./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product27.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_product27.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 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:20:43,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:20:43,510 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:20:43,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:20:43,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:20:43,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:20:43,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:20:43,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:20:43,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:20:43,541 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:20:43,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:20:43,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:20:43,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:20:43,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:20:43,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:20:43,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:20:43,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:20:43,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:20:43,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:20:43,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:20:43,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:20:43,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:20:43,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:20:43,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:20:43,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:20:43,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:20:43,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:20:43,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:20:43,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:20:43,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:20:43,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:20:43,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:20:43,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:43,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:20:43,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:20:43,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:20:43,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:20:43,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:20:43,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:20:43,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:20:43,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:20:43,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:20:43,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2024-11-18 14:20:43,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:20:43,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:20:43,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:20:43,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:20:43,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:20:43,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2024-11-18 14:20:45,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:20:45,281 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:20:45,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2024-11-18 14:20:45,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71a702c2/e8b6a409529d471b8f8ce637266e85ca/FLAGcbfc6c7c4 [2024-11-18 14:20:45,306 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71a702c2/e8b6a409529d471b8f8ce637266e85ca [2024-11-18 14:20:45,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:20:45,309 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:20:45,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:45,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:20:45,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:20:45,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a8852a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45, skipping insertion in model container [2024-11-18 14:20:45,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:20:45,536 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_product27.cil.c[2897,2910] [2024-11-18 14:20:45,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:45,606 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:20:45,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-18 14:20:45,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] [2024-11-18 14:20:45,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] [2024-11-18 14:20:45,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [190] [2024-11-18 14:20:45,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-11-18 14:20:45,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [351] [2024-11-18 14:20:45,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [538] [2024-11-18 14:20:45,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [573] [2024-11-18 14:20:45,628 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_product27.cil.c[2897,2910] [2024-11-18 14:20:45,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:45,702 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:20:45,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45 WrapperNode [2024-11-18 14:20:45,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:45,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:45,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:20:45,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:20:45,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,746 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 169 [2024-11-18 14:20:45,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:45,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:20:45,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:20:45,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:20:45,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,776 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 14:20:45,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:20:45,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:20:45,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:20:45,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:20:45,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (1/1) ... [2024-11-18 14:20:45,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:45,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:45,826 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 14:20:45,828 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 14:20:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:20:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:20:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:20:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:20:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:20:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:20:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:20:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:20:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:20:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:20:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:20:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:20:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:20:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:20:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:20:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:20:45,948 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:20:45,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:20:46,141 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-18 14:20:46,142 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:20:46,153 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:20:46,154 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:20:46,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:46 BoogieIcfgContainer [2024-11-18 14:20:46,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:20:46,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:20:46,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:20:46,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:20:46,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:20:45" (1/3) ... [2024-11-18 14:20:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:46, skipping insertion in model container [2024-11-18 14:20:46,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:45" (2/3) ... [2024-11-18 14:20:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:46, skipping insertion in model container [2024-11-18 14:20:46,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:46" (3/3) ... [2024-11-18 14:20:46,163 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2024-11-18 14:20:46,178 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:20:46,179 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:20:46,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:20:46,232 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;@470127ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:20:46,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:20:46,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 14:20:46,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 14:20:46,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:46,243 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 14:20:46,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:46,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:46,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1407183598, now seen corresponding path program 1 times [2024-11-18 14:20:46,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:46,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890455754] [2024-11-18 14:20:46,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:46,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:46,394 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 14:20:46,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:46,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890455754] [2024-11-18 14:20:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890455754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:46,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:46,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:46,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626237610] [2024-11-18 14:20:46,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:46,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:20:46,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:46,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:20:46,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:20:46,421 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:46,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:46,441 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2024-11-18 14:20:46,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:20:46,442 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 14:20:46,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:46,448 INFO L225 Difference]: With dead ends: 144 [2024-11-18 14:20:46,448 INFO L226 Difference]: Without dead ends: 67 [2024-11-18 14:20:46,451 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 14:20:46,453 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:46,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-18 14:20:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-18 14:20:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:20:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2024-11-18 14:20:46,485 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2024-11-18 14:20:46,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:46,485 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2024-11-18 14:20:46,486 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 14:20:46,486 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2024-11-18 14:20:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:20:46,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:46,487 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 14:20:46,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:20:46,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:46,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 321226629, now seen corresponding path program 1 times [2024-11-18 14:20:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817438460] [2024-11-18 14:20:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:46,641 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 14:20:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:46,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817438460] [2024-11-18 14:20:46,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817438460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:46,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:46,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:20:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411500976] [2024-11-18 14:20:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:46,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:46,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:46,648 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:46,667 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2024-11-18 14:20:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:46,668 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 14:20:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:46,669 INFO L225 Difference]: With dead ends: 96 [2024-11-18 14:20:46,669 INFO L226 Difference]: Without dead ends: 58 [2024-11-18 14:20:46,670 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 14:20:46,671 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:46,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-18 14:20:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-18 14:20:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 14:20:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2024-11-18 14:20:46,677 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2024-11-18 14:20:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:46,678 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2024-11-18 14:20:46,678 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 14:20:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2024-11-18 14:20:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 14:20:46,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:46,679 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] [2024-11-18 14:20:46,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:20:46,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:46,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:46,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1713085083, now seen corresponding path program 1 times [2024-11-18 14:20:46,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:46,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757159465] [2024-11-18 14:20:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:46,811 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 14:20:46,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:46,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757159465] [2024-11-18 14:20:46,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757159465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:46,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:46,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:46,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218473646] [2024-11-18 14:20:46,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:46,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:20:46,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:46,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:20:46,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:20:46,816 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:46,951 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2024-11-18 14:20:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:20:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-18 14:20:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:46,953 INFO L225 Difference]: With dead ends: 197 [2024-11-18 14:20:46,953 INFO L226 Difference]: Without dead ends: 146 [2024-11-18 14:20:46,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:20:46,954 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 121 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:46,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 352 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:20:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-18 14:20:46,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2024-11-18 14:20:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-18 14:20:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-11-18 14:20:46,972 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2024-11-18 14:20:46,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:46,973 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-11-18 14:20:46,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-11-18 14:20:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 14:20:46,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:46,974 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] [2024-11-18 14:20:46,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:20:46,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1716928239, now seen corresponding path program 1 times [2024-11-18 14:20:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261399545] [2024-11-18 14:20:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:47,104 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 14:20:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261399545] [2024-11-18 14:20:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261399545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:20:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069657354] [2024-11-18 14:20:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:47,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:20:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:20:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:20:47,107 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:47,310 INFO L93 Difference]: Finished difference Result 514 states and 714 transitions. [2024-11-18 14:20:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:20:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 14:20:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:47,314 INFO L225 Difference]: With dead ends: 514 [2024-11-18 14:20:47,314 INFO L226 Difference]: Without dead ends: 381 [2024-11-18 14:20:47,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:20:47,319 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 105 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:47,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 436 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:20:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-18 14:20:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2024-11-18 14:20:47,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 284 states have (on average 1.3485915492957747) internal successors, (383), 321 states have internal predecessors, (383), 51 states have call successors, (51), 39 states have call predecessors, (51), 39 states have return successors, (65), 33 states have call predecessors, (65), 51 states have call successors, (65) [2024-11-18 14:20:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 499 transitions. [2024-11-18 14:20:47,374 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 499 transitions. Word has length 28 [2024-11-18 14:20:47,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:47,375 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 499 transitions. [2024-11-18 14:20:47,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 499 transitions. [2024-11-18 14:20:47,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 14:20:47,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:47,380 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 14:20:47,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:20:47,380 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:47,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:47,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1150482326, now seen corresponding path program 1 times [2024-11-18 14:20:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:47,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935803693] [2024-11-18 14:20:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:47,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:47,451 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 14:20:47,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:47,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935803693] [2024-11-18 14:20:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935803693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:47,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811073141] [2024-11-18 14:20:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:47,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:47,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:47,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:47,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:47,455 INFO L87 Difference]: Start difference. First operand 375 states and 499 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:47,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:47,478 INFO L93 Difference]: Finished difference Result 650 states and 879 transitions. [2024-11-18 14:20:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:47,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-18 14:20:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:47,480 INFO L225 Difference]: With dead ends: 650 [2024-11-18 14:20:47,482 INFO L226 Difference]: Without dead ends: 282 [2024-11-18 14:20:47,484 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 14:20:47,484 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:47,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-18 14:20:47,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 276. [2024-11-18 14:20:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 231 states have internal predecessors, (272), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (36), 30 states have call predecessors, (36), 30 states have call successors, (36) [2024-11-18 14:20:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 338 transitions. [2024-11-18 14:20:47,518 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 338 transitions. Word has length 30 [2024-11-18 14:20:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:47,519 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 338 transitions. [2024-11-18 14:20:47,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 338 transitions. [2024-11-18 14:20:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 14:20:47,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:47,524 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:47,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:20:47,525 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:47,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1844755754, now seen corresponding path program 1 times [2024-11-18 14:20:47,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:47,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948907648] [2024-11-18 14:20:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:47,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:20:47,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948907648] [2024-11-18 14:20:47,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948907648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:20:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698522771] [2024-11-18 14:20:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:47,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:20:47,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:47,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:20:47,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:20:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:47,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:20:47,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:20:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:20:47,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:20:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698522771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:20:48,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:20:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2024-11-18 14:20:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710249077] [2024-11-18 14:20:48,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:20:48,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:20:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:20:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:20:48,061 INFO L87 Difference]: Start difference. First operand 276 states and 338 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:20:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,251 INFO L93 Difference]: Finished difference Result 373 states and 455 transitions. [2024-11-18 14:20:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:20:48,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2024-11-18 14:20:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,252 INFO L225 Difference]: With dead ends: 373 [2024-11-18 14:20:48,252 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:20:48,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:20:48,253 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:48,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 362 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:20:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:20:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:20:48,254 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 14:20:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:20:48,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-18 14:20:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,254 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:20:48,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:20:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:20:48,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:20:48,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:20:48,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:20:48,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-18 14:20:48,462 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-18 14:20:48,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:20:49,154 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:20:49,183 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) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) [2024-11-18 14:20:49,186 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:20:49,189 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)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) [2024-11-18 14:20:49,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:20:49,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:20:49 BoogieIcfgContainer [2024-11-18 14:20:49,190 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:20:49,190 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:20:49,190 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:20:49,194 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:20:49,194 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:46" (3/4) ... [2024-11-18 14:20:49,196 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:20:49,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:20:49,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:20:49,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:20:49,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:20:49,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:20:49,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:20:49,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:20:49,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:20:49,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:20:49,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:49,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:49,300 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:20:49,301 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:20:49,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:20:49,301 INFO L158 Benchmark]: Toolchain (without parser) took 3992.69ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 111.2MB in the beginning and 102.8MB in the end (delta: 8.4MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,302 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:49,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.56ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 89.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 144.7MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,303 INFO L158 Benchmark]: Boogie Preprocessor took 47.32ms. Allocated memory is still 144.7MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,303 INFO L158 Benchmark]: RCFGBuilder took 360.48ms. Allocated memory is still 144.7MB. Free memory was 85.2MB in the beginning and 68.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,304 INFO L158 Benchmark]: TraceAbstraction took 3032.32ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 67.9MB in the beginning and 110.1MB in the end (delta: -42.2MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,304 INFO L158 Benchmark]: Witness Printer took 110.70ms. Allocated memory is still 188.7MB. Free memory was 110.1MB in the beginning and 102.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,305 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.56ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 89.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 144.7MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.32ms. Allocated memory is still 144.7MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.48ms. Allocated memory is still 144.7MB. Free memory was 85.2MB in the beginning and 68.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3032.32ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 67.9MB in the beginning and 110.1MB in the end (delta: -42.2MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Witness Printer took 110.70ms. Allocated memory is still 188.7MB. Free memory was 110.1MB in the beginning and 102.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [190] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 351]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [351] - GenericResultAtLocation [Line: 538]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [538] - GenericResultAtLocation [Line: 573]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [573] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 1419 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 993 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 426 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=375occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 207 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 44/54 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: 295]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) - InvariantResult [Line: 294]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 440]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 381]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (0 != systemActive))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 221]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: ((((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 357]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((((((pumpRunning == 0) && ((\old(waterLevel) != 1) || (waterLevel == 1))) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) && (\old(waterLevel) <= waterLevel)) && ((((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: 209]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (((((pumpRunning == 0) && (2 <= waterLevel)) && (1 <= \old(waterLevel))) && (\old(waterLevel) <= waterLevel)) && (((((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 14:20:49,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE