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:09:56,640 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 668 transitions. [2023-11-23 21:09:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:09:56,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:56,645 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:56,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:09:56,645 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:56,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:56,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1427526668, now seen corresponding path program 1 times [2023-11-23 21:09:56,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:56,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097703028] [2023-11-23 21:09:56,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:56,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 36 proven. 18 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 21:09:56,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:56,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097703028] [2023-11-23 21:09:56,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097703028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:56,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740721313] [2023-11-23 21:09:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:56,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:56,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:56,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:57,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:09:57,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:57,171 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-23 21:09:57,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740721313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:57,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:09:57,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-23 21:09:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180368199] [2023-11-23 21:09:57,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:57,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:57,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:57,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:09:57,175 INFO L87 Difference]: Start difference. First operand 511 states and 668 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 21:09:57,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:57,301 INFO L93 Difference]: Finished difference Result 1158 states and 1534 transitions. [2023-11-23 21:09:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:57,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 131 [2023-11-23 21:09:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:57,307 INFO L225 Difference]: With dead ends: 1158 [2023-11-23 21:09:57,308 INFO L226 Difference]: Without dead ends: 682 [2023-11-23 21:09:57,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:09:57,311 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 35 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:57,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 253 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-23 21:09:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 665. [2023-11-23 21:09:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 446 states have (on average 1.2914798206278026) internal successors, (576), 504 states have internal predecessors, (576), 125 states have call successors, (125), 86 states have call predecessors, (125), 93 states have return successors, (170), 126 states have call predecessors, (170), 125 states have call successors, (170) [2023-11-23 21:09:57,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 871 transitions. [2023-11-23 21:09:57,403 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 871 transitions. Word has length 131 [2023-11-23 21:09:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:57,404 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 871 transitions. [2023-11-23 21:09:57,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 21:09:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 871 transitions. [2023-11-23 21:09:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 21:09:57,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:57,409 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:57,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:57,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:57,625 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:57,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1604146215, now seen corresponding path program 2 times [2023-11-23 21:09:57,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:57,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071540249] [2023-11-23 21:09:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:57,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 65 proven. 30 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:09:57,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071540249] [2023-11-23 21:09:57,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071540249] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398053166] [2023-11-23 21:09:57,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:09:57,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:57,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:57,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:57,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:09:58,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 21:09:58,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:09:58,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 21:09:58,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 79 proven. 1 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-23 21:09:58,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-23 21:09:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398053166] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1081146556] [2023-11-23 21:09:58,887 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-11-23 21:09:58,887 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:09:58,893 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:09:58,898 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:09:58,899 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:10:08,498 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 27 for LOIs [2023-11-23 21:10:08,507 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 10 for LOIs [2023-11-23 21:10:08,677 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__before__methaneAlarm with input of size 17 for LOIs [2023-11-23 21:10:08,703 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 1 for LOIs [2023-11-23 21:10:08,704 INFO L197 IcfgInterpreter]: Interpreting procedure select_one with input of size 148 for LOIs [2023-11-23 21:10:08,829 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__before__lowWaterSensor with input of size 19 for LOIs [2023-11-23 21:10:08,942 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__before__methaneQuery with input of size 23 for LOIs [2023-11-23 21:10:08,945 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 20 for LOIs [2023-11-23 21:10:08,948 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:10:19,607 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9671#(and (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 2147483647) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~11#1| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~11#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~11#1| 2)) (<= 0 (+ ~pumpRunning~0 2147483648)) (= ~switchedOnBeforeTS~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|))' at error location [2023-11-23 21:10:19,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:10:19,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:10:19,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 20 [2023-11-23 21:10:19,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014354112] [2023-11-23 21:10:19,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:10:19,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 21:10:19,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 21:10:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=543, Invalid=5463, Unknown=0, NotChecked=0, Total=6006 [2023-11-23 21:10:19,614 INFO L87 Difference]: Start difference. First operand 665 states and 871 transitions. Second operand has 20 states, 19 states have (on average 8.210526315789474) internal successors, (156), 20 states have internal predecessors, (156), 10 states have call successors, (38), 7 states have call predecessors, (38), 9 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2023-11-23 21:10:22,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:22,393 INFO L93 Difference]: Finished difference Result 1726 states and 2371 transitions. [2023-11-23 21:10:22,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-23 21:10:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.210526315789474) internal successors, (156), 20 states have internal predecessors, (156), 10 states have call successors, (38), 7 states have call predecessors, (38), 9 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) Word has length 149 [2023-11-23 21:10:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:22,395 INFO L225 Difference]: With dead ends: 1726 [2023-11-23 21:10:22,395 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:10:22,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 411 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5658 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=1195, Invalid=13085, Unknown=0, NotChecked=0, Total=14280 [2023-11-23 21:10:22,411 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1535 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:22,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1175 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 21:10:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:10:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:10:22,413 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 21:10:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:10:22,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2023-11-23 21:10:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:22,414 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:10:22,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.210526315789474) internal successors, (156), 20 states have internal predecessors, (156), 10 states have call successors, (38), 7 states have call predecessors, (38), 9 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2023-11-23 21:10:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:10:22,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:10:22,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:10:22,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:22,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:22,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:10:31,521 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 985 992) no Hoare annotation was computed. [2023-11-23 21:10:31,522 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 985 992) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (= ~switchedOnBeforeTS~0 0) .cse3) (or .cse0 (not (= 2 ~waterLevel~0)) .cse1 .cse2 .cse3))) [2023-11-23 21:10:31,522 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 943 950) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~__SELECTED_FEATURE_base~0 1)) (not (= 2 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2023-11-23 21:10:31,522 INFO L899 garLoopResultBuilder]: For program point activatePump__before__methaneQueryEXIT(lines 943 950) no Hoare annotation was computed. [2023-11-23 21:10:31,522 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 1004 1012) no Hoare annotation was computed. [2023-11-23 21:10:31,522 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1004 1012) the Hoare annotation is: true [2023-11-23 21:10:31,522 INFO L895 garLoopResultBuilder]: At program point L956(line 956) the Hoare annotation is: (let ((.cse6 (= 2 ~waterLevel~0))) (let ((.cse5 (not .cse6))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and .cse5 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3) (or .cse4 .cse0 .cse5 (and (= ~pumpRunning~0 0) (= |processEnvironment__before__lowWaterSensor_processEnvironment__role__highWaterSensor_~tmp~5#1| 1)) .cse2 .cse3) (or .cse4 .cse6 .cse0 .cse1 .cse2 .cse3))))) [2023-11-23 21:10:31,522 INFO L899 garLoopResultBuilder]: For program point L956-1(line 956) no Hoare annotation was computed. [2023-11-23 21:10:31,522 INFO L895 garLoopResultBuilder]: At program point L829(line 829) the Hoare annotation is: (let ((.cse2 (not (= 2 ~waterLevel~0)))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse5 (and .cse2 (<= 2 ~waterLevel~0))) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 (not (= |old(~pumpRunning~0)| 1)) .cse3 .cse4) (or .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__before__lowWaterSensor_processEnvironment__role__highWaterSensor_~tmp~5#1| 0)) .cse1 .cse5 .cse3 .cse4)))) [2023-11-23 21:10:31,523 INFO L895 garLoopResultBuilder]: At program point L962(line 962) the Hoare annotation is: (let ((.cse6 (= 2 ~waterLevel~0))) (let ((.cse5 (not .cse6))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and .cse5 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3) (or .cse4 .cse0 .cse5 (and (= ~pumpRunning~0 0) (= |processEnvironment__before__lowWaterSensor_processEnvironment__role__highWaterSensor_~tmp~5#1| 1)) .cse2 .cse3) (or .cse4 .cse6 .cse0 .cse1 .cse2 .cse3))))) [2023-11-23 21:10:31,524 INFO L895 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,524 INFO L899 garLoopResultBuilder]: For program point L962-1(lines 951 967) no Hoare annotation was computed. [2023-11-23 21:10:31,524 INFO L899 garLoopResultBuilder]: For program point L834-1(lines 815 839) no Hoare annotation was computed. [2023-11-23 21:10:31,524 INFO L899 garLoopResultBuilder]: For program point L958(lines 958 964) no Hoare annotation was computed. [2023-11-23 21:10:31,524 INFO L899 garLoopResultBuilder]: For program point processEnvironment__before__lowWaterSensorFINAL(lines 840 856) no Hoare annotation was computed. [2023-11-23 21:10:31,524 INFO L895 garLoopResultBuilder]: At program point L979(line 979) the Hoare annotation is: (let ((.cse6 (= 2 ~waterLevel~0))) (let ((.cse5 (not .cse6))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and .cse5 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3) (or .cse4 .cse0 .cse5 (and (= ~pumpRunning~0 0) (= |processEnvironment__before__lowWaterSensor_processEnvironment__role__highWaterSensor_~tmp~5#1| 1)) .cse2 .cse3) (or .cse4 .cse6 .cse0 .cse1 .cse2 .cse3))))) [2023-11-23 21:10:31,525 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,525 INFO L899 garLoopResultBuilder]: For program point L979-1(lines 968 984) no Hoare annotation was computed. [2023-11-23 21:10:31,525 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 840 856) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,528 INFO L899 garLoopResultBuilder]: For program point processEnvironment__before__lowWaterSensorEXIT(lines 840 856) no Hoare annotation was computed. [2023-11-23 21:10:31,528 INFO L899 garLoopResultBuilder]: For program point L823(lines 823 831) no Hoare annotation was computed. [2023-11-23 21:10:31,528 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 836) no Hoare annotation was computed. [2023-11-23 21:10:31,528 INFO L899 garLoopResultBuilder]: For program point L972(lines 972 982) no Hoare annotation was computed. [2023-11-23 21:10:31,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 274 283) the Hoare annotation is: true [2023-11-23 21:10:31,528 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 274 283) no Hoare annotation was computed. [2023-11-23 21:10:31,529 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 92 103) the Hoare annotation is: true [2023-11-23 21:10:31,531 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 92 103) no Hoare annotation was computed. [2023-11-23 21:10:31,531 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1152) no Hoare annotation was computed. [2023-11-23 21:10:31,531 INFO L895 garLoopResultBuilder]: At program point L915(line 915) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse0 (= ~switchedOnBeforeTS~0 1)) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse2 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (and (<= 2 |old(~waterLevel~0)|) .cse4))) (and (or (and .cse0 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse1) .cse2 .cse3 .cse4 .cse5) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (and .cse0 (or (= 2 ~waterLevel~0) (< ~waterLevel~0 2)) .cse1) .cse3 .cse5 .cse6) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6)))) [2023-11-23 21:10:31,531 INFO L899 garLoopResultBuilder]: For program point L1138(lines 1138 1155) no Hoare annotation was computed. [2023-11-23 21:10:31,531 INFO L899 garLoopResultBuilder]: For program point L787-2(lines 783 805) no Hoare annotation was computed. [2023-11-23 21:10:31,531 INFO L899 garLoopResultBuilder]: For program point L1138-1(lines 1130 1158) no Hoare annotation was computed. [2023-11-23 21:10:31,531 INFO L895 garLoopResultBuilder]: At program point L911(line 911) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse0 (= ~switchedOnBeforeTS~0 1)) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse2 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (and (<= 2 |old(~waterLevel~0)|) .cse4))) (and (or (and .cse0 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse1) .cse2 .cse3 .cse4 .cse5) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (and .cse0 (or (= 2 ~waterLevel~0) (< ~waterLevel~0 2)) .cse1) .cse3 .cse5 .cse6) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6)))) [2023-11-23 21:10:31,532 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse0 (= ~switchedOnBeforeTS~0 1)) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse2 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (and (<= 2 |old(~waterLevel~0)|) .cse4))) (and (or (and .cse0 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse1) .cse2 .cse3 .cse4 .cse5) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (and .cse0 (or (= 2 ~waterLevel~0) (< ~waterLevel~0 2)) .cse1) .cse3 .cse5 .cse6) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6)))) [2023-11-23 21:10:31,532 INFO L899 garLoopResultBuilder]: For program point L907-1(line 907) no Hoare annotation was computed. [2023-11-23 21:10:31,532 INFO L895 garLoopResultBuilder]: At program point L920(line 920) the Hoare annotation is: (let ((.cse5 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 2 ~waterLevel~0)) (.cse4 (and (<= 2 |old(~waterLevel~0)|) .cse5)) (.cse3 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 0) (or .cse0 (< ~waterLevel~0 2)) (= ~switchedOnBeforeTS~0 0) (not .cse1)) .cse2 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3 (= ~waterLevel~0 1)) (or .cse2 .cse0 .cse3 .cse5) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse3 .cse6 .cse1 .cse4) (or .cse3 .cse6 .cse5 .cse1)))) [2023-11-23 21:10:31,532 INFO L899 garLoopResultBuilder]: For program point L920-1(lines 901 925) no Hoare annotation was computed. [2023-11-23 21:10:31,532 INFO L899 garLoopResultBuilder]: For program point L1143(lines 1143 1149) no Hoare annotation was computed. [2023-11-23 21:10:31,533 INFO L895 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: (let ((.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= 2 ~waterLevel~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~waterLevel~0 1)) (.cse3 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse8 (= ~switchedOnBeforeTS~0 1)) (.cse0 (or .cse6 (< ~waterLevel~0 2))) (.cse9 (= ~pumpRunning~0 1)) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (and (<= 2 |old(~waterLevel~0)|) .cse7))) (and (or (and (= ~pumpRunning~0 0) .cse0 (= ~switchedOnBeforeTS~0 0) (not .cse1)) .cse2 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse5) (or .cse2 .cse6 .cse3 .cse7) (or (and .cse8 (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse5) .cse9) .cse3 .cse10 .cse7 .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse3 (and .cse8 .cse0 .cse9) .cse10 .cse1 .cse4)))) [2023-11-23 21:10:31,533 INFO L899 garLoopResultBuilder]: For program point L937-1(lines 926 942) no Hoare annotation was computed. [2023-11-23 21:10:31,533 INFO L899 garLoopResultBuilder]: For program point L322(line 322) no Hoare annotation was computed. [2023-11-23 21:10:31,533 INFO L895 garLoopResultBuilder]: At program point L1140(line 1140) the Hoare annotation is: (let ((.cse5 (= ~switchedOnBeforeTS~0 0)) (.cse15 (= 2 ~waterLevel~0)) (.cse8 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (<= 2 |old(~waterLevel~0)|) .cse8)) (.cse4 (or .cse15 (< ~waterLevel~0 2))) (.cse9 (not .cse5)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse12 (= ~switchedOnBeforeTS~0 1)) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~11#1| ~waterLevel~0)) (.cse13 (= ~pumpRunning~0 1)) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (= 0 ~systemActive~0)) (.cse2 (= ~waterLevel~0 1))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 .cse1 (and .cse3 .cse4 .cse5 .cse6) .cse7) (or .cse0 .cse1 .cse8) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse9 .cse3 .cse4 .cse6) .cse1 .cse10 .cse11 .cse7 (and .cse12 .cse4 .cse6 .cse13)) (let ((.cse14 (or .cse15 .cse2))) (or (and .cse9 .cse3 .cse14 .cse6) .cse1 (and .cse14 .cse12 .cse6 .cse13) .cse10 .cse8 .cse11))))) [2023-11-23 21:10:31,533 INFO L899 garLoopResultBuilder]: For program point L1140-1(line 1140) no Hoare annotation was computed. [2023-11-23 21:10:31,534 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 917) no Hoare annotation was computed. [2023-11-23 21:10:31,534 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 780 806) the Hoare annotation is: (let ((.cse9 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse8 (= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse10 (= ~switchedOnBeforeTS~0 0)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (and (<= 2 |old(~waterLevel~0)|) .cse9)) (.cse1 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (and (or .cse0 (and (= ~switchedOnBeforeTS~0 1) .cse1 .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse9) (or (not .cse10) .cse7 .cse3 .cse5 .cse6 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse3 .cse4 .cse9 .cse5 (and .cse8 .cse2)) (or .cse0 .cse7 .cse3 .cse6 .cse10) (or .cse7 .cse3 .cse6 (and (= ~pumpRunning~0 0) .cse1))))) [2023-11-23 21:10:31,534 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 922) no Hoare annotation was computed. [2023-11-23 21:10:31,534 INFO L899 garLoopResultBuilder]: For program point L930(lines 930 940) no Hoare annotation was computed. [2023-11-23 21:10:31,534 INFO L899 garLoopResultBuilder]: For program point L794-1(lines 794 800) no Hoare annotation was computed. [2023-11-23 21:10:31,535 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 780 806) no Hoare annotation was computed. [2023-11-23 21:10:31,535 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 322) no Hoare annotation was computed. [2023-11-23 21:10:31,535 INFO L895 garLoopResultBuilder]: At program point L1125(line 1125) the Hoare annotation is: (let ((.cse9 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse8 (= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse10 (= ~switchedOnBeforeTS~0 0)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse6 (and (<= 2 |old(~waterLevel~0)|) .cse9)) (.cse1 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (and (or .cse0 (and (= ~switchedOnBeforeTS~0 1) .cse1 .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse9) (or (not .cse10) .cse7 .cse3 .cse5 .cse6 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse3 .cse4 .cse9 .cse5 (and .cse8 .cse2)) (or .cse0 .cse7 .cse3 .cse6 .cse10) (or .cse7 .cse3 .cse6 (and (= ~pumpRunning~0 0) .cse1))))) [2023-11-23 21:10:31,535 INFO L899 garLoopResultBuilder]: For program point L1125-1(line 1125) no Hoare annotation was computed. [2023-11-23 21:10:31,535 INFO L899 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2023-11-23 21:10:31,536 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 171 200) no Hoare annotation was computed. [2023-11-23 21:10:31,536 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 189) no Hoare annotation was computed. [2023-11-23 21:10:31,536 INFO L902 garLoopResultBuilder]: At program point L185-1(lines 185 189) the Hoare annotation is: true [2023-11-23 21:10:31,536 INFO L902 garLoopResultBuilder]: At program point L181-2(lines 181 195) the Hoare annotation is: true [2023-11-23 21:10:31,536 INFO L902 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: true [2023-11-23 21:10:31,536 INFO L899 garLoopResultBuilder]: For program point L177-1(line 177) no Hoare annotation was computed. [2023-11-23 21:10:31,537 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 171 200) the Hoare annotation is: true [2023-11-23 21:10:31,537 INFO L899 garLoopResultBuilder]: For program point L196(lines 171 200) no Hoare annotation was computed. [2023-11-23 21:10:31,537 INFO L902 garLoopResultBuilder]: At program point processEnvironment__before__highWaterSensorFINAL(lines 807 813) the Hoare annotation is: true [2023-11-23 21:10:31,537 INFO L899 garLoopResultBuilder]: For program point processEnvironment__before__highWaterSensorEXIT(lines 807 813) no Hoare annotation was computed. [2023-11-23 21:10:31,537 INFO L895 garLoopResultBuilder]: At program point L1093(line 1093) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~__SELECTED_FEATURE_base~0 1)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3 .cse4))) [2023-11-23 21:10:31,537 INFO L895 garLoopResultBuilder]: At program point L292(line 292) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,538 INFO L899 garLoopResultBuilder]: For program point L292-1(line 292) no Hoare annotation was computed. [2023-11-23 21:10:31,538 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 266) no Hoare annotation was computed. [2023-11-23 21:10:31,538 INFO L899 garLoopResultBuilder]: For program point L259-2(lines 259 266) no Hoare annotation was computed. [2023-11-23 21:10:31,538 INFO L895 garLoopResultBuilder]: At program point L763(lines 704 764) the Hoare annotation is: false [2023-11-23 21:10:31,538 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 757) no Hoare annotation was computed. [2023-11-23 21:10:31,538 INFO L895 garLoopResultBuilder]: At program point L747-1(lines 735 758) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0))) (let ((.cse4 (not (= 0 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~__SELECTED_FEATURE_base~0 1)) (.cse6 (or .cse0 (< ~waterLevel~0 2)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 (= ~switchedOnBeforeTS~0 1) .cse2 .cse3 .cse6 .cse4 .cse5) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse6)))) [2023-11-23 21:10:31,539 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,539 INFO L899 garLoopResultBuilder]: For program point L293-1(line 293) no Hoare annotation was computed. [2023-11-23 21:10:31,539 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 762) no Hoare annotation was computed. [2023-11-23 21:10:31,539 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 754) no Hoare annotation was computed. [2023-11-23 21:10:31,539 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2023-11-23 21:10:31,539 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2023-11-23 21:10:31,540 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:10:31,540 INFO L895 garLoopResultBuilder]: At program point L294(line 294) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,540 INFO L899 garLoopResultBuilder]: For program point L294-1(line 294) no Hoare annotation was computed. [2023-11-23 21:10:31,540 INFO L895 garLoopResultBuilder]: At program point L295(line 295) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,540 INFO L899 garLoopResultBuilder]: For program point L295-1(line 295) no Hoare annotation was computed. [2023-11-23 21:10:31,541 INFO L899 garLoopResultBuilder]: For program point L766(lines 695 770) no Hoare annotation was computed. [2023-11-23 21:10:31,541 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2023-11-23 21:10:31,541 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2023-11-23 21:10:31,541 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0))) (let ((.cse5 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~__SELECTED_FEATURE_base~0 1)) (.cse6 (or .cse0 (< ~waterLevel~0 2))) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 (= ~switchedOnBeforeTS~0 1) .cse2 .cse3 .cse6 .cse4 .cse5) (and .cse7 .cse1 (or .cse0 (= ~waterLevel~0 1)) .cse2 .cse3) (and .cse7 .cse1 .cse2 .cse3 .cse6 (= ~switchedOnBeforeTS~0 0)) (and .cse7 .cse1 .cse2 .cse3 .cse6 .cse4)))) [2023-11-23 21:10:31,541 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:10:31,541 INFO L899 garLoopResultBuilder]: For program point L735(lines 735 758) no Hoare annotation was computed. [2023-11-23 21:10:31,542 INFO L895 garLoopResultBuilder]: At program point L760(lines 705 762) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0))) (let ((.cse5 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~__SELECTED_FEATURE_base~0 1)) (.cse6 (or .cse0 (< ~waterLevel~0 2))) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 (= ~switchedOnBeforeTS~0 1) .cse2 .cse3 .cse6 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse6 (= ~switchedOnBeforeTS~0 0)) (and .cse7 .cse1 .cse2 .cse3 .cse6 .cse4)))) [2023-11-23 21:10:31,542 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0))) (let ((.cse5 (= ~pumpRunning~0 1)) (.cse6 (or .cse0 (< ~waterLevel~0 2))) (.cse4 (not (= 0 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~__SELECTED_FEATURE_base~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 (= ~switchedOnBeforeTS~0 1) .cse2 .cse3 .cse6 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse6 (= ~switchedOnBeforeTS~0 0)) (and .cse7 .cse1 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse3)))) [2023-11-23 21:10:31,542 INFO L899 garLoopResultBuilder]: For program point L1091(lines 1091 1097) no Hoare annotation was computed. [2023-11-23 21:10:31,542 INFO L895 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,542 INFO L899 garLoopResultBuilder]: For program point L1091-1(lines 1091 1097) no Hoare annotation was computed. [2023-11-23 21:10:31,543 INFO L899 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2023-11-23 21:10:31,543 INFO L895 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~__SELECTED_FEATURE_base~0 1) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0))) [2023-11-23 21:10:31,543 INFO L899 garLoopResultBuilder]: For program point L291-1(line 291) no Hoare annotation was computed. [2023-11-23 21:10:31,543 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 80 91) no Hoare annotation was computed. [2023-11-23 21:10:31,543 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 80 91) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (not (= ~pumpRunning~0 1))) (.cse7 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0)) (.cse6 (= ~waterLevel~0 1)) (.cse9 (and (<= 2 |old(~waterLevel~0)|) .cse3))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse6) (or .cse5 .cse0 .cse1 .cse3) (or .cse1 .cse2 .cse7 .cse8 .cse4 .cse6 .cse9) (or .cse5 .cse1 .cse7 .cse8 .cse6 .cse9) (or .cse5 .cse1 .cse8 .cse4 .cse6 .cse9)))) [2023-11-23 21:10:31,544 INFO L895 garLoopResultBuilder]: At program point L894(line 894) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,544 INFO L899 garLoopResultBuilder]: For program point processEnvironment__before__methaneAlarmEXIT(lines 883 899) no Hoare annotation was computed. [2023-11-23 21:10:31,544 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 883 899) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,544 INFO L895 garLoopResultBuilder]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,544 INFO L895 garLoopResultBuilder]: At program point L868(line 868) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-23 21:10:31,545 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 874) no Hoare annotation was computed. [2023-11-23 21:10:31,545 INFO L899 garLoopResultBuilder]: For program point processEnvironment__before__methaneAlarmFINAL(lines 883 899) no Hoare annotation was computed. [2023-11-23 21:10:31,545 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 879) no Hoare annotation was computed. [2023-11-23 21:10:31,545 INFO L895 garLoopResultBuilder]: At program point L877(line 877) the Hoare annotation is: (let ((.cse0 (not (= ~__SELECTED_FEATURE_base~0 1))) (.cse1 (and (not (= 2 ~waterLevel~0)) (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2023-11-23 21:10:31,545 INFO L899 garLoopResultBuilder]: For program point L877-1(lines 858 882) no Hoare annotation was computed. [2023-11-23 21:10:31,546 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 993 1003) no Hoare annotation was computed. [2023-11-23 21:10:31,546 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 993 1003) the Hoare annotation is: true [2023-11-23 21:10:31,549 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:31,551 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:10:31,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:10:31 BoogieIcfgContainer [2023-11-23 21:10:31,565 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:10:31,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:10:31,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:10:31,566 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:10:31,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:51" (3/4) ... [2023-11-23 21:10:31,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:10:31,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-23 21:10:31,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__before__methaneQuery [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__lowWaterSensor [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure select_one [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:10:31,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__highWaterSensor [2023-11-23 21:10:31,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:10:31,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__methaneAlarm [2023-11-23 21:10:31,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-23 21:10:31,586 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2023-11-23 21:10:31,587 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:10:31,588 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:10:31,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:10:31,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:10:31,741 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:10:31,742 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:10:31,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:10:31,743 INFO L158 Benchmark]: Toolchain (without parser) took 42137.73ms. Allocated memory was 125.8MB in the beginning and 702.5MB in the end (delta: 576.7MB). Free memory was 87.5MB in the beginning and 617.2MB in the end (delta: -529.8MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,744 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:31,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.32ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 66.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.76ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,745 INFO L158 Benchmark]: Boogie Preprocessor took 40.73ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,745 INFO L158 Benchmark]: RCFGBuilder took 854.85ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 61.9MB in the beginning and 115.5MB in the end (delta: -53.7MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,746 INFO L158 Benchmark]: TraceAbstraction took 40403.43ms. Allocated memory was 157.3MB in the beginning and 702.5MB in the end (delta: 545.3MB). Free memory was 115.2MB in the beginning and 626.7MB in the end (delta: -511.4MB). Peak memory consumption was 419.7MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,747 INFO L158 Benchmark]: Witness Printer took 176.87ms. Allocated memory is still 702.5MB. Free memory was 626.7MB in the beginning and 617.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:10:31,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.32ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 66.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.76ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.73ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 854.85ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 61.9MB in the beginning and 115.5MB in the end (delta: -53.7MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 40403.43ms. Allocated memory was 157.3MB in the beginning and 702.5MB in the end (delta: 545.3MB). Free memory was 115.2MB in the beginning and 626.7MB in the end (delta: -511.4MB). Peak memory consumption was 419.7MB. Max. memory is 16.1GB. * Witness Printer took 176.87ms. Allocated memory is still 702.5MB. Free memory was 626.7MB in the beginning and 617.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 168]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] - GenericResultAtLocation [Line: 272]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [272] - GenericResultAtLocation [Line: 317]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [317] - GenericResultAtLocation [Line: 326]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [326] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [692] - GenericResultAtLocation [Line: 771]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [771] - GenericResultAtLocation [Line: 1110]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [1110] * 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: 322]: 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 13 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.3s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2752 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2724 mSDsluCounter, 4666 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3493 mSDsCounter, 1339 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3737 IncrementalHoareTripleChecker+Invalid, 5076 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1339 mSolverCounterUnsat, 1173 mSDtfsCounter, 3737 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 756 GetRequests, 563 SyntacticMatches, 2 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5914 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=665occurred in iteration=7, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 240 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1782 PreInvPairs, 1932 NumberOfFragments, 2476 HoareAnnotationTreeSize, 1782 FomulaSimplifications, 7753 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 44 FomulaSimplificationsInter, 25392 FormulaSimplificationTreeSizeReductionInter, 8.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 925 NumberOfCodeBlocks, 852 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1063 ConstructedInterpolants, 0 QuantifiedInterpolants, 2192 SizeOfPredicates, 13 NumberOfNonLiveVariables, 804 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 842/892 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: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 993]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: (((((((((2 == waterLevel) && (tmp == 1)) && (splverifierCounter == 0)) && (__SELECTED_FEATURE_base == 1)) && !((0 == systemActive))) && (pumpRunning == 1)) || (((((((tmp == 1) && (switchedOnBeforeTS == 1)) && (splverifierCounter == 0)) && (__SELECTED_FEATURE_base == 1)) && ((2 == waterLevel) || (waterLevel < 2))) && !((0 == systemActive))) && (pumpRunning == 1))) || ((((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (__SELECTED_FEATURE_base == 1)) && ((2 == waterLevel) || (waterLevel < 2))) && (switchedOnBeforeTS == 0))) || ((((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (__SELECTED_FEATURE_base == 1)) && ((2 == waterLevel) || (waterLevel < 2))) && !((0 == systemActive)))) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 21:10:31,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68cc92b-73cc-4a93-9529-f91515810a46/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