./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24866d83893c62cb34bc59a82613556af1a8105419efcaf32d88f955b1a97fe7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:15:49,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:15:49,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:15:49,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:15:49,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:15:49,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:15:49,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:15:49,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:15:49,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:15:49,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:15:49,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:15:49,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:15:49,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:15:49,706 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:15:49,706 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:15:49,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:15:49,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:15:49,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:15:49,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:15:49,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:15:49,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:15:49,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:15:49,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:15:49,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:15:49,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:15:49,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:15:49,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:15:49,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:15:49,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:15:49,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:15:49,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:15:49,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:15:49,715 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24866d83893c62cb34bc59a82613556af1a8105419efcaf32d88f955b1a97fe7 [2024-11-09 23:15:49,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:15:49,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:15:49,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:15:49,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:15:49,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:15:49,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c [2024-11-09 23:15:51,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:15:51,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:15:51,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c [2024-11-09 23:15:51,293 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cf5ca75/842b2eefb9c9495f8dea56ea3f584550/FLAGe92ff3bee [2024-11-09 23:15:51,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cf5ca75/842b2eefb9c9495f8dea56ea3f584550 [2024-11-09 23:15:51,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:15:51,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:15:51,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:15:51,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:15:51,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:15:51,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:51" (1/1) ... [2024-11-09 23:15:51,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59dbe989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:51, skipping insertion in model container [2024-11-09 23:15:51,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:51" (1/1) ... [2024-11-09 23:15:51,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:15:51,930 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c[6803,6816] [2024-11-09 23:15:51,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:15:52,004 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:15:52,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-09 23:15:52,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] [2024-11-09 23:15:52,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [162] [2024-11-09 23:15:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [318] [2024-11-09 23:15:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [358] [2024-11-09 23:15:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [439] [2024-11-09 23:15:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [448] [2024-11-09 23:15:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [814] [2024-11-09 23:15:52,032 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product12.cil.c[6803,6816] [2024-11-09 23:15:52,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:15:52,093 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:15:52,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52 WrapperNode [2024-11-09 23:15:52,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:15:52,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:15:52,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:15:52,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:15:52,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,122 INFO L138 Inliner]: procedures = 53, calls = 94, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 144 [2024-11-09 23:15:52,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:15:52,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:15:52,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:15:52,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:15:52,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,149 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:15:52,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:15:52,156 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:15:52,157 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:15:52,157 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:15:52,157 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (1/1) ... [2024-11-09 23:15:52,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:15:52,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:52,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:15:52,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:15:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:15:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:15:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:15:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:15:52,307 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:15:52,308 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:15:52,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L404: #res := ~retValue_acc~4; [2024-11-09 23:15:52,404 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L256-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2024-11-09 23:15:52,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L908-1: main_#res#1 := main_~retValue_acc~9#1; [2024-11-09 23:15:52,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-09 23:15:52,484 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 23:15:52,484 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:15:52,499 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:15:52,499 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:15:52,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:52 BoogieIcfgContainer [2024-11-09 23:15:52,499 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:15:52,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:15:52,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:15:52,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:15:52,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:15:51" (1/3) ... [2024-11-09 23:15:52,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de4a24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:52, skipping insertion in model container [2024-11-09 23:15:52,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:52" (2/3) ... [2024-11-09 23:15:52,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de4a24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:52, skipping insertion in model container [2024-11-09 23:15:52,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:52" (3/3) ... [2024-11-09 23:15:52,507 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product12.cil.c [2024-11-09 23:15:52,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:15:52,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:15:52,575 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:15:52,580 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=PETRI_NET, 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;@7436fdb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:15:52,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:15:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 63 states have internal predecessors, (80), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 23:15:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 23:15:52,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:52,592 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, 1] [2024-11-09 23:15:52,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:52,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:52,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2096031351, now seen corresponding path program 1 times [2024-11-09 23:15:52,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:52,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539095423] [2024-11-09 23:15:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:52,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:52,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:15:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:15:52,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:52,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539095423] [2024-11-09 23:15:52,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539095423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:52,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:52,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:15:52,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197073786] [2024-11-09 23:15:52,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:52,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:15:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:15:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:15:52,791 INFO L87 Difference]: Start difference. First operand has 73 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 63 states have internal predecessors, (80), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:52,810 INFO L93 Difference]: Finished difference Result 136 states and 181 transitions. [2024-11-09 23:15:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:15:52,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 23:15:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:52,818 INFO L225 Difference]: With dead ends: 136 [2024-11-09 23:15:52,818 INFO L226 Difference]: Without dead ends: 62 [2024-11-09 23:15:52,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:15:52,823 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:52,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-09 23:15:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 23:15:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 23:15:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2024-11-09 23:15:52,853 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 27 [2024-11-09 23:15:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:52,854 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2024-11-09 23:15:52,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2024-11-09 23:15:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:15:52,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:52,857 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, 1, 1, 1] [2024-11-09 23:15:52,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:15:52,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:52,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1540446639, now seen corresponding path program 1 times [2024-11-09 23:15:52,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:52,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518381711] [2024-11-09 23:15:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:52,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:52,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:15:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:15:52,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518381711] [2024-11-09 23:15:52,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518381711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:52,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:52,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:52,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456076649] [2024-11-09 23:15:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:52,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:52,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:52,975 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:52,987 INFO L93 Difference]: Finished difference Result 83 states and 102 transitions. [2024-11-09 23:15:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:52,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 23:15:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:52,989 INFO L225 Difference]: With dead ends: 83 [2024-11-09 23:15:52,989 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 23:15:52,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:52,991 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:52,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 23:15:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-09 23:15:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.302325581395349) internal successors, (56), 46 states have internal predecessors, (56), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 23:15:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2024-11-09 23:15:52,998 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 29 [2024-11-09 23:15:52,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:52,998 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2024-11-09 23:15:52,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2024-11-09 23:15:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 23:15:52,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:52,999 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, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:52,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:15:53,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:53,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash 441748532, now seen corresponding path program 1 times [2024-11-09 23:15:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:53,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554587694] [2024-11-09 23:15:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:15:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:15:53,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:53,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554587694] [2024-11-09 23:15:53,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554587694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:53,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:53,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442305357] [2024-11-09 23:15:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:53,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:53,081 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:53,101 INFO L93 Difference]: Finished difference Result 138 states and 175 transitions. [2024-11-09 23:15:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:53,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 23:15:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:53,104 INFO L225 Difference]: With dead ends: 138 [2024-11-09 23:15:53,104 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 23:15:53,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:53,106 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 56 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:53,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 114 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:53,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 23:15:53,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2024-11-09 23:15:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 76 states have internal predecessors, (95), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 23:15:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2024-11-09 23:15:53,118 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 32 [2024-11-09 23:15:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:53,118 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2024-11-09 23:15:53,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2024-11-09 23:15:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 23:15:53,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:53,119 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:53,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:15:53,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:53,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:53,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1235562692, now seen corresponding path program 1 times [2024-11-09 23:15:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409818979] [2024-11-09 23:15:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:53,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 23:15:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:15:53,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:53,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409818979] [2024-11-09 23:15:53,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409818979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:53,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862984958] [2024-11-09 23:15:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:53,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:53,212 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-09 23:15:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:53,242 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2024-11-09 23:15:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:53,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 33 [2024-11-09 23:15:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:53,245 INFO L225 Difference]: With dead ends: 168 [2024-11-09 23:15:53,246 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 23:15:53,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:53,248 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 37 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:53,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 115 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 23:15:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-09 23:15:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 132 states have (on average 1.3484848484848484) internal successors, (178), 141 states have internal predecessors, (178), 16 states have call successors, (16), 16 states have call predecessors, (16), 16 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2024-11-09 23:15:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2024-11-09 23:15:53,291 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 33 [2024-11-09 23:15:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:53,292 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2024-11-09 23:15:53,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-09 23:15:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2024-11-09 23:15:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:15:53,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:53,294 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:53,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:15:53,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:53,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash -744194556, now seen corresponding path program 1 times [2024-11-09 23:15:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:53,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343917313] [2024-11-09 23:15:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 23:15:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 23:15:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 23:15:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 23:15:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:53,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343917313] [2024-11-09 23:15:53,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343917313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:15:53,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040898357] [2024-11-09 23:15:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:53,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:53,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:53,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:15:53,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:15:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:53,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 23:15:53,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:15:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 23:15:53,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:15:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 23:15:53,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040898357] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 23:15:53,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 23:15:53,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 4] total 11 [2024-11-09 23:15:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910679738] [2024-11-09 23:15:53,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:53,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:15:53,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:53,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:15:53,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:15:53,746 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:53,778 INFO L93 Difference]: Finished difference Result 235 states and 308 transitions. [2024-11-09 23:15:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:15:53,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2024-11-09 23:15:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:53,779 INFO L225 Difference]: With dead ends: 235 [2024-11-09 23:15:53,779 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:15:53,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:15:53,781 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 28 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:53,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 142 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:15:53,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:15:53,781 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) [2024-11-09 23:15:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:15:53,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2024-11-09 23:15:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:53,782 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:15:53,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:15:53,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:15:53,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:15:53,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:15:53,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:53,987 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 23:15:53,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:15:54,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:15:54,241 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~methAndRunningLastTime~0)| 0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2024-11-09 23:15:54,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:15:54 BoogieIcfgContainer [2024-11-09 23:15:54,247 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:15:54,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:15:54,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:15:54,247 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:15:54,248 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:52" (3/4) ... [2024-11-09 23:15:54,250 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:15:54,253 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:15:54,253 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-09 23:15:54,254 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:15:54,254 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:15:54,254 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:15:54,259 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-11-09 23:15:54,259 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 23:15:54,260 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:15:54,260 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:15:54,260 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:15:54,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:15:54,337 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:15:54,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:15:54,337 INFO L158 Benchmark]: Toolchain (without parser) took 2672.37ms. Allocated memory is still 188.7MB. Free memory was 129.3MB in the beginning and 74.5MB in the end (delta: 54.7MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,337 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.39ms. Allocated memory is still 188.7MB. Free memory was 129.3MB in the beginning and 151.6MB in the end (delta: -22.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.73ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: Boogie Preprocessor took 32.81ms. Allocated memory is still 188.7MB. Free memory was 149.5MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: IcfgBuilder took 343.09ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 131.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: TraceAbstraction took 1745.83ms. Allocated memory is still 188.7MB. Free memory was 130.7MB in the beginning and 80.8MB in the end (delta: 49.8MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,338 INFO L158 Benchmark]: Witness Printer took 89.82ms. Allocated memory is still 188.7MB. Free memory was 80.8MB in the beginning and 74.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:15:54,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.39ms. Allocated memory is still 188.7MB. Free memory was 129.3MB in the beginning and 151.6MB in the end (delta: -22.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.73ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.81ms. Allocated memory is still 188.7MB. Free memory was 149.5MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 343.09ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 131.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1745.83ms. Allocated memory is still 188.7MB. Free memory was 130.7MB in the beginning and 80.8MB in the end (delta: 49.8MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Witness Printer took 89.82ms. Allocated memory is still 188.7MB. Free memory was 80.8MB in the beginning and 74.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [162] - GenericResultAtLocation [Line: 318]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [318] - GenericResultAtLocation [Line: 358]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [358] - GenericResultAtLocation [Line: 439]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [439] - GenericResultAtLocation [Line: 448]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [448] - GenericResultAtLocation [Line: 814]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [814] * 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: 444]: 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 6 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 562 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 238 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 324 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 595 SizeOfPredicates, 1 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 65/69 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: 104]: Location Invariant Derived location invariant: null - InvariantResult [Line: 826]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 386]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((pumpRunning == 0) && (methAndRunningLastTime == 0)) Ensures: (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 398]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((pumpRunning == 0) && (methAndRunningLastTime == 0)) Ensures: (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 816]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 174]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((pumpRunning == 0) && (methAndRunningLastTime == 0)) Ensures: ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methAndRunningLastTime) == 0)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 374]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((pumpRunning == 0) && (methAndRunningLastTime == 0)) Ensures: (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:15:54,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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