./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:18:28,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:18:28,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:18:28,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:18:28,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:18:28,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:18:28,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:18:28,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:18:28,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:18:28,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:18:28,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:18:28,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:18:28,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:18:28,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:18:28,492 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:18:28,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:18:28,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:18:28,495 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:18:28,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:18:28,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:18:28,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:18:28,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:18:28,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:18:28,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:18:28,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:18:28,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:18:28,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:18:28,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:18:28,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:18:28,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:18:28,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:18:28,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:18:28,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:28,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:18:28,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:18:28,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:18:28,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:18:28,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:18:28,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:18:28,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:18:28,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:18:28,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:18:28,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2024-11-18 14:18:28,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:18:28,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:18:28,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:18:28,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:18:28,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:18:28,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-11-18 14:18:29,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:18:30,157 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:18:30,157 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-11-18 14:18:30,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90925fbb/767071638dd34c1380ba2cea265bf067/FLAG03c8562ca [2024-11-18 14:18:30,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90925fbb/767071638dd34c1380ba2cea265bf067 [2024-11-18 14:18:30,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:18:30,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:18:30,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:30,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:18:30,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:18:30,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeb577a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30, skipping insertion in model container [2024-11-18 14:18:30,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:18:30,421 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_spec1_product61.cil.c[3777,3790] [2024-11-18 14:18:30,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:30,515 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:18:30,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-18 14:18:30,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-18 14:18:30,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2024-11-18 14:18:30,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] [2024-11-18 14:18:30,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] [2024-11-18 14:18:30,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] [2024-11-18 14:18:30,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] [2024-11-18 14:18:30,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] [2024-11-18 14:18:30,535 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_spec1_product61.cil.c[3777,3790] [2024-11-18 14:18:30,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:30,610 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:18:30,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30 WrapperNode [2024-11-18 14:18:30,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:30,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:30,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:18:30,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:18:30,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,650 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 215 [2024-11-18 14:18:30,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:30,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:18:30,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:18:30,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:18:30,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,677 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:18:30,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:18:30,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:18:30,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:18:30,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:18:30,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (1/1) ... [2024-11-18 14:18:30,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:30,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:18:30,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:18:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:18:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:18:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:18:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:18:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:18:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:18:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:18:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-18 14:18:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-18 14:18:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:18:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:18:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-18 14:18:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-18 14:18:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:18:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:18:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:18:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:18:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:18:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:18:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:18:30,834 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:18:30,836 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:18:31,090 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-18 14:18:31,090 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:18:31,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:18:31,106 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:18:31,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:31 BoogieIcfgContainer [2024-11-18 14:18:31,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:18:31,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:18:31,109 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:18:31,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:18:31,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:18:30" (1/3) ... [2024-11-18 14:18:31,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b514a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:31, skipping insertion in model container [2024-11-18 14:18:31,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:30" (2/3) ... [2024-11-18 14:18:31,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b514a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:31, skipping insertion in model container [2024-11-18 14:18:31,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:31" (3/3) ... [2024-11-18 14:18:31,114 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2024-11-18 14:18:31,128 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:18:31,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:18:31,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:18:31,183 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;@461204a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:18:31,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:18:31,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-18 14:18:31,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 14:18:31,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:31,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1854857434, now seen corresponding path program 1 times [2024-11-18 14:18:31,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990794785] [2024-11-18 14:18:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990794785] [2024-11-18 14:18:31,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990794785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:18:31,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98305193] [2024-11-18 14:18:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:18:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:18:31,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:18:31,405 INFO L87 Difference]: Start difference. First operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,428 INFO L93 Difference]: Finished difference Result 208 states and 281 transitions. [2024-11-18 14:18:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:18:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-18 14:18:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:31,439 INFO L225 Difference]: With dead ends: 208 [2024-11-18 14:18:31,439 INFO L226 Difference]: Without dead ends: 99 [2024-11-18 14:18:31,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:18:31,446 INFO L432 NwaCegarLoop]: 137 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, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:31,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:31,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-18 14:18:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-18 14:18:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 14:18:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2024-11-18 14:18:31,493 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 23 [2024-11-18 14:18:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:31,493 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2024-11-18 14:18:31,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2024-11-18 14:18:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 14:18:31,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:31,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:18:31,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1310134844, now seen corresponding path program 1 times [2024-11-18 14:18:31,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181963945] [2024-11-18 14:18:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181963945] [2024-11-18 14:18:31,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181963945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:31,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956891906] [2024-11-18 14:18:31,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:31,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:31,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:31,576 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,596 INFO L93 Difference]: Finished difference Result 164 states and 212 transitions. [2024-11-18 14:18:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-18 14:18:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:31,598 INFO L225 Difference]: With dead ends: 164 [2024-11-18 14:18:31,599 INFO L226 Difference]: Without dead ends: 90 [2024-11-18 14:18:31,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:31,601 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 12 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:31,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-18 14:18:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-18 14:18:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-18 14:18:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2024-11-18 14:18:31,615 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 24 [2024-11-18 14:18:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:31,616 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2024-11-18 14:18:31,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2024-11-18 14:18:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 14:18:31,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:31,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:18:31,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2011182624, now seen corresponding path program 1 times [2024-11-18 14:18:31,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299100620] [2024-11-18 14:18:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299100620] [2024-11-18 14:18:31,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299100620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:31,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303282558] [2024-11-18 14:18:31,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:31,727 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,744 INFO L93 Difference]: Finished difference Result 173 states and 226 transitions. [2024-11-18 14:18:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:31,745 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-18 14:18:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:31,746 INFO L225 Difference]: With dead ends: 173 [2024-11-18 14:18:31,746 INFO L226 Difference]: Without dead ends: 90 [2024-11-18 14:18:31,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:31,747 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:31,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-18 14:18:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-18 14:18:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-18 14:18:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2024-11-18 14:18:31,755 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 28 [2024-11-18 14:18:31,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:31,755 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-11-18 14:18:31,755 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2024-11-18 14:18:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-18 14:18:31,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:31,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:18:31,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1454995953, now seen corresponding path program 1 times [2024-11-18 14:18:31,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369232062] [2024-11-18 14:18:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369232062] [2024-11-18 14:18:31,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369232062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717926726] [2024-11-18 14:18:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:31,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:31,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:31,855 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 14:18:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,114 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2024-11-18 14:18:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:32,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-11-18 14:18:32,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,116 INFO L225 Difference]: With dead ends: 258 [2024-11-18 14:18:32,116 INFO L226 Difference]: Without dead ends: 175 [2024-11-18 14:18:32,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:32,118 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 209 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 288 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-18 14:18:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2024-11-18 14:18:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 132 states have internal predecessors, (152), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-18 14:18:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2024-11-18 14:18:32,138 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 43 [2024-11-18 14:18:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,138 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2024-11-18 14:18:32,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 14:18:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2024-11-18 14:18:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-18 14:18:32,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:18:32,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash 541296903, now seen corresponding path program 1 times [2024-11-18 14:18:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629892362] [2024-11-18 14:18:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:32,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629892362] [2024-11-18 14:18:32,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629892362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:18:32,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574407474] [2024-11-18 14:18:32,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:32,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:32,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:32,259 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,479 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2024-11-18 14:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:18:32,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-18 14:18:32,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,482 INFO L225 Difference]: With dead ends: 173 [2024-11-18 14:18:32,482 INFO L226 Difference]: Without dead ends: 171 [2024-11-18 14:18:32,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:18:32,483 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 144 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 363 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-18 14:18:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2024-11-18 14:18:32,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 132 states have internal predecessors, (150), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-18 14:18:32,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2024-11-18 14:18:32,497 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 49 [2024-11-18 14:18:32,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,497 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2024-11-18 14:18:32,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:32,499 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2024-11-18 14:18:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:18:32,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,500 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] [2024-11-18 14:18:32,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:18:32,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash -543497229, now seen corresponding path program 1 times [2024-11-18 14:18:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376335136] [2024-11-18 14:18:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376335136] [2024-11-18 14:18:32,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376335136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:32,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432078943] [2024-11-18 14:18:32,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:32,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:32,617 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-18 14:18:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,642 INFO L93 Difference]: Finished difference Result 334 states and 407 transitions. [2024-11-18 14:18:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 59 [2024-11-18 14:18:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,644 INFO L225 Difference]: With dead ends: 334 [2024-11-18 14:18:32,644 INFO L226 Difference]: Without dead ends: 172 [2024-11-18 14:18:32,645 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 [2024-11-18 14:18:32,645 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 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 [2024-11-18 14:18:32,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-18 14:18:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-18 14:18:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 135 states have internal predecessors, (153), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-18 14:18:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2024-11-18 14:18:32,666 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 59 [2024-11-18 14:18:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,670 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2024-11-18 14:18:32,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-18 14:18:32,670 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2024-11-18 14:18:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:18:32,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,672 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] [2024-11-18 14:18:32,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:18:32,673 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -268737615, now seen corresponding path program 1 times [2024-11-18 14:18:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968353403] [2024-11-18 14:18:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968353403] [2024-11-18 14:18:32,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968353403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:32,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199383511] [2024-11-18 14:18:32,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:32,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:32,751 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:18:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,787 INFO L93 Difference]: Finished difference Result 339 states and 412 transitions. [2024-11-18 14:18:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-18 14:18:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,788 INFO L225 Difference]: With dead ends: 339 [2024-11-18 14:18:32,789 INFO L226 Difference]: Without dead ends: 174 [2024-11-18 14:18:32,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:18:32,790 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 100 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 330 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-18 14:18:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-18 14:18:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2109375) internal successors, (155), 137 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-18 14:18:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2024-11-18 14:18:32,799 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 59 [2024-11-18 14:18:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,799 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2024-11-18 14:18:32,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:18:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2024-11-18 14:18:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:18:32,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,801 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] [2024-11-18 14:18:32,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:18:32,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1782246383, now seen corresponding path program 1 times [2024-11-18 14:18:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081512548] [2024-11-18 14:18:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081512548] [2024-11-18 14:18:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081512548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:18:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111484631] [2024-11-18 14:18:32,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:18:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:18:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:32,875 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-18 14:18:32,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,979 INFO L93 Difference]: Finished difference Result 526 states and 647 transitions. [2024-11-18 14:18:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:18:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 59 [2024-11-18 14:18:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,982 INFO L225 Difference]: With dead ends: 526 [2024-11-18 14:18:32,982 INFO L226 Difference]: Without dead ends: 359 [2024-11-18 14:18:32,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:32,983 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 140 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 378 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:32,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-18 14:18:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2024-11-18 14:18:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 258 states have (on average 1.2015503875968991) internal successors, (310), 274 states have internal predecessors, (310), 46 states have call successors, (46), 39 states have call predecessors, (46), 47 states have return successors, (70), 49 states have call predecessors, (70), 46 states have call successors, (70) [2024-11-18 14:18:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 426 transitions. [2024-11-18 14:18:33,012 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 426 transitions. Word has length 59 [2024-11-18 14:18:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:33,014 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 426 transitions. [2024-11-18 14:18:33,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-18 14:18:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 426 transitions. [2024-11-18 14:18:33,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 14:18:33,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:33,017 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] [2024-11-18 14:18:33,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:18:33,018 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1601702199, now seen corresponding path program 1 times [2024-11-18 14:18:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375241593] [2024-11-18 14:18:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:33,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:33,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:33,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375241593] [2024-11-18 14:18:33,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375241593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:33,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:18:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875366161] [2024-11-18 14:18:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:33,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:18:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:33,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:18:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:18:33,157 INFO L87 Difference]: Start difference. First operand 352 states and 426 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 14:18:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:33,395 INFO L93 Difference]: Finished difference Result 1004 states and 1262 transitions. [2024-11-18 14:18:33,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:18:33,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-11-18 14:18:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:33,399 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 14:18:33,399 INFO L226 Difference]: Without dead ends: 659 [2024-11-18 14:18:33,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:18:33,400 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 94 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:33,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 796 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-18 14:18:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-18 14:18:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 477 states have (on average 1.178197064989518) internal successors, (562), 506 states have internal predecessors, (562), 91 states have call successors, (91), 77 states have call predecessors, (91), 90 states have return successors, (144), 95 states have call predecessors, (144), 91 states have call successors, (144) [2024-11-18 14:18:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 797 transitions. [2024-11-18 14:18:33,443 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 797 transitions. Word has length 63 [2024-11-18 14:18:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:33,443 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 797 transitions. [2024-11-18 14:18:33,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 14:18:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 797 transitions. [2024-11-18 14:18:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 14:18:33,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:33,446 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:33,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:18:33,447 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:33,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:33,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1533769194, now seen corresponding path program 1 times [2024-11-18 14:18:33,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:33,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386657080] [2024-11-18 14:18:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:33,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:18:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:33,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386657080] [2024-11-18 14:18:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386657080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:33,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889033404] [2024-11-18 14:18:33,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:33,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:33,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:33,629 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) [2024-11-18 14:18:33,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:18:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:33,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:18:33,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 14:18:33,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:33,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889033404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:33,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:33,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-18 14:18:33,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135644288] [2024-11-18 14:18:33,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:33,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:18:33,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:33,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:18:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:18:33,937 INFO L87 Difference]: Start difference. First operand 659 states and 797 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:18:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:34,112 INFO L93 Difference]: Finished difference Result 1311 states and 1587 transitions. [2024-11-18 14:18:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:18:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2024-11-18 14:18:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:34,116 INFO L225 Difference]: With dead ends: 1311 [2024-11-18 14:18:34,116 INFO L226 Difference]: Without dead ends: 659 [2024-11-18 14:18:34,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:18:34,118 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 72 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:34,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 656 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:34,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-18 14:18:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-18 14:18:34,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 477 states have (on average 1.1656184486373165) internal successors, (556), 506 states have internal predecessors, (556), 91 states have call successors, (91), 77 states have call predecessors, (91), 90 states have return successors, (131), 95 states have call predecessors, (131), 91 states have call successors, (131) [2024-11-18 14:18:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 778 transitions. [2024-11-18 14:18:34,155 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 778 transitions. Word has length 129 [2024-11-18 14:18:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:34,155 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 778 transitions. [2024-11-18 14:18:34,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:18:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 778 transitions. [2024-11-18 14:18:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:18:34,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:34,158 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:34,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:18:34,358 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 [2024-11-18 14:18:34,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:34,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash 778425818, now seen corresponding path program 1 times [2024-11-18 14:18:34,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:34,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350008972] [2024-11-18 14:18:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:34,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:18:34,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350008972] [2024-11-18 14:18:34,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350008972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452970528] [2024-11-18 14:18:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:34,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:34,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:34,456 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) [2024-11-18 14:18:34,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:18:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:18:34,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:18:34,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:34,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452970528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:34,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:34,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-18 14:18:34,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104318618] [2024-11-18 14:18:34,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:34,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:34,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:34,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:34,628 INFO L87 Difference]: Start difference. First operand 659 states and 778 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:18:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:34,880 INFO L93 Difference]: Finished difference Result 1343 states and 1628 transitions. [2024-11-18 14:18:34,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:18:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-18 14:18:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:34,885 INFO L225 Difference]: With dead ends: 1343 [2024-11-18 14:18:34,885 INFO L226 Difference]: Without dead ends: 791 [2024-11-18 14:18:34,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:34,887 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 151 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:34,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 267 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:34,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-18 14:18:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 789. [2024-11-18 14:18:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 572 states have (on average 1.1695804195804196) internal successors, (669), 605 states have internal predecessors, (669), 110 states have call successors, (110), 96 states have call predecessors, (110), 106 states have return successors, (166), 112 states have call predecessors, (166), 110 states have call successors, (166) [2024-11-18 14:18:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 945 transitions. [2024-11-18 14:18:34,942 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 945 transitions. Word has length 125 [2024-11-18 14:18:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:34,942 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 945 transitions. [2024-11-18 14:18:34,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:18:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 945 transitions. [2024-11-18 14:18:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-18 14:18:34,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:34,945 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:34,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:18:35,145 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 [2024-11-18 14:18:35,146 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:35,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1570194048, now seen corresponding path program 1 times [2024-11-18 14:18:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:35,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169756686] [2024-11-18 14:18:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:18:35,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169756686] [2024-11-18 14:18:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169756686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399750214] [2024-11-18 14:18:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:35,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:35,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:35,284 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) [2024-11-18 14:18:35,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:18:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:35,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:18:35,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:18:35,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:35,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399750214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:35,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:35,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-18 14:18:35,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717138589] [2024-11-18 14:18:35,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:35,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:18:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:18:35,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:18:35,481 INFO L87 Difference]: Start difference. First operand 789 states and 945 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:18:35,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:35,599 INFO L93 Difference]: Finished difference Result 1371 states and 1664 transitions. [2024-11-18 14:18:35,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:18:35,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-18 14:18:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:35,601 INFO L225 Difference]: With dead ends: 1371 [2024-11-18 14:18:35,601 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:18:35,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:18:35,604 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 63 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:35,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 928 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:18:35,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:18:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:18:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:18:35,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2024-11-18 14:18:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:35,606 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:18:35,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:18:35,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:18:35,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:18:35,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:18:35,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:18:35,809 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 [2024-11-18 14:18:35,812 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:35,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:18:38,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:18:38,843 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1)))) Eliminated clause: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2024-11-18 14:18:38,856 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-11-18 14:18:38,859 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,863 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= |old(~waterLevel~0)| 1)) (.cse1 (= ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (or (not .cse1) .cse2) (<= |old(~waterLevel~0)| ~waterLevel~0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse2) .cse1))) Eliminated clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (exists ((|old(~waterLevel~0)| Int)) (let ((.cse2 (= ~waterLevel~0 1)) (.cse1 (= |old(~waterLevel~0)| 1))) (and (or (not (= ~pumpRunning~0 0)) (not .cse1) .cse2) (or (not .cse2) .cse1) (<= |old(~waterLevel~0)| ~waterLevel~0))))) [2024-11-18 14:18:38,869 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,875 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-18 14:18:38,888 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse0))) (or (not .cse1) (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse1 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse0))) (exists ((|old(~waterLevel~0)| Int)) (and (or (not .cse1) (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))))) [2024-11-18 14:18:38,892 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,893 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-18 14:18:38,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:18:38 BoogieIcfgContainer [2024-11-18 14:18:38,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:18:38,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:18:38,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:18:38,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:18:38,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:31" (3/4) ... [2024-11-18 14:18:38,930 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:18:38,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:38,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-18 14:18:38,940 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-18 14:18:38,941 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:18:38,942 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:18:38,942 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:38,942 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:39,040 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:18:39,040 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:18:39,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:18:39,041 INFO L158 Benchmark]: Toolchain (without parser) took 8857.22ms. Allocated memory was 123.7MB in the beginning and 302.0MB in the end (delta: 178.3MB). Free memory was 52.8MB in the beginning and 260.3MB in the end (delta: -207.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:18:39,041 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:18:39,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.21ms. Allocated memory was 123.7MB in the beginning and 209.7MB in the end (delta: 86.0MB). Free memory was 52.5MB in the beginning and 168.7MB in the end (delta: -116.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.55ms. Allocated memory is still 209.7MB. Free memory was 168.7MB in the beginning and 165.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,041 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 209.7MB. Free memory was 165.5MB in the beginning and 163.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,042 INFO L158 Benchmark]: RCFGBuilder took 419.79ms. Allocated memory is still 209.7MB. Free memory was 163.4MB in the beginning and 143.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,042 INFO L158 Benchmark]: TraceAbstraction took 7818.00ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 142.5MB in the beginning and 268.7MB in the end (delta: -126.3MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,042 INFO L158 Benchmark]: Witness Printer took 112.52ms. Allocated memory is still 302.0MB. Free memory was 268.7MB in the beginning and 260.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:18:39,043 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 123.7MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.21ms. Allocated memory was 123.7MB in the beginning and 209.7MB in the end (delta: 86.0MB). Free memory was 52.5MB in the beginning and 168.7MB in the end (delta: -116.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.55ms. Allocated memory is still 209.7MB. Free memory was 168.7MB in the beginning and 165.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 209.7MB. Free memory was 165.5MB in the beginning and 163.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.79ms. Allocated memory is still 209.7MB. Free memory was 163.4MB in the beginning and 143.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7818.00ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 142.5MB in the beginning and 268.7MB in the end (delta: -126.3MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. * Witness Printer took 112.52ms. Allocated memory is still 302.0MB. Free memory was 268.7MB in the beginning and 260.3MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] - GenericResultAtLocation [Line: 234]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] - GenericResultAtLocation [Line: 640]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] - 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: 203]: 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, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1112 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1083 mSDsluCounter, 4913 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3318 mSDsCounter, 166 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1211 IncrementalHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 166 mSolverCounterUnsat, 1595 mSDtfsCounter, 1211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=11, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1157 NumberOfCodeBlocks, 1157 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1142 ConstructedInterpolants, 0 QuantifiedInterpolants, 1924 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1129 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 293/324 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: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 473]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: (((pumpRunning == 0) && ((((\old(pumpRunning) != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((\old(pumpRunning) != 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 363]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 122]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 339]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((waterLevel != 1) || (\old(pumpRunning) != 0)) || (\old(waterLevel) == 1))) && ((((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0)) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || (\old(waterLevel) < ((long long) waterLevel + 1)))) && (((pumpRunning == 0) || (1 < waterLevel)) || ((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0)))) && (((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || (waterLevel == 1))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 237]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 134]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 371]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 110]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((waterLevel != 1) || (pumpRunning != 0)) || (\old(waterLevel) != 1))) && (\old(waterLevel) <= waterLevel)) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 397]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) == 0))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 481]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) && (\result == methaneLevelCritical)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:18:39,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE