./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:05:53,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:05:53,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:05:53,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:05:53,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:05:53,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:05:53,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:05:53,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:05:53,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:05:53,355 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:05:53,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:05:53,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:05:53,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:05:53,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:05:53,357 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:05:53,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:05:53,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:05:53,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:05:53,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:05:53,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:05:53,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:05:53,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:05:53,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:05:53,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:05:53,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:05:53,365 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:05:53,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:05:53,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:05:53,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:05:53,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:05:53,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:05:53,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:05:53,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:05:53,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:05:53,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:05:53,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:05:53,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:05:53,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:05:53,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:05:53,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:05:53,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:05:53,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:05:53,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2024-11-19 22:05:53,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:05:53,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:05:53,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:05:53,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:05:53,649 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:05:53,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2024-11-19 22:05:55,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:05:55,288 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:05:55,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2024-11-19 22:05:55,306 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd443f80/ff71a0bafa924b64ab72ca3adec086dc/FLAGfefbd5da2 [2024-11-19 22:05:55,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd443f80/ff71a0bafa924b64ab72ca3adec086dc [2024-11-19 22:05:55,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:05:55,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:05:55,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:05:55,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:05:55,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:05:55,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1182ddb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55, skipping insertion in model container [2024-11-19 22:05:55,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:05:55,658 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_spec2_product61.cil.c[13371,13384] [2024-11-19 22:05:55,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:05:55,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:05:55,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2024-11-19 22:05:55,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] [2024-11-19 22:05:55,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-11-19 22:05:55,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] [2024-11-19 22:05:55,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] [2024-11-19 22:05:55,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] [2024-11-19 22:05:55,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] [2024-11-19 22:05:55,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] [2024-11-19 22:05:55,789 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_spec2_product61.cil.c[13371,13384] [2024-11-19 22:05:55,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:05:55,831 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:05:55,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55 WrapperNode [2024-11-19 22:05:55,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:05:55,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:05:55,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:05:55,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:05:55,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,894 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 223 [2024-11-19 22:05:55,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:05:55,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:05:55,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:05:55,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:05:55,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,932 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]. [2024-11-19 22:05:55,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:05:55,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:05:55,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:05:55,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:05:55,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (1/1) ... [2024-11-19 22:05:55,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:05:55,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:05:55,991 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) [2024-11-19 22:05:55,994 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 [2024-11-19 22:05:56,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:05:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:05:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:05:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:05:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:05:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:05:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:05:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-19 22:05:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-19 22:05:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:05:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:05:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:05:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:05:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:05:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:05:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-19 22:05:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-19 22:05:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-19 22:05:56,042 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-19 22:05:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:05:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:05:56,042 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:05:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:05:56,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:05:56,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:05:56,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:05:56,406 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-19 22:05:56,406 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:05:56,422 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:05:56,423 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:05:56,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:05:56 BoogieIcfgContainer [2024-11-19 22:05:56,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:05:56,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:05:56,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:05:56,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:05:56,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:05:55" (1/3) ... [2024-11-19 22:05:56,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278c00f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:05:56, skipping insertion in model container [2024-11-19 22:05:56,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:05:55" (2/3) ... [2024-11-19 22:05:56,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278c00f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:05:56, skipping insertion in model container [2024-11-19 22:05:56,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:05:56" (3/3) ... [2024-11-19 22:05:56,431 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2024-11-19 22:05:56,444 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:05:56,444 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:05:56,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:05:56,520 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;@1b2458c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:05:56,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:05:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 22:05:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 22:05:56,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:56,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:56,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:56,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash 614135748, now seen corresponding path program 1 times [2024-11-19 22:05:56,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:56,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720235239] [2024-11-19 22:05:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 22:05:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:56,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:05:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720235239] [2024-11-19 22:05:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720235239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:56,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:56,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:05:56,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972079677] [2024-11-19 22:05:56,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:56,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:05:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:56,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:05:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:05:56,801 INFO L87 Difference]: Start difference. First operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:56,845 INFO L93 Difference]: Finished difference Result 211 states and 286 transitions. [2024-11-19 22:05:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:05:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-19 22:05:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:56,858 INFO L225 Difference]: With dead ends: 211 [2024-11-19 22:05:56,859 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 22:05:56,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:05:56,869 INFO L432 NwaCegarLoop]: 140 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, 140 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 [2024-11-19 22:05:56,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:05:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 22:05:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 22:05:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 82 states have internal predecessors, (96), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 22:05:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2024-11-19 22:05:56,922 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 25 [2024-11-19 22:05:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:56,923 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2024-11-19 22:05:56,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:56,923 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2024-11-19 22:05:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 22:05:56,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:56,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:56,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:05:56,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:56,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:56,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1570881816, now seen corresponding path program 1 times [2024-11-19 22:05:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:56,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061299211] [2024-11-19 22:05:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 22:05:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:05:57,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:57,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061299211] [2024-11-19 22:05:57,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061299211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:57,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:57,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:05:57,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237822749] [2024-11-19 22:05:57,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:57,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:05:57,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:05:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:05:57,062 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:57,081 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2024-11-19 22:05:57,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:05:57,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-19 22:05:57,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:57,084 INFO L225 Difference]: With dead ends: 167 [2024-11-19 22:05:57,084 INFO L226 Difference]: Without dead ends: 92 [2024-11-19 22:05:57,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:05:57,087 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 12 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 220 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 [2024-11-19 22:05:57,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:05:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-19 22:05:57,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-19 22:05:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.328358208955224) internal successors, (89), 76 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 22:05:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-11-19 22:05:57,100 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 26 [2024-11-19 22:05:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:57,100 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-11-19 22:05:57,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-11-19 22:05:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 22:05:57,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:57,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:57,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:05:57,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:57,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:57,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2142316214, now seen corresponding path program 1 times [2024-11-19 22:05:57,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:57,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16805292] [2024-11-19 22:05:57,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:57,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:05:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16805292] [2024-11-19 22:05:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16805292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:05:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287478951] [2024-11-19 22:05:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:05:57,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:57,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:05:57,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:05:57,214 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:57,236 INFO L93 Difference]: Finished difference Result 176 states and 231 transitions. [2024-11-19 22:05:57,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:05:57,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-19 22:05:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:57,239 INFO L225 Difference]: With dead ends: 176 [2024-11-19 22:05:57,239 INFO L226 Difference]: Without dead ends: 92 [2024-11-19 22:05:57,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:05:57,241 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 117 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 [2024-11-19 22:05:57,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:05:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-19 22:05:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-19 22:05:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 76 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 22:05:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2024-11-19 22:05:57,261 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 30 [2024-11-19 22:05:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:57,261 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2024-11-19 22:05:57,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:05:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2024-11-19 22:05:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-19 22:05:57,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:57,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:57,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:05:57,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash -92443095, now seen corresponding path program 1 times [2024-11-19 22:05:57,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:57,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026203659] [2024-11-19 22:05:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:57,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 22:05:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:05:57,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026203659] [2024-11-19 22:05:57,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026203659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:57,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:05:57,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770472151] [2024-11-19 22:05:57,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:57,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:05:57,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:05:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:05:57,449 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 22:05:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:57,768 INFO L93 Difference]: Finished difference Result 264 states and 338 transitions. [2024-11-19 22:05:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:05:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-11-19 22:05:57,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:57,771 INFO L225 Difference]: With dead ends: 264 [2024-11-19 22:05:57,771 INFO L226 Difference]: Without dead ends: 180 [2024-11-19 22:05:57,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:05:57,778 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 226 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:57,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 311 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:05:57,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-19 22:05:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2024-11-19 22:05:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2578125) internal successors, (161), 137 states have internal predecessors, (161), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-19 22:05:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2024-11-19 22:05:57,822 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 45 [2024-11-19 22:05:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:57,822 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2024-11-19 22:05:57,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 22:05:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2024-11-19 22:05:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 22:05:57,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:57,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:57,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:05:57,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:57,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:57,827 INFO L85 PathProgramCache]: Analyzing trace with hash 440823665, now seen corresponding path program 1 times [2024-11-19 22:05:57,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:57,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953605362] [2024-11-19 22:05:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:57,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:57,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:05:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 22:05:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:05:58,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:58,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953605362] [2024-11-19 22:05:58,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953605362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:58,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:58,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:05:58,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070922122] [2024-11-19 22:05:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:58,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:05:58,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:05:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:05:58,055 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:05:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:58,317 INFO L93 Difference]: Finished difference Result 340 states and 416 transitions. [2024-11-19 22:05:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:05:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-19 22:05:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:58,325 INFO L225 Difference]: With dead ends: 340 [2024-11-19 22:05:58,325 INFO L226 Difference]: Without dead ends: 174 [2024-11-19 22:05:58,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:05:58,327 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 153 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:58,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 385 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:05:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-19 22:05:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2024-11-19 22:05:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2301587301587302) internal successors, (155), 135 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-19 22:05:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2024-11-19 22:05:58,364 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 51 [2024-11-19 22:05:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:58,365 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2024-11-19 22:05:58,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:05:58,366 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2024-11-19 22:05:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 22:05:58,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:58,369 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, 1, 1, 1, 1, 1] [2024-11-19 22:05:58,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:05:58,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:58,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash 296938365, now seen corresponding path program 1 times [2024-11-19 22:05:58,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:58,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592814699] [2024-11-19 22:05:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:05:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:05:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 22:05:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:05:58,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:58,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592814699] [2024-11-19 22:05:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592814699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:58,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:58,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:05:58,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248724627] [2024-11-19 22:05:58,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:58,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:05:58,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:05:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:05:58,535 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:05:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:58,706 INFO L93 Difference]: Finished difference Result 341 states and 417 transitions. [2024-11-19 22:05:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:05:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-19 22:05:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:58,708 INFO L225 Difference]: With dead ends: 341 [2024-11-19 22:05:58,708 INFO L226 Difference]: Without dead ends: 177 [2024-11-19 22:05:58,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:05:58,709 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 67 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:58,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 409 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:05:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-19 22:05:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-11-19 22:05:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.2248062015503876) internal successors, (158), 138 states have internal predecessors, (158), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-19 22:05:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2024-11-19 22:05:58,725 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 61 [2024-11-19 22:05:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:58,725 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2024-11-19 22:05:58,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:05:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2024-11-19 22:05:58,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 22:05:58,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:58,729 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, 1, 1, 1, 1, 1] [2024-11-19 22:05:58,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:05:58,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:58,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 224551807, now seen corresponding path program 1 times [2024-11-19 22:05:58,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:58,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608928295] [2024-11-19 22:05:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:58,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:05:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:05:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 22:05:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:05:58,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:58,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608928295] [2024-11-19 22:05:58,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608928295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:58,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:58,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:05:58,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853114373] [2024-11-19 22:05:58,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:58,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:05:58,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:58,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:05:58,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:05:58,890 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:05:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:59,034 INFO L93 Difference]: Finished difference Result 346 states and 422 transitions. [2024-11-19 22:05:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:05:59,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-19 22:05:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:59,036 INFO L225 Difference]: With dead ends: 346 [2024-11-19 22:05:59,036 INFO L226 Difference]: Without dead ends: 179 [2024-11-19 22:05:59,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:05:59,037 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 66 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:59,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 319 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:05:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-19 22:05:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2024-11-19 22:05:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 140 states have internal predecessors, (160), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-19 22:05:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 211 transitions. [2024-11-19 22:05:59,067 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 211 transitions. Word has length 61 [2024-11-19 22:05:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:59,067 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 211 transitions. [2024-11-19 22:05:59,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:05:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 211 transitions. [2024-11-19 22:05:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 22:05:59,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:59,071 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, 1, 1, 1, 1, 1] [2024-11-19 22:05:59,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:05:59,071 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash -619453695, now seen corresponding path program 1 times [2024-11-19 22:05:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:59,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574136041] [2024-11-19 22:05:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:59,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:05:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:05:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:05:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 22:05:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:05:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574136041] [2024-11-19 22:05:59,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574136041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:59,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:05:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531067828] [2024-11-19 22:05:59,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:59,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:05:59,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:05:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:05:59,189 INFO L87 Difference]: Start difference. First operand 177 states and 211 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 22:05:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:59,440 INFO L93 Difference]: Finished difference Result 470 states and 590 transitions. [2024-11-19 22:05:59,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:05:59,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-11-19 22:05:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:59,443 INFO L225 Difference]: With dead ends: 470 [2024-11-19 22:05:59,443 INFO L226 Difference]: Without dead ends: 301 [2024-11-19 22:05:59,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:05:59,445 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 224 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:59,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 327 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:05:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-19 22:05:59,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2024-11-19 22:05:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.2126696832579185) internal successors, (268), 234 states have internal predecessors, (268), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2024-11-19 22:05:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 365 transitions. [2024-11-19 22:05:59,480 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 365 transitions. Word has length 61 [2024-11-19 22:05:59,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:05:59,481 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 365 transitions. [2024-11-19 22:05:59,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 22:05:59,482 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 365 transitions. [2024-11-19 22:05:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 22:05:59,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:05:59,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:05:59,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:05:59,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:05:59,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:05:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash -96720153, now seen corresponding path program 1 times [2024-11-19 22:05:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:05:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590182816] [2024-11-19 22:05:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:05:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:05:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:05:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:05:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:05:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:05:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:05:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 22:05:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:05:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:05:59,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:05:59,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590182816] [2024-11-19 22:05:59,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590182816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:05:59,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:05:59,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:05:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051311782] [2024-11-19 22:05:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:05:59,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:05:59,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:05:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:05:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:05:59,582 INFO L87 Difference]: Start difference. First operand 299 states and 365 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 22:05:59,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:05:59,971 INFO L93 Difference]: Finished difference Result 553 states and 696 transitions. [2024-11-19 22:05:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:05:59,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-19 22:05:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:05:59,975 INFO L225 Difference]: With dead ends: 553 [2024-11-19 22:05:59,975 INFO L226 Difference]: Without dead ends: 551 [2024-11-19 22:05:59,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:05:59,976 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 363 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:05:59,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 199 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:05:59,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-19 22:06:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 519. [2024-11-19 22:06:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 380 states have (on average 1.2105263157894737) internal successors, (460), 407 states have internal predecessors, (460), 72 states have call successors, (72), 56 states have call predecessors, (72), 66 states have return successors, (124), 71 states have call predecessors, (124), 72 states have call successors, (124) [2024-11-19 22:06:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 656 transitions. [2024-11-19 22:06:00,028 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 656 transitions. Word has length 65 [2024-11-19 22:06:00,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:00,030 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 656 transitions. [2024-11-19 22:06:00,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 22:06:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 656 transitions. [2024-11-19 22:06:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 22:06:00,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:00,032 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 22:06:00,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:06:00,033 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:00,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1155792988, now seen corresponding path program 1 times [2024-11-19 22:06:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:00,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211006492] [2024-11-19 22:06:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:00,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:06:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:06:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:06:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:06:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 22:06:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 22:06:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:06:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 22:06:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 22:06:00,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211006492] [2024-11-19 22:06:00,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211006492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:06:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306327122] [2024-11-19 22:06:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:00,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:00,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:06:00,485 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) [2024-11-19 22:06:00,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:06:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:00,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 22:06:00,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:06:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:06:00,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:06:00,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306327122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:00,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:06:00,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-19 22:06:00,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680586457] [2024-11-19 22:06:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:00,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:06:00,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:06:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:06:00,709 INFO L87 Difference]: Start difference. First operand 519 states and 656 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 22:06:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:00,760 INFO L93 Difference]: Finished difference Result 900 states and 1156 transitions. [2024-11-19 22:06:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:06:00,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2024-11-19 22:06:00,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:00,763 INFO L225 Difference]: With dead ends: 900 [2024-11-19 22:06:00,763 INFO L226 Difference]: Without dead ends: 442 [2024-11-19 22:06:00,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:06:00,765 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 55 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:00,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 246 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:06:00,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-19 22:06:00,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-11-19 22:06:00,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 324 states have (on average 1.212962962962963) internal successors, (393), 348 states have internal predecessors, (393), 62 states have call successors, (62), 47 states have call predecessors, (62), 55 states have return successors, (94), 61 states have call predecessors, (94), 62 states have call successors, (94) [2024-11-19 22:06:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 549 transitions. [2024-11-19 22:06:00,804 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 549 transitions. Word has length 120 [2024-11-19 22:06:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:00,804 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 549 transitions. [2024-11-19 22:06:00,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 22:06:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 549 transitions. [2024-11-19 22:06:00,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 22:06:00,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:00,806 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:06:00,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 22:06:01,010 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 [2024-11-19 22:06:01,011 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:01,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1678734663, now seen corresponding path program 1 times [2024-11-19 22:06:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:01,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574046995] [2024-11-19 22:06:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:06:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:06:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:06:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:06:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 22:06:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:06:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 22:06:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 22:06:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 22:06:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 22:06:01,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574046995] [2024-11-19 22:06:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574046995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:06:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038073939] [2024-11-19 22:06:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:01,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:06:01,395 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) [2024-11-19 22:06:01,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:06:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:01,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 22:06:01,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:06:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 22:06:01,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:06:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 22:06:01,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038073939] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 22:06:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 22:06:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 5] total 15 [2024-11-19 22:06:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818762305] [2024-11-19 22:06:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:01,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:06:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:06:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:06:01,909 INFO L87 Difference]: Start difference. First operand 442 states and 549 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 22:06:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:02,058 INFO L93 Difference]: Finished difference Result 1250 states and 1588 transitions. [2024-11-19 22:06:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:06:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-19 22:06:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:02,063 INFO L225 Difference]: With dead ends: 1250 [2024-11-19 22:06:02,063 INFO L226 Difference]: Without dead ends: 816 [2024-11-19 22:06:02,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 267 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:06:02,065 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 77 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:02,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 527 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:06:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-19 22:06:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 747. [2024-11-19 22:06:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 542 states have (on average 1.1845018450184501) internal successors, (642), 583 states have internal predecessors, (642), 106 states have call successors, (106), 82 states have call predecessors, (106), 98 states have return successors, (162), 106 states have call predecessors, (162), 106 states have call successors, (162) [2024-11-19 22:06:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 910 transitions. [2024-11-19 22:06:02,132 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 910 transitions. Word has length 122 [2024-11-19 22:06:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:02,132 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 910 transitions. [2024-11-19 22:06:02,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 22:06:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 910 transitions. [2024-11-19 22:06:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-19 22:06:02,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:02,136 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:06:02,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 22:06:02,340 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 [2024-11-19 22:06:02,341 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:02,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:02,341 INFO L85 PathProgramCache]: Analyzing trace with hash 278118659, now seen corresponding path program 1 times [2024-11-19 22:06:02,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:02,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730107759] [2024-11-19 22:06:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:02,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:06:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:06:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:06:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:06:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:06:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 22:06:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 22:06:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:06:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 22:06:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 22:06:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 22:06:02,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:02,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730107759] [2024-11-19 22:06:02,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730107759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:06:02,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533422224] [2024-11-19 22:06:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:02,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:02,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:06:02,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:06:02,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:06:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:02,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 22:06:02,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:06:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 22:06:03,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:06:03,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533422224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:03,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:06:03,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 23 [2024-11-19 22:06:03,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511762252] [2024-11-19 22:06:03,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:03,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:06:03,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:03,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:06:03,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:06:03,004 INFO L87 Difference]: Start difference. First operand 747 states and 910 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:06:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:03,211 INFO L93 Difference]: Finished difference Result 1447 states and 1773 transitions. [2024-11-19 22:06:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:06:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2024-11-19 22:06:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:03,216 INFO L225 Difference]: With dead ends: 1447 [2024-11-19 22:06:03,217 INFO L226 Difference]: Without dead ends: 708 [2024-11-19 22:06:03,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:06:03,219 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 74 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:03,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1192 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:06:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-19 22:06:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 700. [2024-11-19 22:06:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 509 states have (on average 1.1728880157170924) internal successors, (597), 544 states have internal predecessors, (597), 101 states have call successors, (101), 77 states have call predecessors, (101), 89 states have return successors, (142), 99 states have call predecessors, (142), 101 states have call successors, (142) [2024-11-19 22:06:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 840 transitions. [2024-11-19 22:06:03,297 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 840 transitions. Word has length 126 [2024-11-19 22:06:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:03,297 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 840 transitions. [2024-11-19 22:06:03,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:06:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 840 transitions. [2024-11-19 22:06:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:06:03,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:03,303 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 22:06:03,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 22:06:03,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:03,507 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:03,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash 617383564, now seen corresponding path program 1 times [2024-11-19 22:06:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:03,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332116261] [2024-11-19 22:06:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:06:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:06:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:06:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:06:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 22:06:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 22:06:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:06:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-19 22:06:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 22:06:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 22:06:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:06:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 22:06:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-19 22:06:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:06:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-19 22:06:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 22:06:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:06:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-19 22:06:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 60 proven. 20 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-19 22:06:03,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332116261] [2024-11-19 22:06:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332116261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:06:03,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824256923] [2024-11-19 22:06:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:03,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:03,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:06:03,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:06:03,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:06:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:03,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 22:06:03,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:06:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 22:06:04,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:06:04,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824256923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:04,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:06:04,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2024-11-19 22:06:04,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250068921] [2024-11-19 22:06:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:04,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:06:04,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:06:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-19 22:06:04,157 INFO L87 Difference]: Start difference. First operand 700 states and 840 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 22:06:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:04,322 INFO L93 Difference]: Finished difference Result 1125 states and 1354 transitions. [2024-11-19 22:06:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:06:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2024-11-19 22:06:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:04,324 INFO L225 Difference]: With dead ends: 1125 [2024-11-19 22:06:04,324 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 22:06:04,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-19 22:06:04,328 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 62 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:04,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 580 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:06:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 22:06:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 22:06:04,329 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) [2024-11-19 22:06:04,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 22:06:04,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2024-11-19 22:06:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:04,330 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 22:06:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 22:06:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 22:06:04,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 22:06:04,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:06:04,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 22:06:04,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:06:04,539 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:06:04,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 22:06:08,631 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:06:08,649 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~pumpRunning~0)|))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~methAndRunningLastTime~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (= ~methAndRunningLastTime~0 0) (<= 1 ~methaneLevelCritical~0) .cse1))) [2024-11-19 22:06:08,666 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (or (not .cse0) (= ~methaneLevelCritical~0 0)) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse1 .cse2 (<= 1 |old(~methaneLevelCritical~0)|) .cse3) (and (<= 1 ~pumpRunning~0) .cse2 .cse0 .cse3))))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse0) (= ~methaneLevelCritical~0 0)) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse1 .cse2 (<= 1 |old(~methaneLevelCritical~0)|) .cse3) (and (<= 1 ~pumpRunning~0) .cse2 .cse0 .cse3)))))) [2024-11-19 22:06:08,672 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-19 22:06:08,680 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~methAndRunningLastTime~0 0))) (and (or (not .cse0) .cse1) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse4 (<= 1 |old(~pumpRunning~0)|)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= |old(~methAndRunningLastTime~0)| 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse2 .cse3 .cse4) (and .cse2 .cse5 .cse3 .cse0) (and .cse6 .cse5 .cse3 .cse4) (and .cse6 .cse5 .cse3 .cse0))) (or .cse1 (< ~methaneLevelCritical~0 1)) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~pumpRunning~0 0))) (and (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse3 .cse1 .cse2) (and .cse0 .cse4 .cse2))) (or .cse5 (< ~methaneLevelCritical~0 1)) (or .cse5 (not .cse3)))) [2024-11-19 22:06:08,698 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (<= 1 |old(~pumpRunning~0)|)) (and .cse2 (<= 1 ~methaneLevelCritical~0) .cse1 .cse3) (and .cse2 .cse0 .cse1 .cse3)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2024-11-19 22:06:08,706 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse1 .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse1 .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2024-11-19 22:06:08,713 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (<= 1 |old(~pumpRunning~0)|)) (and .cse2 (<= 1 ~methaneLevelCritical~0) .cse1 .cse3) (and .cse2 .cse0 .cse1 .cse3)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2024-11-19 22:06:08,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:06:08 BoogieIcfgContainer [2024-11-19 22:06:08,728 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:06:08,729 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:06:08,729 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:06:08,729 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:06:08,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:05:56" (3/4) ... [2024-11-19 22:06:08,732 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-19 22:06:08,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-19 22:06:08,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:06:08,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-19 22:06:08,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:06:08,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-19 22:06:08,743 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-19 22:06:08,744 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 22:06:08,744 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 22:06:08,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:06:08,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:06:08,845 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:06:08,845 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 22:06:08,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:06:08,846 INFO L158 Benchmark]: Toolchain (without parser) took 13523.62ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 119.7MB in the beginning and 161.0MB in the end (delta: -41.2MB). Peak memory consumption was 126.0MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,846 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:06:08,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.04ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 97.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.23ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,847 INFO L158 Benchmark]: Boogie Preprocessor took 56.37ms. Allocated memory is still 167.8MB. Free memory was 95.5MB in the beginning and 93.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,847 INFO L158 Benchmark]: RCFGBuilder took 467.87ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 72.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,848 INFO L158 Benchmark]: TraceAbstraction took 12303.10ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 72.0MB in the beginning and 169.4MB in the end (delta: -97.3MB). Peak memory consumption was 132.9MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,848 INFO L158 Benchmark]: Witness Printer took 116.70ms. Allocated memory is still 333.4MB. Free memory was 169.4MB in the beginning and 161.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 22:06:08,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.04ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 97.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.23ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.37ms. Allocated memory is still 167.8MB. Free memory was 95.5MB in the beginning and 93.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.87ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 72.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12303.10ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 72.0MB in the beginning and 169.4MB in the end (delta: -97.3MB). Peak memory consumption was 132.9MB. Max. memory is 16.1GB. * Witness Printer took 116.70ms. Allocated memory is still 333.4MB. Free memory was 169.4MB in the beginning and 161.0MB 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,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] - GenericResultAtLocation [Line: 571]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] - GenericResultAtLocation [Line: 671]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] - GenericResultAtLocation [Line: 779]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 567]: 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 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1520 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1479 mSDsluCounter, 4972 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3300 mSDsCounter, 366 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1389 IncrementalHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 366 mSolverCounterUnsat, 1672 mSDtfsCounter, 1389 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 978 GetRequests, 867 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=747occurred in iteration=11, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 123 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1529 NumberOfCodeBlocks, 1529 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1633 ConstructedInterpolants, 0 QuantifiedInterpolants, 2824 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1684 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 644/715 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: 617]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 616]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 919]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((pumpRunning == 0) && ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= \old(pumpRunning))))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 809]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) && (((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 703]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 785]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((methAndRunningLastTime == 0) || (methaneLevelCritical < 1))) && ((methAndRunningLastTime == 0) || (pumpRunning != 0))) Ensures: ((((((((pumpRunning == \old(pumpRunning)) && (methAndRunningLastTime == 0)) || (\old(pumpRunning) < 1)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) && ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methaneLevelCritical == 0) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) && (1 <= \old(pumpRunning)))) || ((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0)))) && ((methaneLevelCritical < 1) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && (((\old(pumpRunning) != 0) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel)))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 94]: 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: 715]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical <= \result) && ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)))) && ((methaneLevelCritical != 0) || (\result == 0))) && (((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 817]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 <= waterLevel)))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 691]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel)) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 843]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 <= waterLevel)))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 927]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1))) && (((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-19 22:06:08,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE