./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_spec4_product19.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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:54:45,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:54:45,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:54:45,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:54:45,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:54:45,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:54:45,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:54:45,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:54:45,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:54:45,709 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:54:45,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:54:45,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:54:45,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:54:45,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:54:45,712 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:54:45,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:54:45,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:54:45,713 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:54:45,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:54:45,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:54:45,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:54:45,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:54:45,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:54:45,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:54:45,716 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:54:45,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:54:45,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:54:45,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:54:45,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:54:45,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:54:45,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:54:45,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:54:45,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:54:45,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:54:45,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:54:45,719 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:54:45,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:54:45,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2024-11-11 20:54:45,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:54:45,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:54:45,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:54:45,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:54:45,993 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:54:45,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2024-11-11 20:54:47,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:54:47,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:54:47,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2024-11-11 20:54:47,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a788eee25/7f84a927acee48d5be9f88aed05753ba/FLAGf8aeb52a0 [2024-11-11 20:54:47,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a788eee25/7f84a927acee48d5be9f88aed05753ba [2024-11-11 20:54:47,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:54:47,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:54:47,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:54:47,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:54:47,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:54:47,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:54:47" (1/1) ... [2024-11-11 20:54:47,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c204f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:47, skipping insertion in model container [2024-11-11 20:54:47,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:54:47" (1/1) ... [2024-11-11 20:54:47,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:54:48,089 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_spec4_product19.cil.c[14834,14847] [2024-11-11 20:54:48,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:54:48,110 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:54:48,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-11 20:54:48,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [511] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [685] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [694] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [762] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [861] [2024-11-11 20:54:48,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [896] [2024-11-11 20:54:48,172 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_spec4_product19.cil.c[14834,14847] [2024-11-11 20:54:48,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:54:48,198 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:54:48,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48 WrapperNode [2024-11-11 20:54:48,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:54:48,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:54:48,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:54:48,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:54:48,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,244 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 169 [2024-11-11 20:54:48,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:54:48,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:54:48,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:54:48,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:54:48,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,275 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]. [2024-11-11 20:54:48,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:54:48,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:54:48,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:54:48,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:54:48,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (1/1) ... [2024-11-11 20:54:48,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:54:48,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:54:48,317 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) [2024-11-11 20:54:48,320 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 [2024-11-11 20:54:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:54:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-11 20:54:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-11 20:54:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-11 20:54:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-11 20:54:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-11 20:54:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-11 20:54:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-11 20:54:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-11 20:54:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-11 20:54:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-11 20:54:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:54:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-11 20:54:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-11 20:54:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:54:48,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:54:48,423 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:54:48,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:54:48,652 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-11 20:54:48,652 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:54:48,663 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:54:48,664 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-11 20:54:48,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:54:48 BoogieIcfgContainer [2024-11-11 20:54:48,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:54:48,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:54:48,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:54:48,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:54:48,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:54:47" (1/3) ... [2024-11-11 20:54:48,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41118bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:54:48, skipping insertion in model container [2024-11-11 20:54:48,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:54:48" (2/3) ... [2024-11-11 20:54:48,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41118bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:54:48, skipping insertion in model container [2024-11-11 20:54:48,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:54:48" (3/3) ... [2024-11-11 20:54:48,672 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2024-11-11 20:54:48,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:54:48,686 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:54:48,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:54:48,774 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;@d19b1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:54:48,778 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:54:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 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) [2024-11-11 20:54:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-11 20:54:48,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:48,794 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:54:48,794 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:48,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:48,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1265450001, now seen corresponding path program 1 times [2024-11-11 20:54:48,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:48,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982783063] [2024-11-11 20:54:48,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:48,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:48,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:48,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982783063] [2024-11-11 20:54:48,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982783063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:48,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:48,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 20:54:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525719437] [2024-11-11 20:54:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:48,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:54:48,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:54:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 20:54:48,972 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2024-11-11 20:54:49,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:49,000 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2024-11-11 20:54:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:54:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 19 [2024-11-11 20:54:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:49,009 INFO L225 Difference]: With dead ends: 144 [2024-11-11 20:54:49,009 INFO L226 Difference]: Without dead ends: 67 [2024-11-11 20:54:49,012 INFO L434 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 [2024-11-11 20:54:49,015 INFO L435 NwaCegarLoop]: 95 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, 95 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 [2024-11-11 20:54:49,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:54:49,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-11 20:54:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-11 20:54:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 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) [2024-11-11 20:54:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2024-11-11 20:54:49,054 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2024-11-11 20:54:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:49,056 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2024-11-11 20:54:49,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2024-11-11 20:54:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2024-11-11 20:54:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-11 20:54:49,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:49,059 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:54:49,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 20:54:49,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:49,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash 179493032, now seen corresponding path program 1 times [2024-11-11 20:54:49,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:49,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78064479] [2024-11-11 20:54:49,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:49,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:49,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:49,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78064479] [2024-11-11 20:54:49,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78064479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:49,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:49,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 20:54:49,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119946958] [2024-11-11 20:54:49,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:49,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:54:49,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:49,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:54:49,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 20:54:49,166 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-11 20:54:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:49,183 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2024-11-11 20:54:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:54:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2024-11-11 20:54:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:49,186 INFO L225 Difference]: With dead ends: 96 [2024-11-11 20:54:49,186 INFO L226 Difference]: Without dead ends: 58 [2024-11-11 20:54:49,187 INFO L434 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 [2024-11-11 20:54:49,188 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 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 [2024-11-11 20:54:49,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:54:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-11 20:54:49,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-11 20:54:49,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 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) [2024-11-11 20:54:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2024-11-11 20:54:49,195 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2024-11-11 20:54:49,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:49,195 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2024-11-11 20:54:49,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-11 20:54:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2024-11-11 20:54:49,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 20:54:49,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:49,196 INFO L218 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] [2024-11-11 20:54:49,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 20:54:49,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:49,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2144024677, now seen corresponding path program 1 times [2024-11-11 20:54:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:49,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009799168] [2024-11-11 20:54:49,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:49,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:49,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:49,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009799168] [2024-11-11 20:54:49,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009799168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:49,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:49,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 20:54:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461541331] [2024-11-11 20:54:49,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:49,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:54:49,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:49,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:54:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:54:49,375 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-11 20:54:49,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:49,513 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2024-11-11 20:54:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:54:49,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2024-11-11 20:54:49,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:49,515 INFO L225 Difference]: With dead ends: 197 [2024-11-11 20:54:49,515 INFO L226 Difference]: Without dead ends: 146 [2024-11-11 20:54:49,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:54:49,517 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 121 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:54:49,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 352 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:54:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-11 20:54:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2024-11-11 20:54:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-11 20:54:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-11-11 20:54:49,536 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2024-11-11 20:54:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:49,536 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-11-11 20:54:49,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-11 20:54:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-11-11 20:54:49,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-11 20:54:49,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:49,538 INFO L218 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] [2024-11-11 20:54:49,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 20:54:49,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:49,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1279070703, now seen corresponding path program 1 times [2024-11-11 20:54:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028131916] [2024-11-11 20:54:49,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:49,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028131916] [2024-11-11 20:54:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028131916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:49,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:49,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 20:54:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743482730] [2024-11-11 20:54:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:49,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:54:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:49,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:54:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 20:54:49,659 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-11 20:54:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:49,732 INFO L93 Difference]: Finished difference Result 389 states and 533 transitions. [2024-11-11 20:54:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:54:49,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 28 [2024-11-11 20:54:49,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:49,735 INFO L225 Difference]: With dead ends: 389 [2024-11-11 20:54:49,736 INFO L226 Difference]: Without dead ends: 256 [2024-11-11 20:54:49,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:54:49,739 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:54:49,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 263 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:54:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-11 20:54:49,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-11-11 20:54:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 218 states have internal predecessors, (262), 36 states have call successors, (36), 28 states have call predecessors, (36), 25 states have return successors, (42), 21 states have call predecessors, (42), 36 states have call successors, (42) [2024-11-11 20:54:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 340 transitions. [2024-11-11 20:54:49,783 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 340 transitions. Word has length 28 [2024-11-11 20:54:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:49,784 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 340 transitions. [2024-11-11 20:54:49,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-11 20:54:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 340 transitions. [2024-11-11 20:54:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-11 20:54:49,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:49,788 INFO L218 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] [2024-11-11 20:54:49,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 20:54:49,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:49,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1024780246, now seen corresponding path program 1 times [2024-11-11 20:54:49,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:49,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240473414] [2024-11-11 20:54:49,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:49,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:49,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:49,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240473414] [2024-11-11 20:54:49,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240473414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:49,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:49,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 20:54:49,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048266530] [2024-11-11 20:54:49,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:49,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:54:49,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:49,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:54:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 20:54:49,854 INFO L87 Difference]: Start difference. First operand 256 states and 340 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-11 20:54:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:49,878 INFO L93 Difference]: Finished difference Result 444 states and 600 transitions. [2024-11-11 20:54:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:54:49,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 30 [2024-11-11 20:54:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:49,880 INFO L225 Difference]: With dead ends: 444 [2024-11-11 20:54:49,881 INFO L226 Difference]: Without dead ends: 195 [2024-11-11 20:54:49,884 INFO L434 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 [2024-11-11 20:54:49,885 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:54:49,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:54:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-11 20:54:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2024-11-11 20:54:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 159 states have internal predecessors, (190), 22 states have call successors, (22), 22 states have call predecessors, (22), 19 states have return successors, (24), 19 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-11 20:54:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 236 transitions. [2024-11-11 20:54:49,912 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 236 transitions. Word has length 30 [2024-11-11 20:54:49,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:49,912 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 236 transitions. [2024-11-11 20:54:49,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-11 20:54:49,913 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 236 transitions. [2024-11-11 20:54:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-11 20:54:49,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:54:49,914 INFO L218 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] [2024-11-11 20:54:49,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 20:54:49,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:54:49,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:54:49,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1714096393, now seen corresponding path program 1 times [2024-11-11 20:54:49,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:54:49,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569715946] [2024-11-11 20:54:49,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:54:49,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:54:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:50,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:54:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:54:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:54:50,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:54:50,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569715946] [2024-11-11 20:54:50,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569715946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:54:50,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:54:50,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:54:50,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663580978] [2024-11-11 20:54:50,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:54:50,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:54:50,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:54:50,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:54:50,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:54:50,012 INFO L87 Difference]: Start difference. First operand 191 states and 236 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-11 20:54:50,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:54:50,090 INFO L93 Difference]: Finished difference Result 197 states and 242 transitions. [2024-11-11 20:54:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:54:50,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 32 [2024-11-11 20:54:50,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:54:50,091 INFO L225 Difference]: With dead ends: 197 [2024-11-11 20:54:50,091 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 20:54:50,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:54:50,093 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 41 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:54:50,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 137 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:54:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 20:54:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 20:54:50,094 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) [2024-11-11 20:54:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 20:54:50,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2024-11-11 20:54:50,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:54:50,094 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 20:54:50,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-11 20:54:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 20:54:50,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 20:54:50,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 20:54:50,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:54:50,099 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-11 20:54:50,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 20:54:50,517 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 20:54:50,547 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-11 20:54:50,552 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-11 20:54:50,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 08:54:50 BoogieIcfgContainer [2024-11-11 20:54:50,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 20:54:50,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 20:54:50,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 20:54:50,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 20:54:50,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:54:48" (3/4) ... [2024-11-11 20:54:50,558 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 20:54:50,566 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-11 20:54:50,566 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-11 20:54:50,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-11 20:54:50,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-11 20:54:50,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-11 20:54:50,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-11 20:54:50,573 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-11 20:54:50,574 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-11 20:54:50,574 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-11 20:54:50,574 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 20:54:50,574 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 20:54:50,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 20:54:50,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 20:54:50,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 20:54:50,670 INFO L158 Benchmark]: Toolchain (without parser) took 2853.48ms. Allocated memory was 178.3MB in the beginning and 247.5MB in the end (delta: 69.2MB). Free memory was 120.4MB in the beginning and 153.7MB in the end (delta: -33.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,670 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 20:54:50,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.90ms. Allocated memory is still 178.3MB. Free memory was 120.1MB in the beginning and 98.8MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.20ms. Allocated memory is still 178.3MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,670 INFO L158 Benchmark]: Boogie Preprocessor took 42.03ms. Allocated memory is still 178.3MB. Free memory was 96.7MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,671 INFO L158 Benchmark]: RCFGBuilder took 376.94ms. Allocated memory is still 178.3MB. Free memory was 94.7MB in the beginning and 77.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,671 INFO L158 Benchmark]: TraceAbstraction took 1886.22ms. Allocated memory was 178.3MB in the beginning and 247.5MB in the end (delta: 69.2MB). Free memory was 77.3MB in the beginning and 160.0MB in the end (delta: -82.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 20:54:50,671 INFO L158 Benchmark]: Witness Printer took 113.77ms. Allocated memory is still 247.5MB. Free memory was 160.0MB in the beginning and 153.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-11 20:54:50,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.90ms. Allocated memory is still 178.3MB. Free memory was 120.1MB in the beginning and 98.8MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.20ms. Allocated memory is still 178.3MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.03ms. Allocated memory is still 178.3MB. Free memory was 96.7MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.94ms. Allocated memory is still 178.3MB. Free memory was 94.7MB in the beginning and 77.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1886.22ms. Allocated memory was 178.3MB in the beginning and 247.5MB in the end (delta: 69.2MB). Free memory was 77.3MB in the beginning and 160.0MB in the end (delta: -82.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 113.77ms. Allocated memory is still 247.5MB. Free memory was 160.0MB in the beginning and 153.7MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [511] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [685] - GenericResultAtLocation [Line: 694]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [694] - GenericResultAtLocation [Line: 762]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [762] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [861] - GenericResultAtLocation [Line: 896]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [896] * 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: 690]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 1021 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 614 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 407 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 774]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 705]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - ProcedureContractResult [Line: 587]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 546]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (0 != systemActive)) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 449]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 764]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 522]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 437]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-11 20:54:50,701 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