./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_product06.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 02f348a1765e9ec5744c77eeefa530e23dc9cfba8d17cca10f5e72556b3df984 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:20:27,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:20:27,860 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:20:27,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:20:27,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:20:27,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:20:27,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:20:27,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:20:27,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:20:27,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:20:27,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:20:27,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:20:27,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:20:27,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:20:27,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:20:27,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:20:27,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:20:27,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:20:27,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:20:27,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:20:27,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:20:27,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:20:27,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:20:27,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:20:27,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:20:27,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:20:27,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:20:27,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:20:27,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:20:27,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:20:27,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:20:27,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:20:27,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:27,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:20:27,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:20:27,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:20:27,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:20:27,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f348a1765e9ec5744c77eeefa530e23dc9cfba8d17cca10f5e72556b3df984 [2024-11-18 14:20:28,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:20:28,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:20:28,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:20:28,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:20:28,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:20:28,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2024-11-18 14:20:29,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:20:29,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:20:29,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2024-11-18 14:20:29,730 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec48c8a28/6df0afed035a4afa8378f0ceb61114ff/FLAG91740275c [2024-11-18 14:20:29,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec48c8a28/6df0afed035a4afa8378f0ceb61114ff [2024-11-18 14:20:29,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:20:29,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:20:29,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:29,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:20:29,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:20:29,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:29" (1/1) ... [2024-11-18 14:20:29,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5a43a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:29, skipping insertion in model container [2024-11-18 14:20:29,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:29" (1/1) ... [2024-11-18 14:20:29,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:20:30,065 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_product06.cil.c[17188,17201] [2024-11-18 14:20:30,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:30,080 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:20:30,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-18 14:20:30,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [237] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [265] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [409] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [476] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [842] [2024-11-18 14:20:30,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [877] [2024-11-18 14:20:30,142 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_product06.cil.c[17188,17201] [2024-11-18 14:20:30,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:30,166 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:20:30,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30 WrapperNode [2024-11-18 14:20:30,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:30,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:30,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:20:30,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:20:30,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,218 INFO L138 Inliner]: procedures = 51, calls = 93, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 163 [2024-11-18 14:20:30,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:30,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:20:30,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:20:30,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:20:30,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,229 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,241 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]. [2024-11-18 14:20:30,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:20:30,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:20:30,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:20:30,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:20:30,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (1/1) ... [2024-11-18 14:20:30,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:30,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:30,291 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) [2024-11-18 14:20:30,295 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 [2024-11-18 14:20:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:20:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:20:30,344 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:20:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:20:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:20:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:20:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:20:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:20:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:20:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:20:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:20:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:20:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:20:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:20:30,407 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:20:30,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:20:30,611 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-18 14:20:30,611 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:20:30,624 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:20:30,624 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:20:30,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:30 BoogieIcfgContainer [2024-11-18 14:20:30,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:20:30,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:20:30,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:20:30,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:20:30,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:20:29" (1/3) ... [2024-11-18 14:20:30,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ac5dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:30, skipping insertion in model container [2024-11-18 14:20:30,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:30" (2/3) ... [2024-11-18 14:20:30,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ac5dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:30, skipping insertion in model container [2024-11-18 14:20:30,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:30" (3/3) ... [2024-11-18 14:20:30,633 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product06.cil.c [2024-11-18 14:20:30,646 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:20:30,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:20:30,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:20:30,713 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;@6b1c8b36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:20:30,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:20:30,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 59 states have internal predecessors, (74), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 14:20:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 14:20:30,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:30,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:30,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:30,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1379054688, now seen corresponding path program 1 times [2024-11-18 14:20:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130932444] [2024-11-18 14:20:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130932444] [2024-11-18 14:20:30,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130932444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:30,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:30,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:30,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255236022] [2024-11-18 14:20:30,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:30,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:20:30,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:20:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:20:30,933 INFO L87 Difference]: Start difference. First operand has 68 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 59 states have internal predecessors, (74), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) 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) [2024-11-18 14:20:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:30,966 INFO L93 Difference]: Finished difference Result 128 states and 175 transitions. [2024-11-18 14:20:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:20:30,970 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 [2024-11-18 14:20:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:30,982 INFO L225 Difference]: With dead ends: 128 [2024-11-18 14:20:30,982 INFO L226 Difference]: Without dead ends: 59 [2024-11-18 14:20:30,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:20:31,006 INFO L432 NwaCegarLoop]: 84 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, 84 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 [2024-11-18 14:20:31,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-18 14:20:31,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-18 14:20:31,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 14:20:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2024-11-18 14:20:31,052 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 19 [2024-11-18 14:20:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,053 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2024-11-18 14:20:31,054 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) [2024-11-18 14:20:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2024-11-18 14:20:31,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:20:31,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:31,056 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] [2024-11-18 14:20:31,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:20:31,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:31,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash -320924759, now seen corresponding path program 1 times [2024-11-18 14:20:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:31,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853914888] [2024-11-18 14:20:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:31,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:31,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853914888] [2024-11-18 14:20:31,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853914888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:31,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:31,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:20:31,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775566377] [2024-11-18 14:20:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:31,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:31,153 INFO L87 Difference]: Start difference. First operand 59 states and 75 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) [2024-11-18 14:20:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:31,161 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2024-11-18 14:20:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:31,162 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 [2024-11-18 14:20:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:31,162 INFO L225 Difference]: With dead ends: 83 [2024-11-18 14:20:31,162 INFO L226 Difference]: Without dead ends: 50 [2024-11-18 14:20:31,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:31,164 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 13 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 107 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 [2024-11-18 14:20:31,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 107 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-18 14:20:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-18 14:20:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 14:20:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2024-11-18 14:20:31,173 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 20 [2024-11-18 14:20:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,173 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2024-11-18 14:20:31,174 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) [2024-11-18 14:20:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2024-11-18 14:20:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:20:31,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:31,175 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] [2024-11-18 14:20:31,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:20:31,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:31,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:31,176 INFO L85 PathProgramCache]: Analyzing trace with hash -810441205, now seen corresponding path program 1 times [2024-11-18 14:20:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:31,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296727066] [2024-11-18 14:20:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:31,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:31,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:31,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296727066] [2024-11-18 14:20:31,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296727066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:31,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:31,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365679658] [2024-11-18 14:20:31,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:31,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:31,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:31,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:31,275 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-18 14:20:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:31,322 INFO L93 Difference]: Finished difference Result 93 states and 120 transitions. [2024-11-18 14:20:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:31,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 25 [2024-11-18 14:20:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:31,323 INFO L225 Difference]: With dead ends: 93 [2024-11-18 14:20:31,323 INFO L226 Difference]: Without dead ends: 50 [2024-11-18 14:20:31,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:31,325 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 57 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:31,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 175 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-18 14:20:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-18 14:20:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.3) internal successors, (52), 45 states have internal predecessors, (52), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 14:20:31,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2024-11-18 14:20:31,331 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 25 [2024-11-18 14:20:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,331 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2024-11-18 14:20:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-18 14:20:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2024-11-18 14:20:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 14:20:31,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:31,332 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] [2024-11-18 14:20:31,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:20:31,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:31,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 475641660, now seen corresponding path program 1 times [2024-11-18 14:20:31,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:31,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973248060] [2024-11-18 14:20:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:31,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:31,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:31,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973248060] [2024-11-18 14:20:31,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973248060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:31,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:31,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624078281] [2024-11-18 14:20:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:31,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:31,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:31,436 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-18 14:20:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:31,485 INFO L93 Difference]: Finished difference Result 129 states and 169 transitions. [2024-11-18 14:20:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:31,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2024-11-18 14:20:31,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:31,491 INFO L225 Difference]: With dead ends: 129 [2024-11-18 14:20:31,491 INFO L226 Difference]: Without dead ends: 86 [2024-11-18 14:20:31,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:31,492 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 28 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:31,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 219 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-18 14:20:31,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-18 14:20:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 76 states have internal predecessors, (88), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-18 14:20:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 109 transitions. [2024-11-18 14:20:31,508 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 109 transitions. Word has length 30 [2024-11-18 14:20:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,508 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 109 transitions. [2024-11-18 14:20:31,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-18 14:20:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 109 transitions. [2024-11-18 14:20:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:20:31,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:31,509 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] [2024-11-18 14:20:31,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:20:31,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:31,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash 557208599, now seen corresponding path program 1 times [2024-11-18 14:20:31,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:31,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928179554] [2024-11-18 14:20:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:31,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:31,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:31,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928179554] [2024-11-18 14:20:31,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928179554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:31,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:31,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:20:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632901389] [2024-11-18 14:20:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:31,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:31,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:31,552 INFO L87 Difference]: Start difference. First operand 86 states and 109 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), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:31,581 INFO L93 Difference]: Finished difference Result 227 states and 297 transitions. [2024-11-18 14:20:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:31,581 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), 1 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 [2024-11-18 14:20:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:31,582 INFO L225 Difference]: With dead ends: 227 [2024-11-18 14:20:31,583 INFO L226 Difference]: Without dead ends: 148 [2024-11-18 14:20:31,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:31,584 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 44 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:31,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 150 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-18 14:20:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-18 14:20:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 124 states have internal predecessors, (148), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (22), 14 states have call predecessors, (22), 16 states have call successors, (22) [2024-11-18 14:20:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 186 transitions. [2024-11-18 14:20:31,607 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 186 transitions. Word has length 32 [2024-11-18 14:20:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,608 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 186 transitions. [2024-11-18 14:20:31,608 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), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 186 transitions. [2024-11-18 14:20:31,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-18 14:20:31,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:31,612 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, 1] [2024-11-18 14:20:31,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:20:31,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:31,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2052128610, now seen corresponding path program 1 times [2024-11-18 14:20:31,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:31,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262326252] [2024-11-18 14:20:31,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:31,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:31,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:31,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262326252] [2024-11-18 14:20:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262326252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:31,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:31,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:31,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913119510] [2024-11-18 14:20:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:31,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:31,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:31,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:31,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:31,695 INFO L87 Difference]: Start difference. First operand 146 states and 186 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:31,725 INFO L93 Difference]: Finished difference Result 210 states and 274 transitions. [2024-11-18 14:20:31,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:31,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-11-18 14:20:31,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:31,727 INFO L225 Difference]: With dead ends: 210 [2024-11-18 14:20:31,728 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:20:31,729 INFO L431 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 [2024-11-18 14:20:31,729 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 40 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:31,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 127 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:20:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:20:31,734 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) [2024-11-18 14:20:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:20:31,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2024-11-18 14:20:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:31,737 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:20:31,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:20:31,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:20:31,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:20:31,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:20:31,743 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-18 14:20:31,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:20:32,037 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:20:32,076 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (= |old(~pumpRunning~0)| 0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) [2024-11-18 14:20:32,083 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (not (= 0 ~systemActive~0))) Eliminated clause: (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) [2024-11-18 14:20:32,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:20:32 BoogieIcfgContainer [2024-11-18 14:20:32,088 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:20:32,088 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:20:32,089 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:20:32,089 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:20:32,089 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:30" (3/4) ... [2024-11-18 14:20:32,091 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:20:32,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:20:32,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:20:32,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:20:32,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:20:32,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:20:32,101 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:20:32,102 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:20:32,102 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:20:32,102 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:32,102 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:32,193 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:20:32,194 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:20:32,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:20:32,195 INFO L158 Benchmark]: Toolchain (without parser) took 2448.16ms. Allocated memory is still 159.4MB. Free memory was 129.1MB in the beginning and 87.4MB in the end (delta: 41.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.84ms. Allocated memory is still 159.4MB. Free memory was 129.1MB in the beginning and 108.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.27ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: RCFGBuilder took 373.59ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 87.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,196 INFO L158 Benchmark]: TraceAbstraction took 1460.63ms. Allocated memory is still 159.4MB. Free memory was 87.3MB in the beginning and 95.1MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:32,197 INFO L158 Benchmark]: Witness Printer took 106.55ms. Allocated memory is still 159.4MB. Free memory was 95.1MB in the beginning and 87.4MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:20:32,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.84ms. Allocated memory is still 159.4MB. Free memory was 129.1MB in the beginning and 108.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.27ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.59ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 87.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1460.63ms. Allocated memory is still 159.4MB. Free memory was 87.3MB in the beginning and 95.1MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 106.55ms. Allocated memory is still 159.4MB. Free memory was 95.1MB in the beginning and 87.4MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] - GenericResultAtLocation [Line: 237]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [237] - GenericResultAtLocation [Line: 265]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [265] - GenericResultAtLocation [Line: 409]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [409] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [476] - GenericResultAtLocation [Line: 842]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [842] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [877] * 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: 882]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 862 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 455 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 407 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 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: 419]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 != systemActive)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 296]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 184]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 272]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((((pumpRunning == 0) && ((\old(waterLevel) != 1) || (waterLevel == 1))) && (\old(pumpRunning) == 0)) && (0 != systemActive)) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 172]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:20:32,225 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