./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.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_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/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_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/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_14deae07-387e-4c45-b1b5-7496f0772ffe/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 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:34,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:34,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:27:34,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:34,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:34,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:34,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:34,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:34,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:34,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:34,674 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:34,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:34,675 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:34,676 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:34,676 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:34,677 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:34,678 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:34,678 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:34,679 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:34,680 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:34,680 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:34,681 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:34,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:34,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:34,683 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:34,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:34,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:34,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:34,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:34,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:34,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:34,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:34,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:34,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:34,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:34,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:34,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:34,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:34,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:34,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:34,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:34,690 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:34,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:34,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:34,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:34,691 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:34,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:34,691 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_14deae07-387e-4c45-b1b5-7496f0772ffe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2023-11-23 21:27:35,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:35,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:35,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:35,065 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:35,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:35,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2023-11-23 21:27:38,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:38,498 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:38,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2023-11-23 21:27:38,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/data/e41dd3861/caa93d02fdd942bea932ca5f538e6385/FLAG49f72d1f3 [2023-11-23 21:27:38,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/data/e41dd3861/caa93d02fdd942bea932ca5f538e6385 [2023-11-23 21:27:38,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:38,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:38,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:38,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:38,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:38,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:38" (1/1) ... [2023-11-23 21:27:38,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c5031d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:38, skipping insertion in model container [2023-11-23 21:27:38,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:38" (1/1) ... [2023-11-23 21:27:38,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:38,892 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_14deae07-387e-4c45-b1b5-7496f0772ffe/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2023-11-23 21:27:39,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:39,048 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:39,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2023-11-23 21:27:39,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] [2023-11-23 21:27:39,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [206] [2023-11-23 21:27:39,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [215] [2023-11-23 21:27:39,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [250] [2023-11-23 21:27:39,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] [2023-11-23 21:27:39,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] [2023-11-23 21:27:39,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] [2023-11-23 21:27:39,103 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_14deae07-387e-4c45-b1b5-7496f0772ffe/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2023-11-23 21:27:39,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:39,224 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:39,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39 WrapperNode [2023-11-23 21:27:39,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:39,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:39,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:39,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:39,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,306 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 201 [2023-11-23 21:27:39,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:39,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:39,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:39,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:39,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:39,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:39,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:39,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:39,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (1/1) ... [2023-11-23 21:27:39,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:39,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:39,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:39,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 21:27:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 21:27:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:27:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:27:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:27:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:27:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:27:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:27:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-23 21:27:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-23 21:27:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:27:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:27:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:39,566 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:39,568 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:39,883 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:40,097 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:40,097 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:27:40,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:40 BoogieIcfgContainer [2023-11-23 21:27:40,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:40,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:40,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:40,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:40,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:38" (1/3) ... [2023-11-23 21:27:40,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c618961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:40, skipping insertion in model container [2023-11-23 21:27:40,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:39" (2/3) ... [2023-11-23 21:27:40,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c618961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:40, skipping insertion in model container [2023-11-23 21:27:40,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:40" (3/3) ... [2023-11-23 21:27:40,118 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2023-11-23 21:27:40,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:40,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:40,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:40,201 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;@6048a6f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:40,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:27:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:27:40,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:40,219 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:40,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:40,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1498463534, now seen corresponding path program 1 times [2023-11-23 21:27:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660338217] [2023-11-23 21:27:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:27:40,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:40,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660338217] [2023-11-23 21:27:40,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660338217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:40,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:40,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042007333] [2023-11-23 21:27:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:40,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:27:40,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:27:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:27:40,476 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:27:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:40,554 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-11-23 21:27:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:27:40,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-23 21:27:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:40,571 INFO L225 Difference]: With dead ends: 100 [2023-11-23 21:27:40,572 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:27:40,578 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 21:27:40,585 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:40,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:27:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:27:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:27:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:27:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-23 21:27:40,659 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-11-23 21:27:40,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:40,661 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-23 21:27:40,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:27:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-23 21:27:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 21:27:40,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:40,667 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:40,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:27:40,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:40,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:40,671 INFO L85 PathProgramCache]: Analyzing trace with hash 943925011, now seen corresponding path program 1 times [2023-11-23 21:27:40,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241088800] [2023-11-23 21:27:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:27:41,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241088800] [2023-11-23 21:27:41,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241088800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:41,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:41,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:27:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269275088] [2023-11-23 21:27:41,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:41,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:27:41,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:41,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:27:41,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:27:41,252 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:27:42,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:42,026 INFO L93 Difference]: Finished difference Result 193 states and 279 transitions. [2023-11-23 21:27:42,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:27:42,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-11-23 21:27:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:42,030 INFO L225 Difference]: With dead ends: 193 [2023-11-23 21:27:42,031 INFO L226 Difference]: Without dead ends: 108 [2023-11-23 21:27:42,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:27:42,036 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:42,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 397 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:27:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-23 21:27:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2023-11-23 21:27:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 76 states have internal predecessors, (82), 24 states have call successors, (24), 16 states have call predecessors, (24), 13 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) [2023-11-23 21:27:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2023-11-23 21:27:42,069 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 24 [2023-11-23 21:27:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:42,070 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2023-11-23 21:27:42,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:27:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2023-11-23 21:27:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 21:27:42,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:42,073 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:42,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:27:42,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:42,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash 267859282, now seen corresponding path program 1 times [2023-11-23 21:27:42,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:42,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416901308] [2023-11-23 21:27:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:42,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:27:42,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416901308] [2023-11-23 21:27:42,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416901308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:42,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:42,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:27:42,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729307467] [2023-11-23 21:27:42,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:42,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:27:42,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:42,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:27:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:27:42,447 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:27:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:42,592 INFO L93 Difference]: Finished difference Result 266 states and 372 transitions. [2023-11-23 21:27:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:27:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-23 21:27:42,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:42,607 INFO L225 Difference]: With dead ends: 266 [2023-11-23 21:27:42,607 INFO L226 Difference]: Without dead ends: 152 [2023-11-23 21:27:42,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:27:42,619 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 57 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:42,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 123 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:42,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-23 21:27:42,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-11-23 21:27:42,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.21875) internal successors, (117), 107 states have internal predecessors, (117), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-11-23 21:27:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2023-11-23 21:27:42,692 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 27 [2023-11-23 21:27:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:42,693 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2023-11-23 21:27:42,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:27:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2023-11-23 21:27:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:27:42,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:42,699 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:42,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:27:42,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:42,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash -914596767, now seen corresponding path program 1 times [2023-11-23 21:27:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:42,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204923082] [2023-11-23 21:27:42,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:42,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:27:43,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:43,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204923082] [2023-11-23 21:27:43,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204923082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:43,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:43,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:27:43,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078492933] [2023-11-23 21:27:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:43,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:27:43,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:43,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:27:43,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:27:43,243 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:27:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:43,807 INFO L93 Difference]: Finished difference Result 396 states and 572 transitions. [2023-11-23 21:27:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:27:43,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-11-23 21:27:43,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:43,813 INFO L225 Difference]: With dead ends: 396 [2023-11-23 21:27:43,813 INFO L226 Difference]: Without dead ends: 152 [2023-11-23 21:27:43,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:27:43,828 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 121 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:43,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 377 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:27:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-23 21:27:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-11-23 21:27:43,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 107 states have internal predecessors, (116), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-11-23 21:27:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-11-23 21:27:43,892 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 30 [2023-11-23 21:27:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:43,894 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-11-23 21:27:43,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:27:43,895 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-11-23 21:27:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 21:27:43,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:43,903 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 21:27:43,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:27:43,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:43,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash 337532075, now seen corresponding path program 1 times [2023-11-23 21:27:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419432399] [2023-11-23 21:27:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:27:44,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:44,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419432399] [2023-11-23 21:27:44,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419432399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:44,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:44,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:27:44,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069103024] [2023-11-23 21:27:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:44,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:27:44,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:27:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:27:44,184 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:27:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:44,297 INFO L93 Difference]: Finished difference Result 280 states and 383 transitions. [2023-11-23 21:27:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:27:44,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2023-11-23 21:27:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:44,300 INFO L225 Difference]: With dead ends: 280 [2023-11-23 21:27:44,300 INFO L226 Difference]: Without dead ends: 148 [2023-11-23 21:27:44,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:27:44,303 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 45 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:44,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 76 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-23 21:27:44,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-23 21:27:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.1875) internal successors, (114), 107 states have internal predecessors, (114), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-11-23 21:27:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 193 transitions. [2023-11-23 21:27:44,378 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 193 transitions. Word has length 47 [2023-11-23 21:27:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:44,379 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 193 transitions. [2023-11-23 21:27:44,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:27:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 193 transitions. [2023-11-23 21:27:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:27:44,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:44,384 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 21:27:44,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:27:44,384 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:44,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash 463731573, now seen corresponding path program 1 times [2023-11-23 21:27:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:44,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261325385] [2023-11-23 21:27:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:27:44,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:44,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261325385] [2023-11-23 21:27:44,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261325385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:44,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:44,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:27:44,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357641486] [2023-11-23 21:27:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:44,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:27:44,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:27:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:27:44,710 INFO L87 Difference]: Start difference. First operand 148 states and 193 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 21:27:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:44,997 INFO L93 Difference]: Finished difference Result 302 states and 423 transitions. [2023-11-23 21:27:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:27:44,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2023-11-23 21:27:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:45,005 INFO L225 Difference]: With dead ends: 302 [2023-11-23 21:27:45,006 INFO L226 Difference]: Without dead ends: 168 [2023-11-23 21:27:45,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:27:45,008 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:45,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 126 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:27:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-23 21:27:45,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2023-11-23 21:27:45,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 107 states have internal predecessors, (113), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-11-23 21:27:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2023-11-23 21:27:45,054 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 53 [2023-11-23 21:27:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:45,057 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2023-11-23 21:27:45,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 21:27:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2023-11-23 21:27:45,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 21:27:45,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:45,060 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-11-23 21:27:45,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:27:45,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:45,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash 8985748, now seen corresponding path program 1 times [2023-11-23 21:27:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:45,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393517458] [2023-11-23 21:27:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:27:45,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:45,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393517458] [2023-11-23 21:27:45,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393517458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:27:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340241748] [2023-11-23 21:27:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:45,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:45,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:45,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:27:45,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:27:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:45,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 21:27:45,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 21:27:46,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:27:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 21:27:47,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340241748] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:27:47,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [369272789] [2023-11-23 21:27:47,152 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-23 21:27:47,152 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:27:47,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:27:47,163 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:27:47,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:27:50,579 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 137 for LOIs [2023-11-23 21:27:50,734 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2023-11-23 21:27:51,673 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 78 for LOIs [2023-11-23 21:27:51,793 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 41 for LOIs [2023-11-23 21:27:51,816 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:27:57,310 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3758#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (or (= |timeShift_isHighWaterLevel_#res#1| 0) (and (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isHighWaterSensorDry_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0) (= ~pumpRunning~0 1))) (<= 0 |timeShift_isHighWaterLevel_#res#1|) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_isHighWaterSensorDry_#res#1| 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (= |old(~pumpRunning~0)| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= ~switchedOnBeforeTS~0 0) (= ~cleanupTimeShifts~0 4) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483648)) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2023-11-23 21:27:57,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:27:57,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:27:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2023-11-23 21:27:57,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548456714] [2023-11-23 21:27:57,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:27:57,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 21:27:57,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:57,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 21:27:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1683, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 21:27:57,315 INFO L87 Difference]: Start difference. First operand 148 states and 192 transitions. Second operand has 19 states, 16 states have (on average 5.3125) internal successors, (85), 19 states have internal predecessors, (85), 9 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2023-11-23 21:27:57,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:57,953 INFO L93 Difference]: Finished difference Result 221 states and 302 transitions. [2023-11-23 21:27:57,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:27:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.3125) internal successors, (85), 19 states have internal predecessors, (85), 9 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) Word has length 58 [2023-11-23 21:27:57,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:57,955 INFO L225 Difference]: With dead ends: 221 [2023-11-23 21:27:57,955 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:27:57,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=309, Invalid=2241, Unknown=0, NotChecked=0, Total=2550 [2023-11-23 21:27:57,958 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 160 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:57,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 290 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:27:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:27:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:27:57,959 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 21:27:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:27:57,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2023-11-23 21:27:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:57,960 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:27:57,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.3125) internal successors, (85), 19 states have internal predecessors, (85), 9 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2023-11-23 21:27:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:27:57,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:27:57,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:57,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:58,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 21:27:58,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:27:59,628 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2023-11-23 21:27:59,629 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2023-11-23 21:27:59,629 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 647 658) the Hoare annotation is: true [2023-11-23 21:27:59,629 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2023-11-23 21:27:59,629 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2023-11-23 21:27:59,629 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-23 21:27:59,629 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse2 (= ~switchedOnBeforeTS~0 0)) (.cse1 (= 0 ~systemActive~0)) (.cse3 (= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) (and .cse3 (<= ~waterLevel~0 1) .cse4)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse2) .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~switchedOnBeforeTS~0)| 0)) (or (and (= 2 ~waterLevel~0) .cse3 .cse4) .cse0))) [2023-11-23 21:27:59,630 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= 0 ~systemActive~0)) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (= 2 ~waterLevel~0) .cse0) .cse1 .cse2) (or .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and (= ~waterLevel~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 1))) (or (and (<= ~waterLevel~0 1) .cse0) (< 1 |old(~waterLevel~0)|) .cse2) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-11-23 21:27:59,630 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-11-23 21:27:59,630 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0) .cse0) (or (< 1 |old(~waterLevel~0)|) .cse0))) [2023-11-23 21:27:59,630 INFO L899 garLoopResultBuilder]: For program point L842-1(lines 823 847) no Hoare annotation was computed. [2023-11-23 21:27:59,630 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-23 21:27:59,630 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 788 814) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not .cse7)) (.cse6 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 .cse5 .cse4 .cse6 .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse7 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or .cse5 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) .cse6)))) [2023-11-23 21:27:59,630 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not .cse7)) (.cse6 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 .cse5 .cse4 .cse6 .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse7 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or .cse5 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) .cse6)))) [2023-11-23 21:27:59,630 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2023-11-23 21:27:59,631 INFO L899 garLoopResultBuilder]: For program point L802-1(lines 802 808) no Hoare annotation was computed. [2023-11-23 21:27:59,631 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 839) no Hoare annotation was computed. [2023-11-23 21:27:59,631 INFO L899 garLoopResultBuilder]: For program point L827(lines 827 844) no Hoare annotation was computed. [2023-11-23 21:27:59,631 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point L80-1(lines 72 100) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point L129(lines 104 133) no Hoare annotation was computed. [2023-11-23 21:27:59,632 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2023-11-23 21:27:59,633 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2023-11-23 21:27:59,633 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2023-11-23 21:27:59,633 INFO L895 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (<= ~waterLevel~0 1) .cse1) (< 1 |old(~waterLevel~0)|) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-11-23 21:27:59,633 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (<= ~waterLevel~0 1) .cse1) (< 1 |old(~waterLevel~0)|) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-11-23 21:27:59,633 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 (not .cse5) .cse4 (= 0 ~systemActive~0) .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse5 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)))) [2023-11-23 21:27:59,634 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-11-23 21:27:59,634 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 133) the Hoare annotation is: (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 (not .cse5) .cse4 (= 0 ~systemActive~0) .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse5 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)))) [2023-11-23 21:27:59,634 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2023-11-23 21:27:59,634 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 746 752) no Hoare annotation was computed. [2023-11-23 21:27:59,634 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-11-23 21:27:59,635 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1)) [2023-11-23 21:27:59,635 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 200) no Hoare annotation was computed. [2023-11-23 21:27:59,635 INFO L899 garLoopResultBuilder]: For program point L193-2(lines 193 200) no Hoare annotation was computed. [2023-11-23 21:27:59,635 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:27:59,635 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-11-23 21:27:59,636 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2023-11-23 21:27:59,636 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-11-23 21:27:59,636 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:27:59,636 INFO L899 garLoopResultBuilder]: For program point L777(lines 716 781) no Hoare annotation was computed. [2023-11-23 21:27:59,636 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2023-11-23 21:27:59,636 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2023-11-23 21:27:59,637 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: (or (= 2 ~waterLevel~0) (< ~waterLevel~0 2) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-11-23 21:27:59,637 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2023-11-23 21:27:59,637 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 635 646) the Hoare annotation is: (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2))) (or (= ~pumpRunning~0 0) (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-11-23 21:27:59,637 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2023-11-23 21:27:59,637 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 893 901) the Hoare annotation is: true [2023-11-23 21:27:59,640 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:59,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:59,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:59 BoogieIcfgContainer [2023-11-23 21:27:59,661 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:59,662 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:59,662 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:59,662 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:59,663 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:40" (3/4) ... [2023-11-23 21:27:59,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:27:59,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 21:27:59,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:27:59,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:27:59,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:27:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:27:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-23 21:27:59,689 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-11-23 21:27:59,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:27:59,691 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:27:59,691 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:27:59,692 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:27:59,716 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) [2023-11-23 21:27:59,770 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) [2023-11-23 21:27:59,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:27:59,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:27:59,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:59,828 INFO L158 Benchmark]: Toolchain (without parser) took 21295.45ms. Allocated memory was 167.8MB in the beginning and 375.4MB in the end (delta: 207.6MB). Free memory was 93.7MB in the beginning and 183.0MB in the end (delta: -89.3MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,828 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:59,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.60ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 120.5MB in the end (delta: -27.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.54ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 117.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,829 INFO L158 Benchmark]: Boogie Preprocessor took 53.75ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 116.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:59,830 INFO L158 Benchmark]: RCFGBuilder took 734.11ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 88.4MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,830 INFO L158 Benchmark]: TraceAbstraction took 19559.24ms. Allocated memory was 167.8MB in the beginning and 375.4MB in the end (delta: 207.6MB). Free memory was 87.9MB in the beginning and 190.4MB in the end (delta: -102.5MB). Peak memory consumption was 106.3MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,831 INFO L158 Benchmark]: Witness Printer took 165.32ms. Allocated memory is still 375.4MB. Free memory was 190.4MB in the beginning and 183.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:27:59,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.60ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 120.5MB in the end (delta: -27.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.54ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 117.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.75ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 116.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 734.11ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 88.4MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19559.24ms. Allocated memory was 167.8MB in the beginning and 375.4MB in the end (delta: 207.6MB). Free memory was 87.9MB in the beginning and 190.4MB in the end (delta: -102.5MB). Peak memory consumption was 106.3MB. Max. memory is 16.1GB. * Witness Printer took 165.32ms. Allocated memory is still 375.4MB. Free memory was 190.4MB in the beginning and 183.0MB in the end (delta: 7.3MB). 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] - GenericResultAtLocation [Line: 206]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [206] - GenericResultAtLocation [Line: 215]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [215] - GenericResultAtLocation [Line: 250]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [250] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] - GenericResultAtLocation [Line: 782]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] * 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: 211]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.5s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 576 mSDsluCounter, 1438 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1047 mSDsCounter, 308 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1424 IncrementalHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 308 mSolverCounterUnsat, 391 mSDtfsCounter, 1424 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 613 PreInvPairs, 831 NumberOfFragments, 799 HoareAnnotationTreeSize, 613 FomulaSimplifications, 848 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 2075 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1664 SizeOfPredicates, 7 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 115/142 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: 725]: Loop Invariant Derived loop invariant: (((2 == waterLevel) || (waterLevel < 2)) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((2 == waterLevel) || ((((pumpRunning == 0) && (1 == systemActive)) && (tmp == 1)) && (waterLevel == 1))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:27:59,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14deae07-387e-4c45-b1b5-7496f0772ffe/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