./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_product57.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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:16:04,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:16:04,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:16:04,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:16:04,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:16:04,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:16:04,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:16:04,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:16:04,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:16:04,965 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:16:04,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:16:04,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:16:04,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:16:04,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:16:04,968 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:16:04,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:16:04,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:16:04,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:16:04,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:16:04,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:16:04,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:16:04,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:16:04,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:16:04,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:16:04,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:16:04,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:16:04,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:16:04,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:16:04,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:16:04,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:16:04,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:16:04,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:16:04,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2024-11-08 15:16:05,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:16:05,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:16:05,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:16:05,189 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:16:05,190 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:16:05,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2024-11-08 15:16:06,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:16:06,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:16:06,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2024-11-08 15:16:06,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce8ef580/aec9682b196543379bed4ac4baf26ffc/FLAGf0a90188b [2024-11-08 15:16:06,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce8ef580/aec9682b196543379bed4ac4baf26ffc [2024-11-08 15:16:06,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:16:06,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:16:06,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:16:06,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:16:06,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:16:06,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:16:06" (1/1) ... [2024-11-08 15:16:06,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b85b323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:06, skipping insertion in model container [2024-11-08 15:16:06,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:16:06" (1/1) ... [2024-11-08 15:16:06,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:16:07,242 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_product57.cil.c[18691,18704] [2024-11-08 15:16:07,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:16:07,262 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:16:07,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 15:16:07,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-08 15:16:07,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [343] [2024-11-08 15:16:07,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2024-11-08 15:16:07,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [474] [2024-11-08 15:16:07,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [512] [2024-11-08 15:16:07,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [608] [2024-11-08 15:16:07,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [974] [2024-11-08 15:16:07,385 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_product57.cil.c[18691,18704] [2024-11-08 15:16:07,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:16:07,446 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:16:07,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07 WrapperNode [2024-11-08 15:16:07,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:16:07,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:16:07,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:16:07,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:16:07,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,501 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 227 [2024-11-08 15:16:07,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:16:07,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:16:07,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:16:07,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:16:07,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,538 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]. [2024-11-08 15:16:07,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:16:07,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:16:07,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:16:07,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:16:07,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (1/1) ... [2024-11-08 15:16:07,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:16:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:07,594 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) [2024-11-08 15:16:07,598 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 [2024-11-08 15:16:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:16:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:16:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:16:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:16:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:16:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:16:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:16:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:16:07,636 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:16:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:16:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:16:07,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:16:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:16:07,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:16:07,710 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:16:07,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:16:07,895 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-08 15:16:07,896 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:16:07,912 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:16:07,913 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:16:07,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:07 BoogieIcfgContainer [2024-11-08 15:16:07,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:16:07,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:16:07,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:16:07,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:16:07,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:16:06" (1/3) ... [2024-11-08 15:16:07,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7239e1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:16:07, skipping insertion in model container [2024-11-08 15:16:07,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:07" (2/3) ... [2024-11-08 15:16:07,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7239e1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:16:07, skipping insertion in model container [2024-11-08 15:16:07,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:07" (3/3) ... [2024-11-08 15:16:07,920 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2024-11-08 15:16:07,933 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:16:07,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:16:07,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:16:07,983 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;@3e477679, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:16:07,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:16:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 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) [2024-11-08 15:16:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 15:16:07,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:07,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:07,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:08,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1290449034, now seen corresponding path program 1 times [2024-11-08 15:16:08,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137415380] [2024-11-08 15:16:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:08,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137415380] [2024-11-08 15:16:08,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137415380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:08,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:08,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:16:08,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040087903] [2024-11-08 15:16:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:08,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:16:08,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:16:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:16:08,281 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 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) [2024-11-08 15:16:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:08,328 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2024-11-08 15:16:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:16:08,332 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 [2024-11-08 15:16:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:08,348 INFO L225 Difference]: With dead ends: 164 [2024-11-08 15:16:08,349 INFO L226 Difference]: Without dead ends: 77 [2024-11-08 15:16:08,352 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 [2024-11-08 15:16:08,358 INFO L432 NwaCegarLoop]: 109 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, 109 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 [2024-11-08 15:16:08,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-08 15:16:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-08 15:16:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 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) [2024-11-08 15:16:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-11-08 15:16:08,425 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2024-11-08 15:16:08,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:08,430 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-11-08 15:16:08,430 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) [2024-11-08 15:16:08,431 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-11-08 15:16:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 15:16:08,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:08,432 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] [2024-11-08 15:16:08,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:16:08,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:08,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:08,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1967581778, now seen corresponding path program 1 times [2024-11-08 15:16:08,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:08,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534336134] [2024-11-08 15:16:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:08,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:08,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:08,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534336134] [2024-11-08 15:16:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534336134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:08,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:08,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:16:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960541241] [2024-11-08 15:16:08,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:08,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:16:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:16:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:16:08,621 INFO L87 Difference]: Start difference. First operand 77 states and 100 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) [2024-11-08 15:16:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:08,644 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2024-11-08 15:16:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:16:08,650 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 [2024-11-08 15:16:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:08,651 INFO L225 Difference]: With dead ends: 120 [2024-11-08 15:16:08,651 INFO L226 Difference]: Without dead ends: 68 [2024-11-08 15:16:08,652 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 [2024-11-08 15:16:08,653 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 12 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 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 [2024-11-08 15:16:08,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-08 15:16:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-08 15:16:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 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) [2024-11-08 15:16:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2024-11-08 15:16:08,669 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2024-11-08 15:16:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:08,670 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2024-11-08 15:16:08,670 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) [2024-11-08 15:16:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2024-11-08 15:16:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 15:16:08,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:08,672 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] [2024-11-08 15:16:08,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:16:08,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:08,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 764053852, now seen corresponding path program 1 times [2024-11-08 15:16:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:08,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153072165] [2024-11-08 15:16:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:08,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:08,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153072165] [2024-11-08 15:16:08,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153072165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:08,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:16:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285237401] [2024-11-08 15:16:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:08,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:16:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:08,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:16:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:16:08,956 INFO L87 Difference]: Start difference. First operand 68 states and 88 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) [2024-11-08 15:16:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:09,108 INFO L93 Difference]: Finished difference Result 129 states and 170 transitions. [2024-11-08 15:16:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:16:09,109 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 [2024-11-08 15:16:09,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:09,110 INFO L225 Difference]: With dead ends: 129 [2024-11-08 15:16:09,110 INFO L226 Difference]: Without dead ends: 68 [2024-11-08 15:16:09,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:16:09,111 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:09,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 220 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-08 15:16:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-08 15:16:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 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) [2024-11-08 15:16:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2024-11-08 15:16:09,118 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 24 [2024-11-08 15:16:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:09,118 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2024-11-08 15:16:09,119 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) [2024-11-08 15:16:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-11-08 15:16:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 15:16:09,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:09,120 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] [2024-11-08 15:16:09,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:16:09,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:09,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:09,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1882395024, now seen corresponding path program 1 times [2024-11-08 15:16:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:09,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709160838] [2024-11-08 15:16:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:09,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709160838] [2024-11-08 15:16:09,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709160838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:09,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:09,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:16:09,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457544944] [2024-11-08 15:16:09,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:09,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:16:09,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:09,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:16:09,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:16:09,197 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-08 15:16:09,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:09,250 INFO L93 Difference]: Finished difference Result 168 states and 221 transitions. [2024-11-08 15:16:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:16:09,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 32 [2024-11-08 15:16:09,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:09,253 INFO L225 Difference]: With dead ends: 168 [2024-11-08 15:16:09,253 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 15:16:09,254 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 [2024-11-08 15:16:09,255 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:09,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 139 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:09,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 15:16:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-08 15:16:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 92 states have internal predecessors, (110), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-08 15:16:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-08 15:16:09,281 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 32 [2024-11-08 15:16:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:09,282 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-08 15:16:09,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-08 15:16:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2024-11-08 15:16:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 15:16:09,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:09,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:09,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:16:09,284 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:09,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1383918710, now seen corresponding path program 1 times [2024-11-08 15:16:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:09,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675555311] [2024-11-08 15:16:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:16:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:09,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:09,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675555311] [2024-11-08 15:16:09,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675555311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:09,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:09,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:16:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332966238] [2024-11-08 15:16:09,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:09,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:16:09,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:09,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:16:09,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:16:09,413 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:16:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:09,656 INFO L93 Difference]: Finished difference Result 298 states and 395 transitions. [2024-11-08 15:16:09,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:16:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-08 15:16:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:09,659 INFO L225 Difference]: With dead ends: 298 [2024-11-08 15:16:09,659 INFO L226 Difference]: Without dead ends: 200 [2024-11-08 15:16:09,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:16:09,661 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 122 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:09,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 274 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:16:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-08 15:16:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2024-11-08 15:16:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 170 states have internal predecessors, (203), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (32), 18 states have call predecessors, (32), 18 states have call successors, (32) [2024-11-08 15:16:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 253 transitions. [2024-11-08 15:16:09,690 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 253 transitions. Word has length 40 [2024-11-08 15:16:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:09,691 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 253 transitions. [2024-11-08 15:16:09,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:16:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 253 transitions. [2024-11-08 15:16:09,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 15:16:09,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:09,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:09,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:16:09,695 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:09,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:09,696 INFO L85 PathProgramCache]: Analyzing trace with hash 325624560, now seen corresponding path program 1 times [2024-11-08 15:16:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:09,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643059127] [2024-11-08 15:16:09,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:09,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:16:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:16:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:09,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643059127] [2024-11-08 15:16:09,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643059127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:16:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144805743] [2024-11-08 15:16:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:09,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:16:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:16:09,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:09,806 INFO L87 Difference]: Start difference. First operand 198 states and 253 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:16:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:10,103 INFO L93 Difference]: Finished difference Result 257 states and 324 transitions. [2024-11-08 15:16:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 15:16:10,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-11-08 15:16:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:10,107 INFO L225 Difference]: With dead ends: 257 [2024-11-08 15:16:10,107 INFO L226 Difference]: Without dead ends: 255 [2024-11-08 15:16:10,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:16:10,108 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 195 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:10,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 314 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:16:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-08 15:16:10,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 231. [2024-11-08 15:16:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2580645161290323) internal successors, (234), 202 states have internal predecessors, (234), 20 states have call successors, (20), 18 states have call predecessors, (20), 24 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-11-08 15:16:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 293 transitions. [2024-11-08 15:16:10,145 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 293 transitions. Word has length 44 [2024-11-08 15:16:10,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:10,146 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 293 transitions. [2024-11-08 15:16:10,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:16:10,147 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 293 transitions. [2024-11-08 15:16:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 15:16:10,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:10,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:10,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:16:10,149 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:10,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1024939841, now seen corresponding path program 1 times [2024-11-08 15:16:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:10,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474964161] [2024-11-08 15:16:10,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:10,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:16:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:10,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:10,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474964161] [2024-11-08 15:16:10,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474964161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:10,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:10,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:16:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338192599] [2024-11-08 15:16:10,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:10,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:16:10,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:10,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:16:10,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:10,240 INFO L87 Difference]: Start difference. First operand 231 states and 293 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:10,436 INFO L93 Difference]: Finished difference Result 485 states and 635 transitions. [2024-11-08 15:16:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:16:10,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-08 15:16:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:10,439 INFO L225 Difference]: With dead ends: 485 [2024-11-08 15:16:10,442 INFO L226 Difference]: Without dead ends: 261 [2024-11-08 15:16:10,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:16:10,444 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 128 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:10,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 315 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-08 15:16:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 237. [2024-11-08 15:16:10,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 192 states have (on average 1.25) internal successors, (240), 208 states have internal predecessors, (240), 20 states have call successors, (20), 18 states have call predecessors, (20), 24 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-11-08 15:16:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 299 transitions. [2024-11-08 15:16:10,466 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 299 transitions. Word has length 46 [2024-11-08 15:16:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:10,466 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 299 transitions. [2024-11-08 15:16:10,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 299 transitions. [2024-11-08 15:16:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 15:16:10,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:10,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:10,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:16:10,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:10,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:10,469 INFO L85 PathProgramCache]: Analyzing trace with hash -969204865, now seen corresponding path program 1 times [2024-11-08 15:16:10,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:10,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647314297] [2024-11-08 15:16:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:16:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:10,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:10,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647314297] [2024-11-08 15:16:10,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647314297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:10,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:10,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:16:10,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146423694] [2024-11-08 15:16:10,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:10,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:16:10,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:10,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:16:10,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:16:10,592 INFO L87 Difference]: Start difference. First operand 237 states and 299 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:10,862 INFO L93 Difference]: Finished difference Result 457 states and 587 transitions. [2024-11-08 15:16:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:16:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-08 15:16:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:10,864 INFO L225 Difference]: With dead ends: 457 [2024-11-08 15:16:10,864 INFO L226 Difference]: Without dead ends: 227 [2024-11-08 15:16:10,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:16:10,870 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 128 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:10,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 348 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:16:10,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-08 15:16:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 182. [2024-11-08 15:16:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 158 states have internal predecessors, (182), 17 states have call successors, (17), 15 states have call predecessors, (17), 18 states have return successors, (28), 16 states have call predecessors, (28), 17 states have call successors, (28) [2024-11-08 15:16:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 227 transitions. [2024-11-08 15:16:10,887 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 227 transitions. Word has length 46 [2024-11-08 15:16:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:10,889 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 227 transitions. [2024-11-08 15:16:10,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 227 transitions. [2024-11-08 15:16:10,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 15:16:10,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:10,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:10,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:16:10,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:10,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:10,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1786853315, now seen corresponding path program 1 times [2024-11-08 15:16:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116230510] [2024-11-08 15:16:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:10,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:16:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:11,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:11,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116230510] [2024-11-08 15:16:11,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116230510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:11,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:11,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:16:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865670329] [2024-11-08 15:16:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:11,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:16:11,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:16:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:11,021 INFO L87 Difference]: Start difference. First operand 182 states and 227 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:11,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:11,310 INFO L93 Difference]: Finished difference Result 417 states and 553 transitions. [2024-11-08 15:16:11,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 15:16:11,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-08 15:16:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:11,313 INFO L225 Difference]: With dead ends: 417 [2024-11-08 15:16:11,313 INFO L226 Difference]: Without dead ends: 282 [2024-11-08 15:16:11,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:16:11,315 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 183 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:11,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 405 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:16:11,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-08 15:16:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 271. [2024-11-08 15:16:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 217 states have (on average 1.2211981566820276) internal successors, (265), 232 states have internal predecessors, (265), 25 states have call successors, (25), 23 states have call predecessors, (25), 28 states have return successors, (54), 27 states have call predecessors, (54), 25 states have call successors, (54) [2024-11-08 15:16:11,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 344 transitions. [2024-11-08 15:16:11,347 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 344 transitions. Word has length 46 [2024-11-08 15:16:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:11,347 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 344 transitions. [2024-11-08 15:16:11,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 344 transitions. [2024-11-08 15:16:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 15:16:11,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:11,351 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-08 15:16:11,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:16:11,351 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:11,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1370841909, now seen corresponding path program 1 times [2024-11-08 15:16:11,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:11,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094241676] [2024-11-08 15:16:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:11,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:16:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:16:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:16:11,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094241676] [2024-11-08 15:16:11,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094241676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:16:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245771340] [2024-11-08 15:16:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:11,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:16:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:11,496 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) [2024-11-08 15:16:11,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:16:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:11,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:16:11,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:16:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:11,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:16:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:16:11,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245771340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:16:11,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:16:11,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2024-11-08 15:16:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904951312] [2024-11-08 15:16:11,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:16:11,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:16:11,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:16:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:16:11,928 INFO L87 Difference]: Start difference. First operand 271 states and 344 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:16:12,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:12,571 INFO L93 Difference]: Finished difference Result 636 states and 856 transitions. [2024-11-08 15:16:12,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 15:16:12,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2024-11-08 15:16:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:12,574 INFO L225 Difference]: With dead ends: 636 [2024-11-08 15:16:12,574 INFO L226 Difference]: Without dead ends: 412 [2024-11-08 15:16:12,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-11-08 15:16:12,576 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 216 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:12,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 510 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:16:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-08 15:16:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 365. [2024-11-08 15:16:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 289 states have (on average 1.2283737024221453) internal successors, (355), 310 states have internal predecessors, (355), 36 states have call successors, (36), 33 states have call predecessors, (36), 39 states have return successors, (82), 36 states have call predecessors, (82), 36 states have call successors, (82) [2024-11-08 15:16:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 473 transitions. [2024-11-08 15:16:12,595 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 473 transitions. Word has length 80 [2024-11-08 15:16:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:12,595 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 473 transitions. [2024-11-08 15:16:12,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:16:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 473 transitions. [2024-11-08 15:16:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:16:12,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:12,597 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:12,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:16:12,801 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,SelfDestructingSolverStorable9 [2024-11-08 15:16:12,802 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:12,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:12,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2051063763, now seen corresponding path program 2 times [2024-11-08 15:16:12,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417476061] [2024-11-08 15:16:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:12,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:12,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:12,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:12,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:16:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:12,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 15:16:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:16:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:16:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 15:16:13,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417476061] [2024-11-08 15:16:13,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417476061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:16:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722699432] [2024-11-08 15:16:13,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 15:16:13,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:16:13,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:13,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:16:13,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:16:13,165 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 15:16:13,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 15:16:13,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 15:16:13,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:16:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 15:16:13,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:16:13,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722699432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:13,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:16:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-08 15:16:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534136978] [2024-11-08 15:16:13,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:13,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:16:13,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:16:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:16:13,326 INFO L87 Difference]: Start difference. First operand 365 states and 473 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:16:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:13,591 INFO L93 Difference]: Finished difference Result 956 states and 1300 transitions. [2024-11-08 15:16:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:16:13,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 114 [2024-11-08 15:16:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:13,595 INFO L225 Difference]: With dead ends: 956 [2024-11-08 15:16:13,595 INFO L226 Difference]: Without dead ends: 637 [2024-11-08 15:16:13,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:16:13,597 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 130 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:13,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 465 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-08 15:16:13,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 616. [2024-11-08 15:16:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 489 states have (on average 1.2229038854805725) internal successors, (598), 518 states have internal predecessors, (598), 61 states have call successors, (61), 58 states have call predecessors, (61), 65 states have return successors, (125), 61 states have call predecessors, (125), 61 states have call successors, (125) [2024-11-08 15:16:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 784 transitions. [2024-11-08 15:16:13,637 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 784 transitions. Word has length 114 [2024-11-08 15:16:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:13,638 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 784 transitions. [2024-11-08 15:16:13,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:16:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 784 transitions. [2024-11-08 15:16:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:16:13,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:13,640 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:13,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:16:13,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 15:16:13,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:13,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:13,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1607163089, now seen corresponding path program 1 times [2024-11-08 15:16:13,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:13,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508389151] [2024-11-08 15:16:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:13,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:16:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:16:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:13,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 15:16:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:14,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:16:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:14,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:16:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:14,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:16:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508389151] [2024-11-08 15:16:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508389151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 15:16:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110167293] [2024-11-08 15:16:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:14,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:16:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:16:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:16:14,016 INFO L87 Difference]: Start difference. First operand 616 states and 784 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:16:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:14,242 INFO L93 Difference]: Finished difference Result 857 states and 1073 transitions. [2024-11-08 15:16:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:16:14,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 114 [2024-11-08 15:16:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:14,243 INFO L225 Difference]: With dead ends: 857 [2024-11-08 15:16:14,243 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:16:14,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:16:14,246 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 94 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:14,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 297 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:16:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:16:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:16:14,246 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) [2024-11-08 15:16:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:16:14,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2024-11-08 15:16:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:14,247 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:16:14,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:16:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:16:14,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:16:14,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:16:14,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:16:14,252 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:14,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:16:15,102 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:16:15,119 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 15:16:15,122 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 15:16:15,124 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 15:16:15,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:16:15 BoogieIcfgContainer [2024-11-08 15:16:15,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:16:15,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:16:15,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:16:15,127 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:16:15,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:07" (3/4) ... [2024-11-08 15:16:15,129 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:16:15,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:16:15,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:16:15,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:16:15,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:16:15,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:15,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:16:15,137 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 15:16:15,137 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:16:15,138 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:16:15,138 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:16:15,138 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:16:15,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:16:15,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:16:15,265 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:16:15,266 INFO L158 Benchmark]: Toolchain (without parser) took 8337.91ms. Allocated memory was 180.4MB in the beginning and 327.2MB in the end (delta: 146.8MB). Free memory was 110.8MB in the beginning and 293.1MB in the end (delta: -182.3MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,266 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 109.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:16:15,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.68ms. Allocated memory is still 180.4MB. Free memory was 110.8MB in the beginning and 148.0MB in the end (delta: -37.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.90ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 145.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,267 INFO L158 Benchmark]: Boogie Preprocessor took 44.87ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,267 INFO L158 Benchmark]: RCFGBuilder took 364.22ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 124.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,267 INFO L158 Benchmark]: TraceAbstraction took 7211.57ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 123.6MB in the beginning and 88.1MB in the end (delta: 35.4MB). Peak memory consumption was 130.9MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,267 INFO L158 Benchmark]: Witness Printer took 138.88ms. Allocated memory was 272.6MB in the beginning and 327.2MB in the end (delta: 54.5MB). Free memory was 88.1MB in the beginning and 293.1MB in the end (delta: -205.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 15:16:15,269 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 109.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.68ms. Allocated memory is still 180.4MB. Free memory was 110.8MB in the beginning and 148.0MB in the end (delta: -37.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.90ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 145.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.87ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.22ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 124.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7211.57ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 123.6MB in the beginning and 88.1MB in the end (delta: 35.4MB). Peak memory consumption was 130.9MB. Max. memory is 16.1GB. * Witness Printer took 138.88ms. Allocated memory was 272.6MB in the beginning and 327.2MB in the end (delta: 54.5MB). Free memory was 88.1MB in the beginning and 293.1MB in the end (delta: -205.0MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [343] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 474]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [474] - GenericResultAtLocation [Line: 512]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [512] - GenericResultAtLocation [Line: 608]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [608] - GenericResultAtLocation [Line: 974]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [974] * 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: 979]: 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, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1374 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1359 mSDsluCounter, 3554 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2609 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2030 IncrementalHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 945 mSDtfsCounter, 2030 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 352 SyntacticMatches, 10 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=11, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 176 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 884 ConstructedInterpolants, 0 QuantifiedInterpolants, 1622 SizeOfPredicates, 3 NumberOfNonLiveVariables, 641 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 252/282 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: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - ProcedureContractResult [Line: 156]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 398]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 514]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 132]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: ((((((1 == systemActive) && (\old(pumpRunning) == 0)) || ((1 == systemActive) && (2 <= \old(waterLevel)))) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 164]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: (((((1 == systemActive) && (\old(pumpRunning) == 0)) && ((waterLevel != 1) || (pumpRunning == 0))) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 386]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: ((((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && (1 == systemActive)) && ((1 < \old(waterLevel)) || ((pumpRunning == 0) && (\old(waterLevel) == 1)))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:16:15,307 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