./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:00:08,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:00:08,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:00:08,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:00:08,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:00:08,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:00:08,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:00:08,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:00:08,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:00:08,388 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:00:08,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:00:08,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:00:08,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:00:08,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:00:08,390 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:00:08,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:00:08,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:00:08,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:00:08,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:00:08,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:00:08,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:00:08,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:00:08,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:00:08,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:00:08,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:00:08,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:00:08,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:00:08,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:00:08,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:00:08,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:00:08,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:00:08,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:00:08,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:08,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:00:08,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:00:08,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:00:08,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:00:08,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:00:08,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:00:08,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:00:08,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:00:08,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:00:08,403 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e [2024-10-11 03:00:08,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:00:08,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:00:08,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:00:08,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:00:08,707 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:00:08,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2024-10-11 03:00:10,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:00:10,378 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:00:10,378 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2024-10-11 03:00:10,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/afe9332e3/c3fff9629429407a9ff1b1b02ed638f5/FLAGb6ebf0763 [2024-10-11 03:00:10,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/afe9332e3/c3fff9629429407a9ff1b1b02ed638f5 [2024-10-11 03:00:10,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:00:10,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:00:10,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:10,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:00:10,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:00:10,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:10" (1/1) ... [2024-10-11 03:00:10,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5336b096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:10, skipping insertion in model container [2024-10-11 03:00:10,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:10" (1/1) ... [2024-10-11 03:00:10,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:00:11,086 WARN L248 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_product20.cil.c[14361,14374] [2024-10-11 03:00:11,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:11,126 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:00:11,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-11 03:00:11,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-11 03:00:11,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [183] [2024-10-11 03:00:11,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [282] [2024-10-11 03:00:11,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [648] [2024-10-11 03:00:11,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [657] [2024-10-11 03:00:11,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [684] [2024-10-11 03:00:11,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [863] [2024-10-11 03:00:11,203 WARN L248 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_product20.cil.c[14361,14374] [2024-10-11 03:00:11,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:11,239 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:00:11,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11 WrapperNode [2024-10-11 03:00:11,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:11,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:11,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:00:11,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:00:11,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,285 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 172 [2024-10-11 03:00:11,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:11,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:00:11,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:00:11,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:00:11,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,321 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]. [2024-10-11 03:00:11,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:00:11,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:00:11,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:00:11,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:00:11,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (1/1) ... [2024-10-11 03:00:11,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:11,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:11,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:00:11,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:00:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:00:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:00:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:00:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:00:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:00:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:00:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:00:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:00:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:00:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:00:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:00:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:00:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:00:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:00:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:00:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:00:11,545 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:00:11,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:00:11,838 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-11 03:00:11,838 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:00:11,907 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:00:11,907 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:00:11,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:11 BoogieIcfgContainer [2024-10-11 03:00:11,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:00:11,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:00:11,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:00:11,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:00:11,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:00:10" (1/3) ... [2024-10-11 03:00:11,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2b17db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:11, skipping insertion in model container [2024-10-11 03:00:11,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:11" (2/3) ... [2024-10-11 03:00:11,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2b17db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:11, skipping insertion in model container [2024-10-11 03:00:11,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:11" (3/3) ... [2024-10-11 03:00:11,918 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2024-10-11 03:00:11,936 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:00:11,936 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:00:12,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:00:12,006 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;@3d4dff23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:00:12,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:00:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 47 states have internal predecessors, (63), 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) [2024-10-11 03:00:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 03:00:12,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:12,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:12,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:12,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1110484516, now seen corresponding path program 1 times [2024-10-11 03:00:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:12,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245082713] [2024-10-11 03:00:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245082713] [2024-10-11 03:00:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245082713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:12,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:12,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:12,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286418425] [2024-10-11 03:00:12,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:12,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:00:12,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:12,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:00:12,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:12,241 INFO L87 Difference]: Start difference. First operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 47 states have internal predecessors, (63), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:12,313 INFO L93 Difference]: Finished difference Result 114 states and 167 transitions. [2024-10-11 03:00:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:00:12,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 03:00:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:12,323 INFO L225 Difference]: With dead ends: 114 [2024-10-11 03:00:12,323 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 03:00:12,326 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 [2024-10-11 03:00:12,330 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:12,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 03:00:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-11 03:00:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 43 states have internal predecessors, (53), 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) [2024-10-11 03:00:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2024-10-11 03:00:12,365 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 12 [2024-10-11 03:00:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:12,365 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-10-11 03:00:12,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-10-11 03:00:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 03:00:12,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:12,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:12,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:00:12,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:12,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:12,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1112025027, now seen corresponding path program 1 times [2024-10-11 03:00:12,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730201317] [2024-10-11 03:00:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:12,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:12,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:12,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730201317] [2024-10-11 03:00:12,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730201317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:12,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:12,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:12,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200033890] [2024-10-11 03:00:12,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:12,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:12,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:12,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:12,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:12,510 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:12,546 INFO L93 Difference]: Finished difference Result 76 states and 102 transitions. [2024-10-11 03:00:12,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:12,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 03:00:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:12,549 INFO L225 Difference]: With dead ends: 76 [2024-10-11 03:00:12,550 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 03:00:12,550 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 [2024-10-11 03:00:12,551 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 14 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:12,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 84 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 03:00:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-11 03:00:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.46875) internal successors, (47), 38 states have internal predecessors, (47), 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) [2024-10-11 03:00:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2024-10-11 03:00:12,566 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 13 [2024-10-11 03:00:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:12,566 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-10-11 03:00:12,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-10-11 03:00:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 03:00:12,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:12,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:12,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:00:12,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:12,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 757486854, now seen corresponding path program 1 times [2024-10-11 03:00:12,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637835745] [2024-10-11 03:00:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:12,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637835745] [2024-10-11 03:00:12,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637835745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:12,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:12,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:12,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110606727] [2024-10-11 03:00:12,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:12,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:12,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:12,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:12,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:12,705 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-11 03:00:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:12,770 INFO L93 Difference]: Finished difference Result 131 states and 180 transitions. [2024-10-11 03:00:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 16 [2024-10-11 03:00:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:12,777 INFO L225 Difference]: With dead ends: 131 [2024-10-11 03:00:12,778 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 03:00:12,779 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 [2024-10-11 03:00:12,784 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 55 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:12,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 103 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 03:00:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2024-10-11 03:00:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 71 states have internal predecessors, (89), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 03:00:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2024-10-11 03:00:12,802 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 16 [2024-10-11 03:00:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:12,802 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2024-10-11 03:00:12,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-11 03:00:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2024-10-11 03:00:12,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 03:00:12,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:12,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:12,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:00:12,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:12,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:12,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1150887249, now seen corresponding path program 1 times [2024-10-11 03:00:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:12,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52404014] [2024-10-11 03:00:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:12,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:12,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:12,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52404014] [2024-10-11 03:00:12,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52404014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:12,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:12,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640562725] [2024-10-11 03:00:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:12,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:12,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:12,955 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 03:00:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:13,058 INFO L93 Difference]: Finished difference Result 241 states and 344 transitions. [2024-10-11 03:00:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:13,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2024-10-11 03:00:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:13,062 INFO L225 Difference]: With dead ends: 241 [2024-10-11 03:00:13,065 INFO L226 Difference]: Without dead ends: 158 [2024-10-11 03:00:13,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:13,071 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 35 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:13,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 140 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-11 03:00:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-10-11 03:00:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.4504504504504505) internal successors, (161), 130 states have internal predecessors, (161), 28 states have call successors, (28), 20 states have call predecessors, (28), 18 states have return successors, (30), 16 states have call predecessors, (30), 28 states have call successors, (30) [2024-10-11 03:00:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 219 transitions. [2024-10-11 03:00:13,113 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 219 transitions. Word has length 19 [2024-10-11 03:00:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:13,113 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 219 transitions. [2024-10-11 03:00:13,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 03:00:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 219 transitions. [2024-10-11 03:00:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:00:13,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:13,118 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] [2024-10-11 03:00:13,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:00:13,119 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1905253708, now seen corresponding path program 1 times [2024-10-11 03:00:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009426767] [2024-10-11 03:00:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:13,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009426767] [2024-10-11 03:00:13,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009426767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:13,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:13,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528461870] [2024-10-11 03:00:13,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:13,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:13,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:13,209 INFO L87 Difference]: Start difference. First operand 158 states and 219 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:00:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:13,270 INFO L93 Difference]: Finished difference Result 276 states and 384 transitions. [2024-10-11 03:00:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:13,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 21 [2024-10-11 03:00:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:13,272 INFO L225 Difference]: With dead ends: 276 [2024-10-11 03:00:13,273 INFO L226 Difference]: Without dead ends: 120 [2024-10-11 03:00:13,274 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 [2024-10-11 03:00:13,275 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:13,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:13,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-11 03:00:13,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-10-11 03:00:13,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 94 states have internal predecessors, (115), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 03:00:13,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2024-10-11 03:00:13,299 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 21 [2024-10-11 03:00:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:13,300 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2024-10-11 03:00:13,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:00:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2024-10-11 03:00:13,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:00:13,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:13,301 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] [2024-10-11 03:00:13,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:00:13,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:13,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash 223413513, now seen corresponding path program 1 times [2024-10-11 03:00:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161949121] [2024-10-11 03:00:13,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:13,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:13,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:13,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161949121] [2024-10-11 03:00:13,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161949121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:13,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:13,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:00:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921163469] [2024-10-11 03:00:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:13,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:00:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:00:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:13,414 INFO L87 Difference]: Start difference. First operand 118 states and 147 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:13,526 INFO L93 Difference]: Finished difference Result 122 states and 151 transitions. [2024-10-11 03:00:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:00:13,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2024-10-11 03:00:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:13,528 INFO L225 Difference]: With dead ends: 122 [2024-10-11 03:00:13,528 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:13,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:13,530 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:13,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:13,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:13,534 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) [2024-10-11 03:00:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:13,534 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-11 03:00:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:13,534 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:13,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:13,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:13,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:13,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:13,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:00:13,542 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 03:00:13,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:13,937 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:13,965 WARN L155 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) [2024-10-11 03:00:13,968 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:13,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:13 BoogieIcfgContainer [2024-10-11 03:00:13,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:13,970 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:13,970 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:13,972 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:13,973 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:11" (3/4) ... [2024-10-11 03:00:13,975 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:13,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:13,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:13,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:13,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:13,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:13,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:13,990 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-10-11 03:00:13,990 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:13,992 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:13,993 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:13,993 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:14,101 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:14,102 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:14,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:14,103 INFO L158 Benchmark]: Toolchain (without parser) took 3373.35ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 92.9MB in the beginning and 99.7MB in the end (delta: -6.8MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,103 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 109.4MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:14,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.03ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 71.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.06ms. Allocated memory is still 146.8MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,104 INFO L158 Benchmark]: Boogie Preprocessor took 54.05ms. Allocated memory is still 146.8MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,104 INFO L158 Benchmark]: RCFGBuilder took 566.72ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 67.3MB in the beginning and 144.0MB in the end (delta: -76.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,105 INFO L158 Benchmark]: TraceAbstraction took 2058.46ms. Allocated memory is still 190.8MB. Free memory was 144.0MB in the beginning and 107.1MB in the end (delta: 36.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,105 INFO L158 Benchmark]: Witness Printer took 132.22ms. Allocated memory is still 190.8MB. Free memory was 107.1MB in the beginning and 99.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 03:00:14,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 109.4MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.03ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 71.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.06ms. Allocated memory is still 146.8MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.05ms. Allocated memory is still 146.8MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 566.72ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 67.3MB in the beginning and 144.0MB in the end (delta: -76.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2058.46ms. Allocated memory is still 190.8MB. Free memory was 144.0MB in the beginning and 107.1MB in the end (delta: 36.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 132.22ms. Allocated memory is still 190.8MB. Free memory was 107.1MB in the beginning and 99.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 183]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [183] - GenericResultAtLocation [Line: 282]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [282] - GenericResultAtLocation [Line: 648]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [648] - GenericResultAtLocation [Line: 657]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [657] - GenericResultAtLocation [Line: 684]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [684] - GenericResultAtLocation [Line: 863]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [863] * 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: 653]: 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, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 170 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 272 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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: 873]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 757]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 716]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 121]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 692]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) - ProcedureContractResult [Line: 186]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 109]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:14,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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