./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E --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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:44:58,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:44:58,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:44:58,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:44:58,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:44:58,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:44:58,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:44:58,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:44:58,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:44:58,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:44:58,940 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:44:58,941 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:44:58,941 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:44:58,942 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:44:58,942 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:44:58,942 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:44:58,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:44:58,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:44:58,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:44:58,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:44:58,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:44:58,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:44:58,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:44:58,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:44:58,945 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:44:58,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:44:58,945 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E 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 -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2024-11-14 05:44:59,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:44:59,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:44:59,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:44:59,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:44:59,261 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:44:59,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c Unable to find full path for "g++" [2024-11-14 05:45:01,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:45:01,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:45:01,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2024-11-14 05:45:01,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/data/749b4464b/3a1f36f6219c438385de7c69b7959e2a/FLAG2fda87864 [2024-11-14 05:45:01,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/data/749b4464b/3a1f36f6219c438385de7c69b7959e2a [2024-11-14 05:45:01,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:45:01,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:45:01,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:01,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:45:01,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:45:01,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:01" (1/1) ... [2024-11-14 05:45:01,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b96ccb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:01, skipping insertion in model container [2024-11-14 05:45:01,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:01" (1/1) ... [2024-11-14 05:45:01,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:45:02,118 WARN L250 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_d25f843e-2a75-423f-83a1-b8da55d8a891/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2024-11-14 05:45:02,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:02,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:45:02,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-14 05:45:02,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [415] [2024-11-14 05:45:02,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] [2024-11-14 05:45:02,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] [2024-11-14 05:45:02,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [557] [2024-11-14 05:45:02,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2024-11-14 05:45:02,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] [2024-11-14 05:45:02,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [908] [2024-11-14 05:45:02,251 WARN L250 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_d25f843e-2a75-423f-83a1-b8da55d8a891/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2024-11-14 05:45:02,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:02,287 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:45:02,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02 WrapperNode [2024-11-14 05:45:02,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:02,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:02,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:45:02,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:45:02,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,328 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 206 [2024-11-14 05:45:02,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:02,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:45:02,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:45:02,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:45:02,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:45:02,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:45:02,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:45:02,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:45:02,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (1/1) ... [2024-11-14 05:45:02,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:02,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:02,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:45:02,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:45:02,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:45:02,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-14 05:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-14 05:45:02,441 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-14 05:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-14 05:45:02,441 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-14 05:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-14 05:45:02,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-14 05:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-14 05:45:02,442 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-14 05:45:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-14 05:45:02,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:45:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-14 05:45:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-14 05:45:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:45:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:45:02,543 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:45:02,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:45:02,834 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-14 05:45:02,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:45:02,990 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:45:02,992 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:45:02,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:45:02 BoogieIcfgContainer [2024-11-14 05:45:02,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:45:02,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:45:02,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:45:03,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:45:03,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:45:01" (1/3) ... [2024-11-14 05:45:03,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af6b674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:45:03, skipping insertion in model container [2024-11-14 05:45:03,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:02" (2/3) ... [2024-11-14 05:45:03,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af6b674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:45:03, skipping insertion in model container [2024-11-14 05:45:03,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:45:02" (3/3) ... [2024-11-14 05:45:03,006 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2024-11-14 05:45:03,027 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:45:03,031 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product50.cil.c that has 7 procedures, 51 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-14 05:45:03,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:45:03,125 INFO L333 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, 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;@38d306b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:45:03,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:45:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 41 states have internal predecessors, (48), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 05:45:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:45:03,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:03,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:03,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:03,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash -76401781, now seen corresponding path program 1 times [2024-11-14 05:45:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160255642] [2024-11-14 05:45:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:03,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160255642] [2024-11-14 05:45:03,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160255642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:03,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:03,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:45:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023088707] [2024-11-14 05:45:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:03,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:45:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:03,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:45:03,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:45:03,344 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 41 states have internal predecessors, (48), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:03,420 INFO L93 Difference]: Finished difference Result 100 states and 137 transitions. [2024-11-14 05:45:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:45:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 05:45:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:03,435 INFO L225 Difference]: With dead ends: 100 [2024-11-14 05:45:03,436 INFO L226 Difference]: Without dead ends: 46 [2024-11-14 05:45:03,439 INFO L431 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 [2024-11-14 05:45:03,445 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:03,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:45:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-14 05:45:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-14 05:45:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:45:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-14 05:45:03,493 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 12 [2024-11-14 05:45:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:03,493 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-14 05:45:03,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-14 05:45:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:45:03,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:03,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:03,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:45:03,496 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:03,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2129051588, now seen corresponding path program 1 times [2024-11-14 05:45:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:03,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202644335] [2024-11-14 05:45:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:03,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:03,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202644335] [2024-11-14 05:45:03,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202644335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:03,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:03,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:45:03,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167652790] [2024-11-14 05:45:03,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:03,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:45:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:03,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:45:03,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:45:03,671 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:03,745 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2024-11-14 05:45:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:45:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:45:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:03,747 INFO L225 Difference]: With dead ends: 69 [2024-11-14 05:45:03,747 INFO L226 Difference]: Without dead ends: 38 [2024-11-14 05:45:03,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:45:03,748 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:03,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:45:03,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-14 05:45:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-14 05:45:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.36) internal successors, (34), 32 states have internal predecessors, (34), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:45:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2024-11-14 05:45:03,764 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 13 [2024-11-14 05:45:03,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:03,764 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2024-11-14 05:45:03,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2024-11-14 05:45:03,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:45:03,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:03,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:03,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:45:03,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:03,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash -498214588, now seen corresponding path program 1 times [2024-11-14 05:45:03,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:03,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941510540] [2024-11-14 05:45:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:03,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:04,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941510540] [2024-11-14 05:45:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941510540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:04,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:04,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:45:04,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317039770] [2024-11-14 05:45:04,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:04,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:45:04,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:04,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:45:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:45:04,085 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:04,272 INFO L93 Difference]: Finished difference Result 123 states and 158 transitions. [2024-11-14 05:45:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:45:04,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-14 05:45:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:04,276 INFO L225 Difference]: With dead ends: 123 [2024-11-14 05:45:04,276 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 05:45:04,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:45:04,278 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 44 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:04,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 142 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:45:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 05:45:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 72. [2024-11-14 05:45:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 58 states have internal predecessors, (62), 11 states have call successors, (11), 9 states have call predecessors, (11), 11 states have return successors, (13), 10 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-14 05:45:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2024-11-14 05:45:04,308 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 15 [2024-11-14 05:45:04,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:04,309 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2024-11-14 05:45:04,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:45:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2024-11-14 05:45:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:45:04,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:04,310 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:04,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:45:04,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:04,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1584905026, now seen corresponding path program 1 times [2024-11-14 05:45:04,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:04,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329717667] [2024-11-14 05:45:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:04,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:04,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329717667] [2024-11-14 05:45:04,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329717667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:04,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:04,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:45:04,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7799316] [2024-11-14 05:45:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:04,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:45:04,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:45:04,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:45:04,477 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:45:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:04,596 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2024-11-14 05:45:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:45:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-14 05:45:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:04,599 INFO L225 Difference]: With dead ends: 136 [2024-11-14 05:45:04,601 INFO L226 Difference]: Without dead ends: 100 [2024-11-14 05:45:04,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:45:04,603 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:04,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 99 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:45:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-14 05:45:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-14 05:45:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 78 states have internal predecessors, (86), 14 states have call successors, (14), 14 states have call predecessors, (14), 16 states have return successors, (20), 15 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-14 05:45:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2024-11-14 05:45:04,635 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 18 [2024-11-14 05:45:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:04,636 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2024-11-14 05:45:04,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:45:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2024-11-14 05:45:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:45:04,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:04,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:04,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:45:04,641 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:04,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash 380652696, now seen corresponding path program 1 times [2024-11-14 05:45:04,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:04,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310470164] [2024-11-14 05:45:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:05,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:05,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310470164] [2024-11-14 05:45:05,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310470164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:05,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:05,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:45:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284667669] [2024-11-14 05:45:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:05,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:45:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:45:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:45:05,004 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:45:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:05,488 INFO L93 Difference]: Finished difference Result 251 states and 316 transitions. [2024-11-14 05:45:05,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:45:05,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-11-14 05:45:05,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:05,494 INFO L225 Difference]: With dead ends: 251 [2024-11-14 05:45:05,494 INFO L226 Difference]: Without dead ends: 187 [2024-11-14 05:45:05,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:45:05,496 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 175 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:05,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 166 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:45:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-14 05:45:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 168. [2024-11-14 05:45:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 116 states have (on average 1.25) internal successors, (145), 132 states have internal predecessors, (145), 24 states have call successors, (24), 22 states have call predecessors, (24), 27 states have return successors, (35), 26 states have call predecessors, (35), 24 states have call successors, (35) [2024-11-14 05:45:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2024-11-14 05:45:05,528 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 26 [2024-11-14 05:45:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:05,529 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2024-11-14 05:45:05,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:45:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2024-11-14 05:45:05,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 05:45:05,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:05,530 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:45:05,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:45:05,531 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:05,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash 978163262, now seen corresponding path program 1 times [2024-11-14 05:45:05,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:05,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026921162] [2024-11-14 05:45:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:05,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:05,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:05,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026921162] [2024-11-14 05:45:05,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026921162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:05,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:05,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:45:05,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661511800] [2024-11-14 05:45:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:05,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:45:05,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:45:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:45:05,969 INFO L87 Difference]: Start difference. First operand 168 states and 204 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:45:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:06,394 INFO L93 Difference]: Finished difference Result 280 states and 349 transitions. [2024-11-14 05:45:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:45:06,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-11-14 05:45:06,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:06,398 INFO L225 Difference]: With dead ends: 280 [2024-11-14 05:45:06,401 INFO L226 Difference]: Without dead ends: 209 [2024-11-14 05:45:06,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:45:06,403 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 66 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:06,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 146 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:45:06,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-14 05:45:06,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 169. [2024-11-14 05:45:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 117 states have (on average 1.2564102564102564) internal successors, (147), 132 states have internal predecessors, (147), 24 states have call successors, (24), 22 states have call predecessors, (24), 27 states have return successors, (36), 26 states have call predecessors, (36), 24 states have call successors, (36) [2024-11-14 05:45:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2024-11-14 05:45:06,472 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 36 [2024-11-14 05:45:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:06,472 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2024-11-14 05:45:06,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:45:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2024-11-14 05:45:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 05:45:06,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:06,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:06,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:45:06,476 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:06,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:06,476 INFO L85 PathProgramCache]: Analyzing trace with hash 595164928, now seen corresponding path program 1 times [2024-11-14 05:45:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:06,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811797872] [2024-11-14 05:45:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:06,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:06,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811797872] [2024-11-14 05:45:06,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811797872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:06,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:06,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:45:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175981120] [2024-11-14 05:45:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:06,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:45:06,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:45:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:45:06,680 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:45:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:06,790 INFO L93 Difference]: Finished difference Result 336 states and 417 transitions. [2024-11-14 05:45:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:45:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-14 05:45:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:06,793 INFO L225 Difference]: With dead ends: 336 [2024-11-14 05:45:06,797 INFO L226 Difference]: Without dead ends: 169 [2024-11-14 05:45:06,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:45:06,798 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 30 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:06,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 61 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:45:06,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-14 05:45:06,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-14 05:45:06,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 117 states have (on average 1.2136752136752136) internal successors, (142), 132 states have internal predecessors, (142), 24 states have call successors, (24), 22 states have call predecessors, (24), 27 states have return successors, (36), 26 states have call predecessors, (36), 24 states have call successors, (36) [2024-11-14 05:45:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 202 transitions. [2024-11-14 05:45:06,861 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 202 transitions. Word has length 39 [2024-11-14 05:45:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:06,861 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 202 transitions. [2024-11-14 05:45:06,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:45:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 202 transitions. [2024-11-14 05:45:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:45:06,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:06,863 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:45:06,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:45:06,864 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1980330582, now seen corresponding path program 1 times [2024-11-14 05:45:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133490432] [2024-11-14 05:45:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:45:06,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:06,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133490432] [2024-11-14 05:45:06,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133490432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:45:06,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158645992] [2024-11-14 05:45:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:06,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:45:06,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:06,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:45:06,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:45:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:07,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:45:07,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:45:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:07,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:45:07,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158645992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:07,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:45:07,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 05:45:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634486779] [2024-11-14 05:45:07,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:07,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:45:07,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:45:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:45:07,187 INFO L87 Difference]: Start difference. First operand 169 states and 202 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:45:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:07,276 INFO L93 Difference]: Finished difference Result 253 states and 306 transitions. [2024-11-14 05:45:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:45:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-11-14 05:45:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:07,278 INFO L225 Difference]: With dead ends: 253 [2024-11-14 05:45:07,279 INFO L226 Difference]: Without dead ends: 168 [2024-11-14 05:45:07,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:45:07,280 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:07,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 74 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:45:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-14 05:45:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-14 05:45:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 117 states have (on average 1.188034188034188) internal successors, (139), 131 states have internal predecessors, (139), 23 states have call successors, (23), 22 states have call predecessors, (23), 27 states have return successors, (29), 25 states have call predecessors, (29), 23 states have call successors, (29) [2024-11-14 05:45:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 191 transitions. [2024-11-14 05:45:07,328 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 191 transitions. Word has length 47 [2024-11-14 05:45:07,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:07,329 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 191 transitions. [2024-11-14 05:45:07,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:45:07,329 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 191 transitions. [2024-11-14 05:45:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 05:45:07,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:07,334 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:07,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:45:07,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 05:45:07,535 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:07,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1706299916, now seen corresponding path program 1 times [2024-11-14 05:45:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474359869] [2024-11-14 05:45:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:08,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:45:08,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:08,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474359869] [2024-11-14 05:45:08,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474359869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:45:08,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243810401] [2024-11-14 05:45:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:08,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:45:08,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:08,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:45:08,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:45:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:08,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:45:08,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:45:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:45:08,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:45:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:45:09,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243810401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:45:09,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028785357] [2024-11-14 05:45:09,581 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2024-11-14 05:45:09,581 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:45:09,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:45:09,591 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:45:09,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:45:16,516 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2024-11-14 05:45:16,612 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2024-11-14 05:45:16,779 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 45 for LOIs [2024-11-14 05:45:16,891 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 37 for LOIs [2024-11-14 05:45:16,898 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:45:20,037 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4222#(and (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (<= 0 (+ ~pumpRunning~0 2147483648)) (= ~waterLevel~0 0))' at error location [2024-11-14 05:45:20,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:45:20,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:45:20,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 10] total 28 [2024-11-14 05:45:20,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527710573] [2024-11-14 05:45:20,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:45:20,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:45:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:20,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:45:20,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2073, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 05:45:20,041 INFO L87 Difference]: Start difference. First operand 168 states and 191 transitions. Second operand has 28 states, 25 states have (on average 3.52) internal successors, (88), 24 states have internal predecessors, (88), 12 states have call successors, (16), 10 states have call predecessors, (16), 9 states have return successors, (14), 10 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-14 05:45:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:21,965 INFO L93 Difference]: Finished difference Result 381 states and 440 transitions. [2024-11-14 05:45:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-14 05:45:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 3.52) internal successors, (88), 24 states have internal predecessors, (88), 12 states have call successors, (16), 10 states have call predecessors, (16), 9 states have return successors, (14), 10 states have call predecessors, (14), 11 states have call successors, (14) Word has length 50 [2024-11-14 05:45:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:21,968 INFO L225 Difference]: With dead ends: 381 [2024-11-14 05:45:21,968 INFO L226 Difference]: Without dead ends: 299 [2024-11-14 05:45:21,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 111 SyntacticMatches, 10 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=943, Invalid=5377, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 05:45:21,973 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 593 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:21,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 450 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:45:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-14 05:45:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 203. [2024-11-14 05:45:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 143 states have (on average 1.1608391608391608) internal successors, (166), 157 states have internal predecessors, (166), 26 states have call successors, (26), 26 states have call predecessors, (26), 33 states have return successors, (33), 30 states have call predecessors, (33), 26 states have call successors, (33) [2024-11-14 05:45:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 225 transitions. [2024-11-14 05:45:22,004 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 225 transitions. Word has length 50 [2024-11-14 05:45:22,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:22,004 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 225 transitions. [2024-11-14 05:45:22,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 3.52) internal successors, (88), 24 states have internal predecessors, (88), 12 states have call successors, (16), 10 states have call predecessors, (16), 9 states have return successors, (14), 10 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-14 05:45:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 225 transitions. [2024-11-14 05:45:22,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 05:45:22,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:22,006 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:22,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:45:22,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:45:22,211 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:22,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:22,211 INFO L85 PathProgramCache]: Analyzing trace with hash 6907889, now seen corresponding path program 1 times [2024-11-14 05:45:22,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:22,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109555574] [2024-11-14 05:45:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 41 proven. 49 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:45:23,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109555574] [2024-11-14 05:45:23,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109555574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:45:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274235012] [2024-11-14 05:45:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:23,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:45:23,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:23,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:45:23,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:45:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:23,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 05:45:23,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:45:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 51 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:45:24,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:45:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 05:45:24,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274235012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:45:24,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83984976] [2024-11-14 05:45:24,790 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2024-11-14 05:45:24,790 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:45:24,790 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:45:24,790 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:45:24,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:45:29,937 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2024-11-14 05:45:30,019 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2024-11-14 05:45:30,160 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 45 for LOIs [2024-11-14 05:45:30,233 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 37 for LOIs [2024-11-14 05:45:30,239 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:45:33,080 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5715#(and (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (<= 0 (+ ~pumpRunning~0 2147483648)) (= ~waterLevel~0 0))' at error location [2024-11-14 05:45:33,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:45:33,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:45:33,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 13] total 38 [2024-11-14 05:45:33,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768004495] [2024-11-14 05:45:33,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:45:33,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 05:45:33,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:33,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 05:45:33,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=452, Invalid=2970, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 05:45:33,084 INFO L87 Difference]: Start difference. First operand 203 states and 225 transitions. Second operand has 38 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 16 states have call successors, (21), 8 states have call predecessors, (21), 15 states have return successors, (22), 15 states have call predecessors, (22), 16 states have call successors, (22) [2024-11-14 05:45:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:33,826 INFO L93 Difference]: Finished difference Result 276 states and 309 transitions. [2024-11-14 05:45:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:45:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 16 states have call successors, (21), 8 states have call predecessors, (21), 15 states have return successors, (22), 15 states have call predecessors, (22), 16 states have call successors, (22) Word has length 87 [2024-11-14 05:45:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:33,828 INFO L225 Difference]: With dead ends: 276 [2024-11-14 05:45:33,828 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:45:33,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 215 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2046 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=700, Invalid=3856, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:45:33,830 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 274 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:33,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 253 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:45:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:45:33,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:45:33,832 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) [2024-11-14 05:45:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:45:33,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2024-11-14 05:45:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:33,832 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:45:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 16 states have call successors, (21), 8 states have call predecessors, (21), 15 states have return successors, (22), 15 states have call predecessors, (22), 16 states have call successors, (22) [2024-11-14 05:45:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:45:33,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:45:33,836 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:45:33,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:45:34,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:45:34,039 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:34,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:45:35,337 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:45:35,371 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse3 (= |old(~waterLevel~0)| 2)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~waterLevel~0)| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 1)) (.cse2 (= 2 ~waterLevel~0))) (and (or (not .cse0) (and .cse1 .cse2) (not .cse3)) (let ((.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse4 .cse5 .cse3) (and .cse0 .cse5 .cse3) (and .cse6 .cse0 .cse5))) (or (not .cse6) (and .cse1 (= ~waterLevel~0 1))) (or (not .cse4) (and .cse2 (= ~pumpRunning~0 1))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse3 (= |old(~waterLevel~0)| 2)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~waterLevel~0)| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 1)) (.cse2 (= 2 ~waterLevel~0))) (and (or (not .cse0) (and .cse1 .cse2) (not .cse3)) (let ((.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse4 .cse5 .cse3) (and .cse0 .cse5 .cse3) (and .cse6 .cse0 .cse5))) (or (not .cse6) (and .cse1 (= ~waterLevel~0 1))) (or (not .cse4) (and .cse2 (= ~pumpRunning~0 1)))))) [2024-11-14 05:45:35,378 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:45:35,382 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0) (and (= ~waterLevel~0 1) .cse0)))) [2024-11-14 05:45:35,388 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= |old(~waterLevel~0)| 1)) (.cse1 (= |old(~waterLevel~0)| 2))) (and (or (not .cse0) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse2) (and .cse2 .cse1 (= ~pumpRunning~0 1)))))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~waterLevel~0)| 1)) (.cse1 (= |old(~waterLevel~0)| 2))) (and (or (not .cse0) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse2) (and .cse2 .cse1 (= ~pumpRunning~0 1))))))) [2024-11-14 05:45:35,390 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:45:35,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:45:35 BoogieIcfgContainer [2024-11-14 05:45:35,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:45:35,392 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:45:35,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:45:35,392 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:45:35,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:45:02" (3/4) ... [2024-11-14 05:45:35,396 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:45:35,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-14 05:45:35,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-14 05:45:35,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-14 05:45:35,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-14 05:45:35,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-14 05:45:35,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-14 05:45:35,408 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-14 05:45:35,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-14 05:45:35,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 05:45:35,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:45:35,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:45:35,446 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) && (((((\old(pumpRunning) == 1) && (0 != systemActive)) && (\old(waterLevel) == 2)) || (((\old(pumpRunning) == 0) && (0 != systemActive)) && (\old(waterLevel) == 2))) || (((\old(waterLevel) == 1) && (\old(pumpRunning) == 0)) && (0 != systemActive)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((\old(pumpRunning) != 1) || ((2 == waterLevel) && (pumpRunning == 1)))) [2024-11-14 05:45:35,473 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) && (((((\old(pumpRunning) == 1) && (0 != systemActive)) && (\old(waterLevel) == 2)) || (((\old(pumpRunning) == 0) && (0 != systemActive)) && (\old(waterLevel) == 2))) || (((\old(waterLevel) == 1) && (\old(pumpRunning) == 0)) && (0 != systemActive)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((\old(pumpRunning) != 1) || ((2 == waterLevel) && (pumpRunning == 1)))) [2024-11-14 05:45:35,525 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:45:35,526 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:45:35,526 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:45:35,527 INFO L158 Benchmark]: Toolchain (without parser) took 33856.22ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 118.9MB in the beginning and 683.9MB in the end (delta: -565.0MB). Peak memory consumption was 649.6MB. Max. memory is 16.1GB. [2024-11-14 05:45:35,528 INFO L158 Benchmark]: CDTParser took 1.90ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:45:35,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.76ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 100.1MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:45:35,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.38ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:45:35,530 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:45:35,530 INFO L158 Benchmark]: RCFGBuilder took 635.41ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 70.5MB in the end (delta: 26.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:45:35,530 INFO L158 Benchmark]: TraceAbstraction took 32395.35ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 69.7MB in the beginning and 692.3MB in the end (delta: -622.6MB). Peak memory consumption was 590.9MB. Max. memory is 16.1GB. [2024-11-14 05:45:35,532 INFO L158 Benchmark]: Witness Printer took 134.02ms. Allocated memory is still 1.4GB. Free memory was 692.3MB in the beginning and 683.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:45:35,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.90ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 614.76ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 100.1MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.38ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 635.41ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 70.5MB in the end (delta: 26.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 32395.35ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 69.7MB in the beginning and 692.3MB in the end (delta: -622.6MB). Peak memory consumption was 590.9MB. Max. memory is 16.1GB. * Witness Printer took 134.02ms. Allocated memory is still 1.4GB. Free memory was 692.3MB in the beginning and 683.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [415] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] - GenericResultAtLocation [Line: 548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [557] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 700]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [908] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 553]: 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: 31.0s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1260 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1236 mSDsluCounter, 1498 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1090 mSDsCounter, 643 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2019 IncrementalHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 643 mSolverCounterUnsat, 408 mSDtfsCounter, 2019 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 597 GetRequests, 397 SyntacticMatches, 21 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4222 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=9, InterpolantAutomatonStates: 94, 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, 10 MinimizatonAttempts, 170 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 649 ConstructedInterpolants, 0 QuantifiedInterpolants, 2789 SizeOfPredicates, 13 NumberOfNonLiveVariables, 717 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 269/408 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: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) && (0 != systemActive)) || ((((2 == waterLevel) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) - InvariantResult [Line: 918]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 707]: Location Invariant Derived location invariant: ((((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) && (((((\old(pumpRunning) == 1) && (0 != systemActive)) && (\old(waterLevel) == 2)) || (((\old(pumpRunning) == 0) && (0 != systemActive)) && (\old(waterLevel) == 2))) || (((\old(waterLevel) == 1) && (\old(pumpRunning) == 0)) && (0 != systemActive)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((\old(pumpRunning) != 1) || ((2 == waterLevel) && (pumpRunning == 1)))) - ProcedureContractResult [Line: 731]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 624]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: ((((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 707]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(pumpRunning) != 1) || ((pumpRunning == 0) && (waterLevel == 1))) && (((((\old(pumpRunning) == 1) && (0 != systemActive)) && (\old(waterLevel) == 2)) || (((\old(pumpRunning) == 0) && (0 != systemActive)) && (\old(waterLevel) == 2))) || (((\old(waterLevel) == 1) && (\old(pumpRunning) == 0)) && (0 != systemActive)))) && (((\old(pumpRunning) != 0) || (\old(waterLevel) != 2)) || ((2 == waterLevel) && (pumpRunning == 1)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 447]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 739]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 == waterLevel) && (0 != systemActive)) || ((waterLevel == 1) && (0 != systemActive)))) Ensures: (((((2 != waterLevel) || (pumpRunning == 1)) && ((waterLevel != 1) || (pumpRunning == 0))) && ((((2 == waterLevel) && (\old(pumpRunning) == 0)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel == 1)) && (0 != systemActive)))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 612]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((2 == waterLevel) && ((((pumpRunning == 0) && (\old(waterLevel) == 1)) && (0 != systemActive)) || (((0 != systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:45:35,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25f843e-2a75-423f-83a1-b8da55d8a891/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE