./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/product-lines/minepump_spec5_product64.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 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:07:08,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:07:08,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:07:08,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:07:08,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:07:08,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:07:08,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:07:08,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:07:08,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:07:08,465 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:07:08,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:07:08,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:07:08,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:07:08,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:07:08,469 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:07:08,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:07:08,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:07:08,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:07:08,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:07:08,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:07:08,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:07:08,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:07:08,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:07:08,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:07:08,472 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:07:08,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:07:08,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:07:08,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:07:08,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:07:08,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:07:08,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:07:08,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:07:08,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:07:08,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:07:08,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:07:08,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:07:08,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:07:08,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:07:08,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:07:08,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:07:08,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:07:08,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:07:08,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2024-11-22 02:07:08,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:07:08,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:07:08,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:07:08,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:07:08,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:07:08,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-22 02:07:09,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:07:10,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:07:10,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-22 02:07:10,099 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfcb4bc1/7baa239cb12b4782a6341aabc883bad0/FLAG12375cd0e [2024-11-22 02:07:10,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfcb4bc1/7baa239cb12b4782a6341aabc883bad0 [2024-11-22 02:07:10,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:07:10,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:07:10,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:07:10,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:07:10,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:07:10,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbc809e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10, skipping insertion in model container [2024-11-22 02:07:10,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:07:10,720 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2024-11-22 02:07:10,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:07:10,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:07:10,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-22 02:07:10,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] [2024-11-22 02:07:10,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] [2024-11-22 02:07:10,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] [2024-11-22 02:07:10,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] [2024-11-22 02:07:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] [2024-11-22 02:07:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] [2024-11-22 02:07:10,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] [2024-11-22 02:07:10,849 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2024-11-22 02:07:10,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:07:10,897 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:07:10,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10 WrapperNode [2024-11-22 02:07:10,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:07:10,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:07:10,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:07:10,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:07:10,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,930 INFO L138 Inliner]: procedures = 61, calls = 110, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 249 [2024-11-22 02:07:10,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:07:10,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:07:10,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:07:10,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:07:10,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,952 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]. [2024-11-22 02:07:10,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:07:10,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:07:10,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:07:10,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:07:10,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (1/1) ... [2024-11-22 02:07:10,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:07:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:11,004 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) [2024-11-22 02:07:11,008 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 [2024-11-22 02:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:07:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:07:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:07:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:07:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:07:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:07:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:07:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:07:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:07:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-22 02:07:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-22 02:07:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-22 02:07:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-22 02:07:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-22 02:07:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-22 02:07:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:07:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:07:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:07:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:07:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:07:11,152 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:07:11,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:07:11,399 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-22 02:07:11,400 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:07:11,413 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:07:11,414 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:07:11,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:11 BoogieIcfgContainer [2024-11-22 02:07:11,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:07:11,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:07:11,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:07:11,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:07:11,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:07:10" (1/3) ... [2024-11-22 02:07:11,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585a42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:07:11, skipping insertion in model container [2024-11-22 02:07:11,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:10" (2/3) ... [2024-11-22 02:07:11,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585a42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:07:11, skipping insertion in model container [2024-11-22 02:07:11,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:11" (3/3) ... [2024-11-22 02:07:11,420 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2024-11-22 02:07:11,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:07:11,433 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:07:11,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:07:11,497 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;@39380511, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:07:11,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:07:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 98 states have internal predecessors, (118), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 02:07:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 02:07:11,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:11,511 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:11,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:11,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1423497268, now seen corresponding path program 1 times [2024-11-22 02:07:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924348709] [2024-11-22 02:07:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:11,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:11,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:11,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924348709] [2024-11-22 02:07:11,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924348709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:11,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:11,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:07:11,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364199139] [2024-11-22 02:07:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:11,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:07:11,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:07:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:07:11,713 INFO L87 Difference]: Start difference. First operand has 118 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 98 states have internal predecessors, (118), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:11,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:11,736 INFO L93 Difference]: Finished difference Result 227 states and 306 transitions. [2024-11-22 02:07:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:07:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-22 02:07:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:11,745 INFO L225 Difference]: With dead ends: 227 [2024-11-22 02:07:11,745 INFO L226 Difference]: Without dead ends: 109 [2024-11-22 02:07:11,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:07:11,750 INFO L432 NwaCegarLoop]: 150 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, 150 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 [2024-11-22 02:07:11,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-22 02:07:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-22 02:07:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 80 states have (on average 1.3) internal successors, (104), 90 states have internal predecessors, (104), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 02:07:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2024-11-22 02:07:11,790 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 32 [2024-11-22 02:07:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:11,790 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2024-11-22 02:07:11,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2024-11-22 02:07:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 02:07:11,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:11,793 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:11,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:07:11,793 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:11,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1062885571, now seen corresponding path program 1 times [2024-11-22 02:07:11,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:11,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252661783] [2024-11-22 02:07:11,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:11,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:11,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:11,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252661783] [2024-11-22 02:07:11,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252661783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:11,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:11,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:07:11,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620725925] [2024-11-22 02:07:11,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:11,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:07:11,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:11,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:07:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:07:11,903 INFO L87 Difference]: Start difference. First operand 109 states and 141 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:11,922 INFO L93 Difference]: Finished difference Result 178 states and 230 transitions. [2024-11-22 02:07:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:07:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-22 02:07:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:11,924 INFO L225 Difference]: With dead ends: 178 [2024-11-22 02:07:11,924 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 02:07:11,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:07:11,925 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 17 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 234 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 [2024-11-22 02:07:11,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 02:07:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 02:07:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 84 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 02:07:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 129 transitions. [2024-11-22 02:07:11,934 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 129 transitions. Word has length 33 [2024-11-22 02:07:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:11,934 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 129 transitions. [2024-11-22 02:07:11,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:11,935 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2024-11-22 02:07:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 02:07:11,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:11,936 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:11,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:07:11,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:11,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:11,937 INFO L85 PathProgramCache]: Analyzing trace with hash 214115468, now seen corresponding path program 1 times [2024-11-22 02:07:11,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:11,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267441687] [2024-11-22 02:07:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:11,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:12,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:12,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267441687] [2024-11-22 02:07:12,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267441687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:12,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:12,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:07:12,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860106505] [2024-11-22 02:07:12,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:12,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:07:12,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:12,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:07:12,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:07:12,068 INFO L87 Difference]: Start difference. First operand 100 states and 129 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:07:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:12,146 INFO L93 Difference]: Finished difference Result 239 states and 312 transitions. [2024-11-22 02:07:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:07:12,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-11-22 02:07:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:12,149 INFO L225 Difference]: With dead ends: 239 [2024-11-22 02:07:12,149 INFO L226 Difference]: Without dead ends: 147 [2024-11-22 02:07:12,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:07:12,151 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 118 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:12,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 478 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:12,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-22 02:07:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-11-22 02:07:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 120 states have internal predecessors, (142), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (23), 16 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-22 02:07:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2024-11-22 02:07:12,174 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 38 [2024-11-22 02:07:12,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:12,176 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2024-11-22 02:07:12,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:07:12,177 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2024-11-22 02:07:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 02:07:12,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:12,178 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] [2024-11-22 02:07:12,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:07:12,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:12,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:12,179 INFO L85 PathProgramCache]: Analyzing trace with hash 384205224, now seen corresponding path program 1 times [2024-11-22 02:07:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:12,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551992406] [2024-11-22 02:07:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 02:07:12,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:12,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551992406] [2024-11-22 02:07:12,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551992406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:12,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:12,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:07:12,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966974714] [2024-11-22 02:07:12,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:12,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:07:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:07:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:07:12,386 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:12,557 INFO L93 Difference]: Finished difference Result 328 states and 436 transitions. [2024-11-22 02:07:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:07:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-22 02:07:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:12,561 INFO L225 Difference]: With dead ends: 328 [2024-11-22 02:07:12,564 INFO L226 Difference]: Without dead ends: 192 [2024-11-22 02:07:12,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:07:12,566 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 65 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:12,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 539 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:07:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-22 02:07:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2024-11-22 02:07:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 143 states have (on average 1.2587412587412588) internal successors, (180), 155 states have internal predecessors, (180), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (34), 24 states have call predecessors, (34), 26 states have call successors, (34) [2024-11-22 02:07:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-22 02:07:12,587 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 41 [2024-11-22 02:07:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:12,588 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-22 02:07:12,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:07:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-22 02:07:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 02:07:12,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:12,590 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, 1, 1, 1] [2024-11-22 02:07:12,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:07:12,590 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:12,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:12,591 INFO L85 PathProgramCache]: Analyzing trace with hash -602736799, now seen corresponding path program 1 times [2024-11-22 02:07:12,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:12,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184215099] [2024-11-22 02:07:12,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:12,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:12,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:12,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184215099] [2024-11-22 02:07:12,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184215099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:12,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:12,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:07:12,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967431508] [2024-11-22 02:07:12,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:12,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:07:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:12,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:07:12,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:07:12,654 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 02:07:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:12,671 INFO L93 Difference]: Finished difference Result 376 states and 474 transitions. [2024-11-22 02:07:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:07:12,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 68 [2024-11-22 02:07:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:12,673 INFO L225 Difference]: With dead ends: 376 [2024-11-22 02:07:12,673 INFO L226 Difference]: Without dead ends: 193 [2024-11-22 02:07:12,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:07:12,676 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 38 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:12,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 288 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-22 02:07:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2024-11-22 02:07:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 155 states have internal predecessors, (179), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-22 02:07:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions. [2024-11-22 02:07:12,702 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 68 [2024-11-22 02:07:12,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:12,702 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions. [2024-11-22 02:07:12,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 02:07:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions. [2024-11-22 02:07:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 02:07:12,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:12,704 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] [2024-11-22 02:07:12,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:07:12,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:12,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash -578050563, now seen corresponding path program 1 times [2024-11-22 02:07:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:12,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026137264] [2024-11-22 02:07:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:12,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:12,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:12,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026137264] [2024-11-22 02:07:12,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026137264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:12,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:12,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:07:12,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982166146] [2024-11-22 02:07:12,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:12,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:07:12,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:07:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:07:12,797 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:07:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:12,824 INFO L93 Difference]: Finished difference Result 377 states and 482 transitions. [2024-11-22 02:07:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:07:12,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 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 65 [2024-11-22 02:07:12,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:12,827 INFO L225 Difference]: With dead ends: 377 [2024-11-22 02:07:12,828 INFO L226 Difference]: Without dead ends: 194 [2024-11-22 02:07:12,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:07:12,829 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:12,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-22 02:07:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-22 02:07:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 158 states have internal predecessors, (182), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-22 02:07:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 240 transitions. [2024-11-22 02:07:12,847 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 240 transitions. Word has length 65 [2024-11-22 02:07:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:12,848 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 240 transitions. [2024-11-22 02:07:12,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:07:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 240 transitions. [2024-11-22 02:07:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 02:07:12,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:12,849 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] [2024-11-22 02:07:12,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:07:12,850 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:12,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:12,850 INFO L85 PathProgramCache]: Analyzing trace with hash 808152831, now seen corresponding path program 1 times [2024-11-22 02:07:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:12,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834714704] [2024-11-22 02:07:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:12,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:12,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834714704] [2024-11-22 02:07:12,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834714704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:12,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:12,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:07:12,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691506920] [2024-11-22 02:07:12,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:12,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:07:12,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:07:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:07:12,927 INFO L87 Difference]: Start difference. First operand 194 states and 240 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:07:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:12,949 INFO L93 Difference]: Finished difference Result 382 states and 487 transitions. [2024-11-22 02:07:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:07:12,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 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 65 [2024-11-22 02:07:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:12,952 INFO L225 Difference]: With dead ends: 382 [2024-11-22 02:07:12,952 INFO L226 Difference]: Without dead ends: 196 [2024-11-22 02:07:12,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:07:12,953 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:12,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 375 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:07:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-22 02:07:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-22 02:07:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 160 states have internal predecessors, (184), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-22 02:07:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2024-11-22 02:07:12,967 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 65 [2024-11-22 02:07:12,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:12,968 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2024-11-22 02:07:12,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:07:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2024-11-22 02:07:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 02:07:12,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:12,969 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] [2024-11-22 02:07:12,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:07:12,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:12,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1509752705, now seen corresponding path program 1 times [2024-11-22 02:07:12,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:12,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453699186] [2024-11-22 02:07:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:12,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:13,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:13,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453699186] [2024-11-22 02:07:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453699186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:13,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:13,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:07:13,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118512549] [2024-11-22 02:07:13,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:13,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:07:13,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:13,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:07:13,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:07:13,050 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-22 02:07:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:13,151 INFO L93 Difference]: Finished difference Result 650 states and 829 transitions. [2024-11-22 02:07:13,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:07:13,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 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 65 [2024-11-22 02:07:13,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:13,154 INFO L225 Difference]: With dead ends: 650 [2024-11-22 02:07:13,154 INFO L226 Difference]: Without dead ends: 462 [2024-11-22 02:07:13,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:07:13,156 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 159 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:13,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 421 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:07:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-22 02:07:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 453. [2024-11-22 02:07:13,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 341 states have (on average 1.2258064516129032) internal successors, (418), 364 states have internal predecessors, (418), 61 states have call successors, (61), 49 states have call predecessors, (61), 50 states have return successors, (87), 58 states have call predecessors, (87), 61 states have call successors, (87) [2024-11-22 02:07:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 566 transitions. [2024-11-22 02:07:13,183 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 566 transitions. Word has length 65 [2024-11-22 02:07:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:13,184 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 566 transitions. [2024-11-22 02:07:13,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-22 02:07:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 566 transitions. [2024-11-22 02:07:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 02:07:13,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:13,188 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, 1, 1, 1, 1] [2024-11-22 02:07:13,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:07:13,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:13,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:13,189 INFO L85 PathProgramCache]: Analyzing trace with hash 920584039, now seen corresponding path program 1 times [2024-11-22 02:07:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:13,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644939147] [2024-11-22 02:07:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:07:13,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:13,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644939147] [2024-11-22 02:07:13,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644939147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:07:13,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:07:13,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:07:13,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351512987] [2024-11-22 02:07:13,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:07:13,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:07:13,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:07:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:07:13,345 INFO L87 Difference]: Start difference. First operand 453 states and 566 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-22 02:07:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:13,812 INFO L93 Difference]: Finished difference Result 1284 states and 1652 transitions. [2024-11-22 02:07:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 02:07:13,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 69 [2024-11-22 02:07:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:13,817 INFO L225 Difference]: With dead ends: 1284 [2024-11-22 02:07:13,817 INFO L226 Difference]: Without dead ends: 932 [2024-11-22 02:07:13,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:07:13,819 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 334 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:13,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 694 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:07:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-22 02:07:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 836. [2024-11-22 02:07:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 626 states have (on average 1.2108626198083068) internal successors, (758), 670 states have internal predecessors, (758), 110 states have call successors, (110), 85 states have call predecessors, (110), 99 states have return successors, (165), 110 states have call predecessors, (165), 110 states have call successors, (165) [2024-11-22 02:07:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1033 transitions. [2024-11-22 02:07:13,879 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1033 transitions. Word has length 69 [2024-11-22 02:07:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:13,879 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1033 transitions. [2024-11-22 02:07:13,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-22 02:07:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1033 transitions. [2024-11-22 02:07:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:07:13,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:13,881 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 02:07:13,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:07:13,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1227003405, now seen corresponding path program 1 times [2024-11-22 02:07:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259542562] [2024-11-22 02:07:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:07:14,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:14,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259542562] [2024-11-22 02:07:14,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259542562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:07:14,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537550912] [2024-11-22 02:07:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:14,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:07:14,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:14,026 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) [2024-11-22 02:07:14,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:07:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:14,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:07:14,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:07:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 31 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:07:14,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:07:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:07:14,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537550912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:07:14,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:07:14,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-22 02:07:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701501006] [2024-11-22 02:07:14,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:07:14,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:07:14,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:07:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:07:14,516 INFO L87 Difference]: Start difference. First operand 836 states and 1033 transitions. Second operand has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-22 02:07:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:14,932 INFO L93 Difference]: Finished difference Result 1905 states and 2420 transitions. [2024-11-22 02:07:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 02:07:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) Word has length 123 [2024-11-22 02:07:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:14,939 INFO L225 Difference]: With dead ends: 1905 [2024-11-22 02:07:14,939 INFO L226 Difference]: Without dead ends: 1166 [2024-11-22 02:07:14,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 241 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-22 02:07:14,942 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 241 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:14,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1778 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:07:14,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-22 02:07:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1022. [2024-11-22 02:07:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 756 states have (on average 1.1957671957671958) internal successors, (904), 817 states have internal predecessors, (904), 137 states have call successors, (137), 115 states have call predecessors, (137), 128 states have return successors, (183), 132 states have call predecessors, (183), 137 states have call successors, (183) [2024-11-22 02:07:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1224 transitions. [2024-11-22 02:07:15,029 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1224 transitions. Word has length 123 [2024-11-22 02:07:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:15,030 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1224 transitions. [2024-11-22 02:07:15,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-22 02:07:15,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1224 transitions. [2024-11-22 02:07:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-22 02:07:15,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:15,033 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:15,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:07:15,239 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 [2024-11-22 02:07:15,240 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:15,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 238833209, now seen corresponding path program 1 times [2024-11-22 02:07:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:15,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745097455] [2024-11-22 02:07:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 96 proven. 35 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 02:07:15,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:15,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745097455] [2024-11-22 02:07:15,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745097455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:07:15,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090712993] [2024-11-22 02:07:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:15,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:07:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:15,463 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) [2024-11-22 02:07:15,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:07:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:15,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 02:07:15,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:07:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 167 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 02:07:15,779 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:07:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 81 proven. 39 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 02:07:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090712993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:07:16,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:07:16,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-22 02:07:16,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36208363] [2024-11-22 02:07:16,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:07:16,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 02:07:16,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:16,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 02:07:16,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:07:16,204 INFO L87 Difference]: Start difference. First operand 1022 states and 1224 transitions. Second operand has 25 states, 25 states have (on average 9.24) internal successors, (231), 22 states have internal predecessors, (231), 10 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (43), 11 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-22 02:07:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:17,769 INFO L93 Difference]: Finished difference Result 3245 states and 4069 transitions. [2024-11-22 02:07:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 02:07:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.24) internal successors, (231), 22 states have internal predecessors, (231), 10 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (43), 11 states have call predecessors, (43), 10 states have call successors, (43) Word has length 215 [2024-11-22 02:07:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:17,778 INFO L225 Difference]: With dead ends: 3245 [2024-11-22 02:07:17,778 INFO L226 Difference]: Without dead ends: 2174 [2024-11-22 02:07:17,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 424 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-11-22 02:07:17,783 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 792 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:17,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1276 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 02:07:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2024-11-22 02:07:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2095. [2024-11-22 02:07:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1570 states have (on average 1.1426751592356688) internal successors, (1794), 1661 states have internal predecessors, (1794), 286 states have call successors, (286), 248 states have call predecessors, (286), 238 states have return successors, (333), 251 states have call predecessors, (333), 286 states have call successors, (333) [2024-11-22 02:07:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2413 transitions. [2024-11-22 02:07:17,915 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2413 transitions. Word has length 215 [2024-11-22 02:07:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:17,916 INFO L471 AbstractCegarLoop]: Abstraction has 2095 states and 2413 transitions. [2024-11-22 02:07:17,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.24) internal successors, (231), 22 states have internal predecessors, (231), 10 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (43), 11 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-22 02:07:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2413 transitions. [2024-11-22 02:07:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-22 02:07:17,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:17,922 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:17,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 02:07:18,122 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 [2024-11-22 02:07:18,123 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:18,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1449036705, now seen corresponding path program 1 times [2024-11-22 02:07:18,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:18,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821665576] [2024-11-22 02:07:18,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:18,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 106 proven. 62 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 02:07:18,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:18,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821665576] [2024-11-22 02:07:18,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821665576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:07:18,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156901396] [2024-11-22 02:07:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:18,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:07:18,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:18,401 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) [2024-11-22 02:07:18,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:07:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:18,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 02:07:18,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:07:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 211 proven. 11 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-22 02:07:18,659 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:07:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 106 proven. 62 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 02:07:19,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156901396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:07:19,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:07:19,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2024-11-22 02:07:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699809466] [2024-11-22 02:07:19,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:07:19,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 02:07:19,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:19,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 02:07:19,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-22 02:07:19,100 INFO L87 Difference]: Start difference. First operand 2095 states and 2413 transitions. Second operand has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-22 02:07:19,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:19,762 INFO L93 Difference]: Finished difference Result 4136 states and 4776 transitions. [2024-11-22 02:07:19,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 02:07:19,763 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) Word has length 239 [2024-11-22 02:07:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:19,772 INFO L225 Difference]: With dead ends: 4136 [2024-11-22 02:07:19,772 INFO L226 Difference]: Without dead ends: 2227 [2024-11-22 02:07:19,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 474 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 02:07:19,777 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 345 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:19,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1354 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:07:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-11-22 02:07:19,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2016. [2024-11-22 02:07:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1515 states have (on average 1.1366336633663365) internal successors, (1722), 1595 states have internal predecessors, (1722), 258 states have call successors, (258), 242 states have call predecessors, (258), 242 states have return successors, (305), 240 states have call predecessors, (305), 258 states have call successors, (305) [2024-11-22 02:07:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2285 transitions. [2024-11-22 02:07:19,909 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2285 transitions. Word has length 239 [2024-11-22 02:07:19,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:19,910 INFO L471 AbstractCegarLoop]: Abstraction has 2016 states and 2285 transitions. [2024-11-22 02:07:19,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-22 02:07:19,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2285 transitions. [2024-11-22 02:07:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-22 02:07:19,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:19,914 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-22 02:07:19,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:07:20,114 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 [2024-11-22 02:07:20,115 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:20,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1667126754, now seen corresponding path program 1 times [2024-11-22 02:07:20,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:20,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109451928] [2024-11-22 02:07:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:20,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 101 proven. 60 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-22 02:07:20,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109451928] [2024-11-22 02:07:20,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109451928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:07:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726765357] [2024-11-22 02:07:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:20,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:07:20,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:20,607 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) [2024-11-22 02:07:20,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:07:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:20,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 02:07:20,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:07:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 151 proven. 26 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 02:07:20,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:07:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 107 proven. 45 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-22 02:07:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726765357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:07:21,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:07:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 21 [2024-11-22 02:07:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366541206] [2024-11-22 02:07:21,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:07:21,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 02:07:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 02:07:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:07:21,384 INFO L87 Difference]: Start difference. First operand 2016 states and 2285 transitions. Second operand has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) [2024-11-22 02:07:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:22,156 INFO L93 Difference]: Finished difference Result 4040 states and 4670 transitions. [2024-11-22 02:07:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 02:07:22,157 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) Word has length 240 [2024-11-22 02:07:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:22,167 INFO L225 Difference]: With dead ends: 4040 [2024-11-22 02:07:22,168 INFO L226 Difference]: Without dead ends: 2861 [2024-11-22 02:07:22,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 474 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 02:07:22,171 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 686 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:22,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 911 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:07:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2024-11-22 02:07:22,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2521. [2024-11-22 02:07:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1895 states have (on average 1.1319261213720317) internal successors, (2145), 1989 states have internal predecessors, (2145), 327 states have call successors, (327), 306 states have call predecessors, (327), 298 states have return successors, (369), 301 states have call predecessors, (369), 327 states have call successors, (369) [2024-11-22 02:07:22,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 2841 transitions. [2024-11-22 02:07:22,309 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 2841 transitions. Word has length 240 [2024-11-22 02:07:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:22,309 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 2841 transitions. [2024-11-22 02:07:22,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) [2024-11-22 02:07:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 2841 transitions. [2024-11-22 02:07:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-22 02:07:22,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:07:22,315 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-22 02:07:22,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 02:07:22,519 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 [2024-11-22 02:07:22,520 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:07:22,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:07:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash 478316617, now seen corresponding path program 1 times [2024-11-22 02:07:22,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:07:22,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409996480] [2024-11-22 02:07:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:07:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 130 proven. 77 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-22 02:07:22,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:07:22,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409996480] [2024-11-22 02:07:22,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409996480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:07:22,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346295622] [2024-11-22 02:07:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:07:22,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:07:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:07:22,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:07:22,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 02:07:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:07:22,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-22 02:07:22,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:07:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 156 proven. 83 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-22 02:07:23,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:07:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 95 proven. 127 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-22 02:07:23,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346295622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:07:23,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:07:23,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 16] total 24 [2024-11-22 02:07:23,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118928958] [2024-11-22 02:07:23,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:07:23,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 02:07:23,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:07:23,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 02:07:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-22 02:07:23,805 INFO L87 Difference]: Start difference. First operand 2521 states and 2841 transitions. Second operand has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-22 02:07:24,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:07:24,896 INFO L93 Difference]: Finished difference Result 6209 states and 7085 transitions. [2024-11-22 02:07:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 02:07:24,897 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) Word has length 278 [2024-11-22 02:07:24,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:07:24,900 INFO L225 Difference]: With dead ends: 6209 [2024-11-22 02:07:24,901 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:07:24,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 536 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 02:07:24,910 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 602 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:07:24,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1445 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:07:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:07:24,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:07:24,911 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) [2024-11-22 02:07:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:07:24,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2024-11-22 02:07:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:07:24,914 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:07:24,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-22 02:07:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:07:24,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:07:24,916 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:07:24,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 02:07:25,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 02:07:25,119 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:07:25,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:07:48,436 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:07:48,452 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= |old(~pumpRunning~0)| 1) (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) Eliminated clause: (and (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) [2024-11-22 02:07:48,469 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or .cse0 (not .cse1)) (or (not .cse0) .cse1) (let ((.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse2))))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or .cse0 (not .cse1)) (or (not .cse0) .cse1) (let ((.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse2)))))) [2024-11-22 02:07:48,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:48,475 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse8)) (.cse6 (= |old(~pumpRunning~0)| 1)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse2 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 (and (= ~pumpRunning~0 0) .cse5)) (let ((.cse7 (<= |old(~waterLevel~0)| 2))) (or (and .cse6 .cse7 (not .cse3)) (and .cse8 .cse7))) (or (not .cse6) (and .cse5 (= ~pumpRunning~0 1))) (or (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 .cse4) (or .cse0 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3 .cse4)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (< 1 |old(~waterLevel~0)|)) (.cse4 (not .cse8)) (.cse6 (= |old(~pumpRunning~0)| 1)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (< 0 ~switchedOnBeforeTS~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse0 .cse4 .cse1 .cse2 .cse3) (or .cse4 (and (= ~pumpRunning~0 0) .cse5)) (let ((.cse7 (<= |old(~waterLevel~0)| 2))) (or (and .cse6 .cse7 (not .cse3)) (and .cse8 .cse7))) (or (not .cse6) (and .cse5 (= ~pumpRunning~0 1))) (or (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse3))))) [2024-11-22 02:07:48,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:48,494 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2)))))) [2024-11-22 02:07:48,496 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:48,502 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) (<= |old(~waterLevel~0)| 2)) (and .cse0 (<= |old(~waterLevel~0)| 1) (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2) .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 2)) (and .cse0 (<= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2))) [2024-11-22 02:07:48,509 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2)))))) [2024-11-22 02:07:48,510 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:48,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:07:48 BoogieIcfgContainer [2024-11-22 02:07:48,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:07:48,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:07:48,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:07:48,515 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:07:48,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:11" (3/4) ... [2024-11-22 02:07:48,521 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-22 02:07:48,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-22 02:07:48,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-22 02:07:48,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:07:48,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:07:48,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:07:48,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:07:48,621 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:07:48,622 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:07:48,622 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:07:48,622 INFO L158 Benchmark]: Toolchain (without parser) took 38145.49ms. Allocated memory was 169.9MB in the beginning and 755.0MB in the end (delta: 585.1MB). Free memory was 91.4MB in the beginning and 641.2MB in the end (delta: -549.8MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,623 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:07:48,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.84ms. Allocated memory is still 169.9MB. Free memory was 91.2MB in the beginning and 136.2MB in the end (delta: -45.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.11ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,624 INFO L158 Benchmark]: Boogie Preprocessor took 31.02ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 130.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,624 INFO L158 Benchmark]: RCFGBuilder took 451.68ms. Allocated memory is still 169.9MB. Free memory was 130.9MB in the beginning and 122.2MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,625 INFO L158 Benchmark]: TraceAbstraction took 37099.30ms. Allocated memory was 169.9MB in the beginning and 755.0MB in the end (delta: 585.1MB). Free memory was 121.1MB in the beginning and 649.6MB in the end (delta: -528.4MB). Peak memory consumption was 457.2MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,625 INFO L158 Benchmark]: Witness Printer took 107.04ms. Allocated memory is still 755.0MB. Free memory was 649.6MB in the beginning and 641.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:07:48,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.84ms. Allocated memory is still 169.9MB. Free memory was 91.2MB in the beginning and 136.2MB in the end (delta: -45.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.11ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.02ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 130.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.68ms. Allocated memory is still 169.9MB. Free memory was 130.9MB in the beginning and 122.2MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 37099.30ms. Allocated memory was 169.9MB in the beginning and 755.0MB in the end (delta: 585.1MB). Free memory was 121.1MB in the beginning and 649.6MB in the end (delta: -528.4MB). Peak memory consumption was 457.2MB. Max. memory is 16.1GB. * Witness Printer took 107.04ms. Allocated memory is still 755.0MB. Free memory was 649.6MB in the beginning and 641.2MB 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] - GenericResultAtLocation [Line: 176]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] - GenericResultAtLocation [Line: 450]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] - GenericResultAtLocation [Line: 697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 658]: 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, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3441 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3397 mSDsluCounter, 10441 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8238 mSDsCounter, 1225 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6839 IncrementalHoareTripleChecker+Invalid, 8064 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1225 mSolverCounterUnsat, 2203 mSDtfsCounter, 6839 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2429 GetRequests, 2174 SyntacticMatches, 26 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1944 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2521occurred in iteration=13, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 885 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 2666 NumberOfCodeBlocks, 2666 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3737 ConstructedInterpolants, 0 QuantifiedInterpolants, 8160 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3113 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 3148/3810 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: 565]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 0))) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) - ProcedureContractResult [Line: 325]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1)) Ensures: (((((pumpRunning == 0) && (\old(pumpRunning) == 1)) && (waterLevel <= 2)) && (0 != systemActive)) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 215]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 477]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((methaneLevelCritical == 0) || (\old(methaneLevelCritical) == 0)) && (((((\old(methaneLevelCritical) == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel <= 2)))) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical != 0))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 555]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 188]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((((((((((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (methaneLevelCritical == 0)) || (((pumpRunning == 0) && (\old(waterLevel) == ((long long) waterLevel + 1))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) != 1)) || (0 == systemActive)) || (2 < \old(waterLevel))) && (((\old(pumpRunning) == 1) && (\old(waterLevel) <= 2)) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)))) && (((((((\old(waterLevel) == ((long long) waterLevel + 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (\old(waterLevel) == ((long long) waterLevel + 1))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) != 1)) || (((((waterLevel <= 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && (((((\old(switchedOnBeforeTS) < 1) || (0 < \old(waterLevel))) || (\old(pumpRunning) != 1)) || (((((waterLevel <= 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && ((((((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (methaneLevelCritical == 0)) || (0 < \old(waterLevel))) || (\old(pumpRunning) != 1)) || (0 == systemActive))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical == 0))) && (((((1 < \old(waterLevel)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical != 0)) || (0 == systemActive))) && ((((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (methaneLevelCritical != 0)) || (\old(waterLevel) != 2)) || (0 == systemActive)) || ((2 == waterLevel) && (pumpRunning == 1)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 223]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: (((((((\old(pumpRunning) != 1) || (pumpRunning == 1)) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) && ((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || ((((waterLevel <= 1) && (\old(pumpRunning) == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 465]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((2 == waterLevel) && (methaneLevelCritical == 0)) && (0 != systemActive)) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel <= 2))) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && ((((pumpRunning == 0) && (\old(waterLevel) <= 2)) || (((((methaneLevelCritical == 0) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((methaneLevelCritical == 0) && (0 != systemActive)) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 249]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: ((((((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (\old(pumpRunning) == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 344]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((pumpRunning == 0) && (waterLevel <= 2)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((pumpRunning == \result) && (((pumpRunning == 0) && (waterLevel <= 2)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 333]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || ((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((methaneLevelCritical == \result) && ((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || ((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:07:48,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE