./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product38.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_spec5_product38.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 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:16:45,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:16:45,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:16:45,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:16:45,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:16:45,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:16:45,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:16:45,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:16:45,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:16:45,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:16:45,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:16:45,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:16:45,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:16:45,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:16:45,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:16:45,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:16:45,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:16:45,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:16:45,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:16:45,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:16:45,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:16:45,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:16:45,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:16:45,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:16:45,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:16:45,286 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:16:45,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:16:45,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:16:45,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:16:45,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:16:45,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:16:45,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:16:45,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:16:45,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:16:45,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:16:45,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:16:45,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:16:45,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:16:45,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:16:45,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:16:45,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:16:45,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:16:45,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 [2024-11-08 15:16:45,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:16:45,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:16:45,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:16:45,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:16:45,538 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:16:45,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2024-11-08 15:16:46,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:16:47,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:16:47,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2024-11-08 15:16:47,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fa5a497/50e65c3dcca24582a5f9f1d474761de8/FLAG6b9c6b333 [2024-11-08 15:16:47,390 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fa5a497/50e65c3dcca24582a5f9f1d474761de8 [2024-11-08 15:16:47,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:16:47,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:16:47,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:16:47,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:16:47,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:16:47,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2e771d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47, skipping insertion in model container [2024-11-08 15:16:47,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:16:47,596 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_spec5_product38.cil.c[1605,1618] [2024-11-08 15:16:47,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:16:47,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:16:47,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-08 15:16:47,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] [2024-11-08 15:16:47,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [164] [2024-11-08 15:16:47,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [215] [2024-11-08 15:16:47,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [581] [2024-11-08 15:16:47,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [679] [2024-11-08 15:16:47,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [871] [2024-11-08 15:16:47,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [906] [2024-11-08 15:16:47,756 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_spec5_product38.cil.c[1605,1618] [2024-11-08 15:16:47,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:16:47,822 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:16:47,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47 WrapperNode [2024-11-08 15:16:47,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:16:47,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:16:47,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:16:47,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:16:47,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,861 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 206 [2024-11-08 15:16:47,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:16:47,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:16:47,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:16:47,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:16:47,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,889 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 15:16:47,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:16:47,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:16:47,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:16:47,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:16:47,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (1/1) ... [2024-11-08 15:16:47,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:16:47,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:47,941 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 15:16:47,943 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 15:16:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:16:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:16:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:16:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:16:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:16:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:16:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:16:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:16:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:16:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-08 15:16:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-08 15:16:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:16:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:16:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:16:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:16:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:16:48,041 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:16:48,043 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:16:48,322 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-08 15:16:48,322 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:16:48,339 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:16:48,357 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:16:48,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:48 BoogieIcfgContainer [2024-11-08 15:16:48,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:16:48,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:16:48,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:16:48,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:16:48,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:16:47" (1/3) ... [2024-11-08 15:16:48,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a29b641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:16:48, skipping insertion in model container [2024-11-08 15:16:48,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:16:47" (2/3) ... [2024-11-08 15:16:48,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a29b641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:16:48, skipping insertion in model container [2024-11-08 15:16:48,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:48" (3/3) ... [2024-11-08 15:16:48,373 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2024-11-08 15:16:48,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:16:48,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:16:48,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:16:48,449 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;@394cfe3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:16:48,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:16:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 15:16:48,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 15:16:48,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:48,468 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:48,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:48,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:48,475 INFO L85 PathProgramCache]: Analyzing trace with hash 849031785, now seen corresponding path program 1 times [2024-11-08 15:16:48,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061958917] [2024-11-08 15:16:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 15:16:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:16:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:48,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:48,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061958917] [2024-11-08 15:16:48,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061958917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:48,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:48,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:16:48,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981990535] [2024-11-08 15:16:48,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:48,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:16:48,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:16:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:16:48,717 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:48,746 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions. [2024-11-08 15:16:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:16:48,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-08 15:16:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:48,761 INFO L225 Difference]: With dead ends: 173 [2024-11-08 15:16:48,761 INFO L226 Difference]: Without dead ends: 82 [2024-11-08 15:16:48,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 15:16:48,767 INFO L432 NwaCegarLoop]: 114 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, 114 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 15:16:48,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-08 15:16:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-08 15:16:48,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 70 states have internal predecessors, (82), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 15:16:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2024-11-08 15:16:48,812 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 32 [2024-11-08 15:16:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:48,813 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2024-11-08 15:16:48,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2024-11-08 15:16:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 15:16:48,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:48,817 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:48,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:16:48,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:48,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:48,825 INFO L85 PathProgramCache]: Analyzing trace with hash 79054015, now seen corresponding path program 1 times [2024-11-08 15:16:48,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:48,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126832726] [2024-11-08 15:16:48,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:48,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 15:16:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:16:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:48,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:48,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126832726] [2024-11-08 15:16:48,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126832726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:48,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:48,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:16:48,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23656936] [2024-11-08 15:16:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:48,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:16:48,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:48,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:16:48,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:16:48,949 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:48,967 INFO L93 Difference]: Finished difference Result 128 states and 164 transitions. [2024-11-08 15:16:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:16:48,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-08 15:16:48,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:48,972 INFO L225 Difference]: With dead ends: 128 [2024-11-08 15:16:48,972 INFO L226 Difference]: Without dead ends: 73 [2024-11-08 15:16:48,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 15:16:48,973 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 13 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 167 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 15:16:48,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:48,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-08 15:16:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-08 15:16:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 15:16:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-11-08 15:16:48,986 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 33 [2024-11-08 15:16:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:48,986 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-08 15:16:48,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:16:48,987 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2024-11-08 15:16:48,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 15:16:48,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:48,988 INFO L215 NwaCegarLoop]: trace histogram [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 15:16:48,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:16:48,989 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:48,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:48,989 INFO L85 PathProgramCache]: Analyzing trace with hash 321911882, now seen corresponding path program 1 times [2024-11-08 15:16:48,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:48,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854070130] [2024-11-08 15:16:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:48,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:16:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:49,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:49,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854070130] [2024-11-08 15:16:49,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854070130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:49,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:49,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:16:49,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791041817] [2024-11-08 15:16:49,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:49,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:16:49,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:49,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:16:49,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:16:49,131 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 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 15:16:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:49,180 INFO L93 Difference]: Finished difference Result 138 states and 179 transitions. [2024-11-08 15:16:49,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:16:49,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 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 38 [2024-11-08 15:16:49,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:49,182 INFO L225 Difference]: With dead ends: 138 [2024-11-08 15:16:49,182 INFO L226 Difference]: Without dead ends: 73 [2024-11-08 15:16:49,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:49,183 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 83 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:49,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:49,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-08 15:16:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-08 15:16:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 64 states have internal predecessors, (74), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 15:16:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-11-08 15:16:49,191 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 38 [2024-11-08 15:16:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:49,192 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-11-08 15:16:49,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 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 15:16:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-11-08 15:16:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 15:16:49,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:49,194 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:49,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:16:49,195 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:49,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1433797075, now seen corresponding path program 1 times [2024-11-08 15:16:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203901726] [2024-11-08 15:16:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:49,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:16:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:49,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:49,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203901726] [2024-11-08 15:16:49,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203901726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:49,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:49,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:16:49,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339226892] [2024-11-08 15:16:49,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:49,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:16:49,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:49,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:16:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:16:49,245 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:16:49,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:49,272 INFO L93 Difference]: Finished difference Result 186 states and 241 transitions. [2024-11-08 15:16:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:16:49,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-08 15:16:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:49,274 INFO L225 Difference]: With dead ends: 186 [2024-11-08 15:16:49,274 INFO L226 Difference]: Without dead ends: 121 [2024-11-08 15:16:49,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 15:16:49,275 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 75 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 170 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 15:16:49,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 170 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:16:49,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-08 15:16:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-08 15:16:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.2826086956521738) internal successors, (118), 99 states have internal predecessors, (118), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-08 15:16:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2024-11-08 15:16:49,291 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 44 [2024-11-08 15:16:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:49,292 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2024-11-08 15:16:49,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:16:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2024-11-08 15:16:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 15:16:49,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:49,293 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:49,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:16:49,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:49,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash -464428248, now seen corresponding path program 1 times [2024-11-08 15:16:49,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:49,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335418412] [2024-11-08 15:16:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:16:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:16:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:49,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:49,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335418412] [2024-11-08 15:16:49,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335418412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:49,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:49,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:16:49,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469608024] [2024-11-08 15:16:49,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:49,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:16:49,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:49,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:16:49,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:16:49,438 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 15:16:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:49,575 INFO L93 Difference]: Finished difference Result 259 states and 333 transitions. [2024-11-08 15:16:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:16:49,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 52 [2024-11-08 15:16:49,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:49,577 INFO L225 Difference]: With dead ends: 259 [2024-11-08 15:16:49,577 INFO L226 Difference]: Without dead ends: 148 [2024-11-08 15:16:49,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:16:49,579 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 51 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:49,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 369 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:49,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-08 15:16:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-08 15:16:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.280701754385965) internal successors, (146), 121 states have internal predecessors, (146), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-08 15:16:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2024-11-08 15:16:49,596 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 52 [2024-11-08 15:16:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:49,596 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2024-11-08 15:16:49,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 15:16:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2024-11-08 15:16:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 15:16:49,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:49,598 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:49,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:16:49,598 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:49,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:49,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2141595306, now seen corresponding path program 1 times [2024-11-08 15:16:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:49,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222766319] [2024-11-08 15:16:49,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:49,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:16:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:16:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:49,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222766319] [2024-11-08 15:16:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222766319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:49,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:49,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:16:49,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617391126] [2024-11-08 15:16:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:49,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:16:49,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:16:49,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:16:49,692 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 15:16:49,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:49,790 INFO L93 Difference]: Finished difference Result 288 states and 374 transitions. [2024-11-08 15:16:49,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:16:49,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 52 [2024-11-08 15:16:49,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:49,791 INFO L225 Difference]: With dead ends: 288 [2024-11-08 15:16:49,791 INFO L226 Difference]: Without dead ends: 150 [2024-11-08 15:16:49,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:49,793 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 50 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:49,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 289 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-08 15:16:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-08 15:16:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 123 states have internal predecessors, (148), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-08 15:16:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 187 transitions. [2024-11-08 15:16:49,825 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 187 transitions. Word has length 52 [2024-11-08 15:16:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:49,825 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 187 transitions. [2024-11-08 15:16:49,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 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 15:16:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 187 transitions. [2024-11-08 15:16:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 15:16:49,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:49,828 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:49,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:16:49,829 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:49,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:49,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1730670164, now seen corresponding path program 1 times [2024-11-08 15:16:49,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:49,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558429344] [2024-11-08 15:16:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:16:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:16:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:49,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558429344] [2024-11-08 15:16:49,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558429344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:49,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:49,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:16:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900152096] [2024-11-08 15:16:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:49,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:16:49,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:49,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:16:49,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:16:49,966 INFO L87 Difference]: Start difference. First operand 148 states and 187 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 15:16:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:50,159 INFO L93 Difference]: Finished difference Result 428 states and 559 transitions. [2024-11-08 15:16:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:16:50,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 52 [2024-11-08 15:16:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:50,162 INFO L225 Difference]: With dead ends: 428 [2024-11-08 15:16:50,162 INFO L226 Difference]: Without dead ends: 288 [2024-11-08 15:16:50,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:50,164 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 211 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:50,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 296 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-08 15:16:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 280. [2024-11-08 15:16:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 216 states have (on average 1.25) internal successors, (270), 227 states have internal predecessors, (270), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2024-11-08 15:16:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 357 transitions. [2024-11-08 15:16:50,192 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 357 transitions. Word has length 52 [2024-11-08 15:16:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:50,193 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 357 transitions. [2024-11-08 15:16:50,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 15:16:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 357 transitions. [2024-11-08 15:16:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 15:16:50,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:50,196 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:16:50,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:16:50,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:50,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:50,197 INFO L85 PathProgramCache]: Analyzing trace with hash 742025993, now seen corresponding path program 1 times [2024-11-08 15:16:50,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:50,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578632505] [2024-11-08 15:16:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:50,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:16:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:16:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:16:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 15:16:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:16:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578632505] [2024-11-08 15:16:50,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578632505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:50,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:50,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:16:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903726857] [2024-11-08 15:16:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:50,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:16:50,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:16:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:16:50,308 INFO L87 Difference]: Start difference. First operand 280 states and 357 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 15:16:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:50,508 INFO L93 Difference]: Finished difference Result 550 states and 709 transitions. [2024-11-08 15:16:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:16:50,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2024-11-08 15:16:50,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:50,511 INFO L225 Difference]: With dead ends: 550 [2024-11-08 15:16:50,511 INFO L226 Difference]: Without dead ends: 278 [2024-11-08 15:16:50,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:16:50,512 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 126 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:50,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 372 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:16:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-08 15:16:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2024-11-08 15:16:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 212 states have (on average 1.2169811320754718) internal successors, (258), 223 states have internal predecessors, (258), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2024-11-08 15:16:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 345 transitions. [2024-11-08 15:16:50,540 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 345 transitions. Word has length 54 [2024-11-08 15:16:50,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:50,540 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 345 transitions. [2024-11-08 15:16:50,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 15:16:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 345 transitions. [2024-11-08 15:16:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:16:50,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:50,541 INFO L215 NwaCegarLoop]: trace histogram [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 15:16:50,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:16:50,542 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:50,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -731489466, now seen corresponding path program 1 times [2024-11-08 15:16:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:50,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425413353] [2024-11-08 15:16:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:16:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:16:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:16:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:16:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:16:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:50,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425413353] [2024-11-08 15:16:50,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425413353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:16:50,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:16:50,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:16:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634459527] [2024-11-08 15:16:50,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:16:50,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:16:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:50,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:16:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:16:50,724 INFO L87 Difference]: Start difference. First operand 276 states and 345 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:16:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:51,139 INFO L93 Difference]: Finished difference Result 828 states and 1079 transitions. [2024-11-08 15:16:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 15:16:51,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-08 15:16:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:51,143 INFO L225 Difference]: With dead ends: 828 [2024-11-08 15:16:51,144 INFO L226 Difference]: Without dead ends: 611 [2024-11-08 15:16:51,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-08 15:16:51,146 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 391 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:51,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 525 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:16:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-08 15:16:51,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 533. [2024-11-08 15:16:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 410 states have (on average 1.2146341463414634) internal successors, (498), 434 states have internal predecessors, (498), 65 states have call successors, (65), 49 states have call predecessors, (65), 57 states have return successors, (104), 67 states have call predecessors, (104), 65 states have call successors, (104) [2024-11-08 15:16:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 667 transitions. [2024-11-08 15:16:51,180 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 667 transitions. Word has length 56 [2024-11-08 15:16:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:51,180 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 667 transitions. [2024-11-08 15:16:51,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:16:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 667 transitions. [2024-11-08 15:16:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 15:16:51,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:51,182 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:51,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:16:51,182 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:51,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:51,182 INFO L85 PathProgramCache]: Analyzing trace with hash -981985599, now seen corresponding path program 1 times [2024-11-08 15:16:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:51,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419470335] [2024-11-08 15:16:51,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:51,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:16:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:16:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:16:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:16:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:16:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:16:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:16:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:16:51,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:51,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419470335] [2024-11-08 15:16:51,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419470335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:16:51,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396875746] [2024-11-08 15:16:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:51,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:16:51,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:51,389 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 15:16:51,393 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 15:16:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:51,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:16:51,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:16:51,670 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:16:51,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:16:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:16:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396875746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:16:51,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:16:51,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 16 [2024-11-08 15:16:51,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946017900] [2024-11-08 15:16:51,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:16:51,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 15:16:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 15:16:51,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:16:51,865 INFO L87 Difference]: Start difference. First operand 533 states and 667 transitions. Second operand has 16 states, 16 states have (on average 7.4375) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:16:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:52,687 INFO L93 Difference]: Finished difference Result 1150 states and 1477 transitions. [2024-11-08 15:16:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 15:16:52,688 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.4375) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 96 [2024-11-08 15:16:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:52,691 INFO L225 Difference]: With dead ends: 1150 [2024-11-08 15:16:52,691 INFO L226 Difference]: Without dead ends: 674 [2024-11-08 15:16:52,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1389, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 15:16:52,694 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 376 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:52,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1431 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:16:52,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-08 15:16:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 598. [2024-11-08 15:16:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 454 states have (on average 1.2026431718061674) internal successors, (546), 486 states have internal predecessors, (546), 75 states have call successors, (75), 63 states have call predecessors, (75), 68 states have return successors, (100), 70 states have call predecessors, (100), 75 states have call successors, (100) [2024-11-08 15:16:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 721 transitions. [2024-11-08 15:16:52,753 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 721 transitions. Word has length 96 [2024-11-08 15:16:52,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:52,754 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 721 transitions. [2024-11-08 15:16:52,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.4375) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:16:52,758 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 721 transitions. [2024-11-08 15:16:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-08 15:16:52,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:16:52,761 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 15:16:52,785 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 15:16:52,961 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 15:16:52,962 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:16:52,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:16:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1684606529, now seen corresponding path program 1 times [2024-11-08 15:16:52,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:16:52,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355271016] [2024-11-08 15:16:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:52,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:16:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:16:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:16:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:16:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:16:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:16:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:16:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 15:16:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:16:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:16:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:16:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:16:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 15:16:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 15:16:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 69 proven. 5 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-08 15:16:53,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:16:53,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355271016] [2024-11-08 15:16:53,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355271016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:16:53,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264057349] [2024-11-08 15:16:53,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:16:53,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:16:53,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:16:53,211 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 15:16:53,212 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 15:16:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:16:53,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 15:16:53,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:16:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 138 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-08 15:16:53,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:16:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 81 proven. 39 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 15:16:53,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264057349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:16:53,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:16:53,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-08 15:16:53,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496537836] [2024-11-08 15:16:53,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:16:53,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 15:16:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:16:53,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 15:16:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-11-08 15:16:53,851 INFO L87 Difference]: Start difference. First operand 598 states and 721 transitions. Second operand has 25 states, 25 states have (on average 8.16) internal successors, (204), 21 states have internal predecessors, (204), 9 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) [2024-11-08 15:16:54,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:16:54,692 INFO L93 Difference]: Finished difference Result 1242 states and 1546 transitions. [2024-11-08 15:16:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 15:16:54,693 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.16) internal successors, (204), 21 states have internal predecessors, (204), 9 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) Word has length 168 [2024-11-08 15:16:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:16:54,695 INFO L225 Difference]: With dead ends: 1242 [2024-11-08 15:16:54,695 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:16:54,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 350 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1790, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 15:16:54,698 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 516 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:16:54,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 952 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:16:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:16:54,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:16:54,699 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 15:16:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:16:54,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2024-11-08 15:16:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:16:54,700 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:16:54,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.16) internal successors, (204), 21 states have internal predecessors, (204), 9 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) [2024-11-08 15:16:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:16:54,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:16:54,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:16:54,716 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 15:16:54,906 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 15:16:54,909 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:16:54,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:16:57,839 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:16:57,866 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse2 (<= |old(~waterLevel~0)| 2)) (.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (= |old(~pumpRunning~0)| 0) .cse2 .cse1) (and (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2 .cse1))) [2024-11-08 15:16:57,882 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|) .cse1) (and (= 2 ~waterLevel~0) .cse2 .cse1) (and .cse0 .cse2 .cse1)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse1) (and (<= 1 ~pumpRunning~0) .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-11-08 15:16:57,891 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse1 (<= |old(~waterLevel~0)| 1)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse4 (= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse2) (and .cse0 .cse2 .cse4) (and .cse3 .cse2 .cse4))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse4 (<= ~waterLevel~0 1)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse0 .cse4 (<= 1 ~switchedOnBeforeTS~0) .cse2))) [2024-11-08 15:16:57,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:16:57 BoogieIcfgContainer [2024-11-08 15:16:57,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:16:57,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:16:57,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:16:57,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:16:57,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:16:48" (3/4) ... [2024-11-08 15:16:57,902 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:16:57,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-08 15:16:57,910 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 15:16:57,911 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:16:57,911 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:16:57,911 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:16:57,911 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:16:58,007 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:16:58,007 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:16:58,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:16:58,008 INFO L158 Benchmark]: Toolchain (without parser) took 10615.03ms. Allocated memory was 176.2MB in the beginning and 285.2MB in the end (delta: 109.1MB). Free memory was 116.0MB in the beginning and 137.6MB in the end (delta: -21.6MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,008 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:16:58,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.83ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 94.4MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.35ms. Allocated memory is still 176.2MB. Free memory was 94.4MB in the beginning and 91.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,009 INFO L158 Benchmark]: Boogie Preprocessor took 45.91ms. Allocated memory is still 176.2MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,009 INFO L158 Benchmark]: RCFGBuilder took 448.00ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 89.7MB in the beginning and 204.6MB in the end (delta: -114.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,010 INFO L158 Benchmark]: TraceAbstraction took 9538.97ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 204.6MB in the beginning and 146.0MB in the end (delta: 58.6MB). Peak memory consumption was 170.2MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,010 INFO L158 Benchmark]: Witness Printer took 108.76ms. Allocated memory is still 285.2MB. Free memory was 146.0MB in the beginning and 137.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:16:58,011 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 176.2MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.83ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 94.4MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.35ms. Allocated memory is still 176.2MB. Free memory was 94.4MB in the beginning and 91.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.91ms. Allocated memory is still 176.2MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.00ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 89.7MB in the beginning and 204.6MB in the end (delta: -114.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9538.97ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 204.6MB in the beginning and 146.0MB in the end (delta: 58.6MB). Peak memory consumption was 170.2MB. Max. memory is 16.1GB. * Witness Printer took 108.76ms. Allocated memory is still 285.2MB. Free memory was 146.0MB in the beginning and 137.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [164] - GenericResultAtLocation [Line: 215]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [215] - GenericResultAtLocation [Line: 581]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [581] - GenericResultAtLocation [Line: 679]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [679] - GenericResultAtLocation [Line: 871]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [871] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [906] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1931 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1892 mSDsluCounter, 4950 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3801 mSDsCounter, 530 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3061 IncrementalHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 530 mSolverCounterUnsat, 1149 mSDtfsCounter, 3061 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 780 GetRequests, 633 SyntacticMatches, 7 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 907 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=598occurred in iteration=10, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 170 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 941 NumberOfCodeBlocks, 941 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1190 ConstructedInterpolants, 0 QuantifiedInterpolants, 2337 SizeOfPredicates, 2 NumberOfNonLiveVariables, 819 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 625/699 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: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 916]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) - ProcedureContractResult [Line: 713]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 612]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 686]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((((((1 <= \old(pumpRunning)) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((\old(pumpRunning) == 0) && (0 != systemActive))) || ((((1 <= \old(switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))) && (0 != systemActive))) && ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel))) || (\old(pumpRunning) != 0)) || (((pumpRunning == 0) && (2 == waterLevel)) && (\old(waterLevel) == 2)))) && (((((((pumpRunning == \old(pumpRunning)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == \old(pumpRunning)) && (((long long) waterLevel + 1) <= \old(waterLevel))) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (((long long) waterLevel + 1) <= \old(waterLevel))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) < 1)) || (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((\old(waterLevel) != 1) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) < 1)) || (((pumpRunning == 0) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 61]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 721]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || ((\old(pumpRunning) == 0) && (0 != systemActive))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((\old(pumpRunning) != 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel <= 1)))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 600]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive))) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: (((((((((((1 <= pumpRunning) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (\old(waterLevel) <= 1)) && (0 != systemActive))) || (((1 <= pumpRunning) && (0 != systemActive)) && (\old(waterLevel) == 2))) || (((pumpRunning == 0) && (0 != systemActive)) && (\old(waterLevel) == 2))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && ((((long long) \old(waterLevel) + 1) == waterLevel) || (2 == waterLevel))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 799]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) || ((pumpRunning == 0) && (0 != systemActive))) || (((1 <= pumpRunning) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (pumpRunning == \result)) && (((2 == waterLevel) && (0 != systemActive)) || (waterLevel < 2))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:16:58,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE