./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product28.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_product28.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 55e5a3fffd3d06d466040a49171ceaa2c85a9bef51e649104f1e437fbb462cec --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:20:44,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:20:44,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:20:44,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:20:44,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:20:44,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:20:44,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:20:44,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:20:44,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:20:44,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:20:44,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:20:44,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:20:44,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:20:44,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:20:44,527 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:20:44,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:20:44,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:20:44,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:20:44,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:20:44,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:20:44,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:20:44,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:20:44,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:20:44,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:20:44,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:20:44,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:20:44,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:20:44,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:20:44,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:20:44,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:20:44,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:20:44,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:20:44,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:44,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:20:44,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:20:44,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:20:44,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:20:44,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:20:44,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:20:44,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:20:44,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:20:44,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:20:44,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55e5a3fffd3d06d466040a49171ceaa2c85a9bef51e649104f1e437fbb462cec [2024-11-18 14:20:44,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:20:44,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:20:44,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:20:44,895 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:20:44,896 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:20:44,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2024-11-18 14:20:46,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:20:46,553 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:20:46,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2024-11-18 14:20:46,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991bd8d72/b4fa1aa927ba4a87a2c739e1ef7e9cf5/FLAG497312b43 [2024-11-18 14:20:46,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991bd8d72/b4fa1aa927ba4a87a2c739e1ef7e9cf5 [2024-11-18 14:20:46,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:20:46,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:20:46,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:46,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:20:46,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:20:46,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:46" (1/1) ... [2024-11-18 14:20:46,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b9441b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:46, skipping insertion in model container [2024-11-18 14:20:46,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:46" (1/1) ... [2024-11-18 14:20:46,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:20:46,822 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_product28.cil.c[1605,1618] [2024-11-18 14:20:46,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:46,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:20:46,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-18 14:20:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2024-11-18 14:20:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] [2024-11-18 14:20:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [452] [2024-11-18 14:20:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [490] [2024-11-18 14:20:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [693] [2024-11-18 14:20:46,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [784] [2024-11-18 14:20:46,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [881] [2024-11-18 14:20:47,001 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_product28.cil.c[1605,1618] [2024-11-18 14:20:47,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:47,082 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:20:47,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47 WrapperNode [2024-11-18 14:20:47,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:47,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:47,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:20:47,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:20:47,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,135 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 172 [2024-11-18 14:20:47,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:47,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:20:47,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:20:47,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:20:47,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,184 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 14:20:47,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:20:47,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:20:47,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:20:47,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:20:47,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (1/1) ... [2024-11-18 14:20:47,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:47,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:47,293 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 14:20:47,300 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 14:20:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:20:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:20:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:20:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:20:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:20:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:20:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:20:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:20:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:20:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:20:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:20:47,403 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:20:47,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:20:47,629 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-18 14:20:47,630 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:20:47,645 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:20:47,645 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:20:47,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:47 BoogieIcfgContainer [2024-11-18 14:20:47,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:20:47,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:20:47,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:20:47,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:20:47,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:20:46" (1/3) ... [2024-11-18 14:20:47,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122c2ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:47, skipping insertion in model container [2024-11-18 14:20:47,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:47" (2/3) ... [2024-11-18 14:20:47,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122c2ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:47, skipping insertion in model container [2024-11-18 14:20:47,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:47" (3/3) ... [2024-11-18 14:20:47,655 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2024-11-18 14:20:47,670 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:20:47,670 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:20:47,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:20:47,739 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;@3bf16e14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:20:47,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:20:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 66 states have internal predecessors, (82), 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 14:20:47,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 14:20:47,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:47,753 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 14:20:47,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:47,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:47,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1648394347, now seen corresponding path program 1 times [2024-11-18 14:20:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:47,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849278986] [2024-11-18 14:20:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:47,969 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 14:20:47,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:47,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849278986] [2024-11-18 14:20:47,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849278986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:47,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:47,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:47,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055996527] [2024-11-18 14:20:47,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:47,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:20:47,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:20:48,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:20:48,002 INFO L87 Difference]: Start difference. First operand has 77 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 66 states have internal predecessors, (82), 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 14:20:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,026 INFO L93 Difference]: Finished difference Result 146 states and 199 transitions. [2024-11-18 14:20:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:20:48,028 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 14:20:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,035 INFO L225 Difference]: With dead ends: 146 [2024-11-18 14:20:48,035 INFO L226 Difference]: Without dead ends: 68 [2024-11-18 14:20:48,039 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 14:20:48,042 INFO L432 NwaCegarLoop]: 96 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, 96 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 14:20:48,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-18 14:20:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-18 14:20:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 58 states have internal predecessors, (68), 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 14:20:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2024-11-18 14:20:48,083 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 19 [2024-11-18 14:20:48,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,084 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2024-11-18 14:20:48,084 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 14:20:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-11-18 14:20:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:20:48,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:48,086 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 14:20:48,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:20:48,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:48,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1560615980, now seen corresponding path program 1 times [2024-11-18 14:20:48,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:48,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869195868] [2024-11-18 14:20:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:48,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:48,193 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 14:20:48,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:48,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869195868] [2024-11-18 14:20:48,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869195868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:48,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:48,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:20:48,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444703813] [2024-11-18 14:20:48,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:48,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:48,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:48,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:48,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:48,198 INFO L87 Difference]: Start difference. First operand 68 states and 87 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 14:20:48,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,218 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2024-11-18 14:20:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:48,219 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 14:20:48,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,223 INFO L225 Difference]: With dead ends: 97 [2024-11-18 14:20:48,224 INFO L226 Difference]: Without dead ends: 59 [2024-11-18 14:20:48,224 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 14:20:48,226 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 126 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 14:20:48,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-18 14:20:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-18 14:20:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.326086956521739) internal successors, (61), 52 states have internal predecessors, (61), 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 14:20:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2024-11-18 14:20:48,239 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 20 [2024-11-18 14:20:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,239 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2024-11-18 14:20:48,239 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 14:20:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2024-11-18 14:20:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:20:48,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:48,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:48,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:20:48,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:48,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash -554755590, now seen corresponding path program 1 times [2024-11-18 14:20:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:48,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839252316] [2024-11-18 14:20:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:48,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:48,365 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 14:20:48,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:48,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839252316] [2024-11-18 14:20:48,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839252316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:48,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:48,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394040337] [2024-11-18 14:20:48,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:48,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:48,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:48,368 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,399 INFO L93 Difference]: Finished difference Result 161 states and 210 transitions. [2024-11-18 14:20:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:48,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-18 14:20:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,403 INFO L225 Difference]: With dead ends: 161 [2024-11-18 14:20:48,403 INFO L226 Difference]: Without dead ends: 109 [2024-11-18 14:20:48,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:20:48,405 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 149 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 14:20:48,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-18 14:20:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-11-18 14:20:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 92 states have internal predecessors, (110), 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) [2024-11-18 14:20:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2024-11-18 14:20:48,425 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 25 [2024-11-18 14:20:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,425 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2024-11-18 14:20:48,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2024-11-18 14:20:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 14:20:48,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:48,427 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 14:20:48,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:20:48,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:48,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1630732591, now seen corresponding path program 1 times [2024-11-18 14:20:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:48,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356994910] [2024-11-18 14:20:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:48,591 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 14:20:48,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:48,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356994910] [2024-11-18 14:20:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356994910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:48,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:20:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527008103] [2024-11-18 14:20:48,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:48,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:48,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:48,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:48,595 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,691 INFO L93 Difference]: Finished difference Result 292 states and 395 transitions. [2024-11-18 14:20:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 14:20:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,698 INFO L225 Difference]: With dead ends: 292 [2024-11-18 14:20:48,698 INFO L226 Difference]: Without dead ends: 193 [2024-11-18 14:20:48,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:48,701 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 41 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:48,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 267 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-18 14:20:48,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-18 14:20:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 165 states have internal predecessors, (196), 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) [2024-11-18 14:20:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 254 transitions. [2024-11-18 14:20:48,740 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 254 transitions. Word has length 28 [2024-11-18 14:20:48,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,741 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 254 transitions. [2024-11-18 14:20:48,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:20:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 254 transitions. [2024-11-18 14:20:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 14:20:48,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:48,745 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 14:20:48,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:20:48,746 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:48,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:48,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1914845034, now seen corresponding path program 1 times [2024-11-18 14:20:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:48,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794255879] [2024-11-18 14:20:48,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:48,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:48,858 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 14:20:48,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:48,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794255879] [2024-11-18 14:20:48,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794255879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:48,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:48,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:48,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526030196] [2024-11-18 14:20:48,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:48,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:48,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:48,862 INFO L87 Difference]: Start difference. First operand 193 states and 254 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 14:20:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:48,893 INFO L93 Difference]: Finished difference Result 329 states and 437 transitions. [2024-11-18 14:20:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:48,894 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 14:20:48,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:48,896 INFO L225 Difference]: With dead ends: 329 [2024-11-18 14:20:48,897 INFO L226 Difference]: Without dead ends: 143 [2024-11-18 14:20:48,899 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 14:20:48,899 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50 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 14:20:48,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-18 14:20:48,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2024-11-18 14:20:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 117 states have internal predecessors, (138), 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) [2024-11-18 14:20:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2024-11-18 14:20:48,916 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 30 [2024-11-18 14:20:48,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:48,917 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2024-11-18 14:20:48,917 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 14:20:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2024-11-18 14:20:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:20:48,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:48,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:48,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:20:48,919 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:48,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1848826057, now seen corresponding path program 1 times [2024-11-18 14:20:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:48,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128488751] [2024-11-18 14:20:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:49,016 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 14:20:49,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:49,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128488751] [2024-11-18 14:20:49,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128488751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:49,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:49,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526407759] [2024-11-18 14:20:49,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:49,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:49,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:49,018 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:49,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:49,064 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2024-11-18 14:20:49,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:49,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-18 14:20:49,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:49,066 INFO L225 Difference]: With dead ends: 141 [2024-11-18 14:20:49,066 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:20:49,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:49,067 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 136 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 [2024-11-18 14:20:49,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 136 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:20:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:20:49,069 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 14:20:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:20:49,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2024-11-18 14:20:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:49,069 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:20:49,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:20:49,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:20:49,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:20:49,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:20:49,079 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-18 14:20:49,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:20:49,491 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:20:49,542 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)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-18 14:20:49,549 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))) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-18 14:20:49,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:20:49 BoogieIcfgContainer [2024-11-18 14:20:49,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:20:49,552 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:20:49,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:20:49,553 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:20:49,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:47" (3/4) ... [2024-11-18 14:20:49,556 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:20:49,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:20:49,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:20:49,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:20:49,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:20:49,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:20:49,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:20:49,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:20:49,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:20:49,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:20:49,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:49,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:49,676 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:20:49,677 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:20:49,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:20:49,677 INFO L158 Benchmark]: Toolchain (without parser) took 3095.53ms. Allocated memory is still 186.6MB. Free memory was 110.3MB in the beginning and 88.8MB in the end (delta: 21.4MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,678 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 186.6MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:49,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.66ms. Allocated memory is still 186.6MB. Free memory was 110.3MB in the beginning and 88.8MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.75ms. Allocated memory is still 186.6MB. Free memory was 88.8MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,678 INFO L158 Benchmark]: Boogie Preprocessor took 92.92ms. Allocated memory is still 186.6MB. Free memory was 86.5MB in the beginning and 155.8MB in the end (delta: -69.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,679 INFO L158 Benchmark]: RCFGBuilder took 416.39ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 139.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,679 INFO L158 Benchmark]: TraceAbstraction took 1903.72ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 95.1MB in the end (delta: 43.0MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,679 INFO L158 Benchmark]: Witness Printer took 124.41ms. Allocated memory is still 186.6MB. Free memory was 95.1MB in the beginning and 88.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 14:20:49,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 186.6MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.66ms. Allocated memory is still 186.6MB. Free memory was 110.3MB in the beginning and 88.8MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.75ms. Allocated memory is still 186.6MB. Free memory was 88.8MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.92ms. Allocated memory is still 186.6MB. Free memory was 86.5MB in the beginning and 155.8MB in the end (delta: -69.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * RCFGBuilder took 416.39ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 139.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1903.72ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 95.1MB in the end (delta: 43.0MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Witness Printer took 124.41ms. Allocated memory is still 186.6MB. Free memory was 95.1MB in the beginning and 88.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] - GenericResultAtLocation [Line: 452]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [452] - GenericResultAtLocation [Line: 490]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [490] - GenericResultAtLocation [Line: 693]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [693] - GenericResultAtLocation [Line: 784]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [784] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [881] * 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: 54]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 824 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 403 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 421 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 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: 891]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 796]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - ProcedureContractResult [Line: 587]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((head == \old(head)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 528]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 722]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 786]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 504]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((((pumpRunning == 0) && ((\old(waterLevel) != 1) || (waterLevel == 1))) && (\old(pumpRunning) == 0)) && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 710]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:20:49,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE