./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.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_spec5_product36.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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:21:38,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:21:38,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:21:38,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:21:38,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:21:38,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:21:38,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:21:38,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:21:38,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:21:38,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:21:38,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:21:38,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:21:38,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:21:38,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:21:38,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:21:38,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:21:38,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:21:38,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:21:38,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:21:38,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:21:38,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:21:38,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:21:38,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:21:38,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:21:38,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:21:38,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:21:38,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:21:38,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:21:38,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:21:38,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:21:38,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:21:38,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:21:38,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:38,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:21:38,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:21:38,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:21:38,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:21:38,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:21:38,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:21:38,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:21:38,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:21:38,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:21:38,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2024-11-18 14:21:38,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:21:38,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:21:38,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:21:38,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:21:38,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:21:38,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2024-11-18 14:21:40,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:21:40,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:21:40,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2024-11-18 14:21:40,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ad6bdef/bbc04e7116504a13afcdfa06fe0f3ece/FLAG04c73ac4b [2024-11-18 14:21:40,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ad6bdef/bbc04e7116504a13afcdfa06fe0f3ece [2024-11-18 14:21:40,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:21:40,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:21:40,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:40,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:21:40,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:21:40,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f788ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40, skipping insertion in model container [2024-11-18 14:21:40,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:21:40,607 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2024-11-18 14:21:40,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:40,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:21:40,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-18 14:21:40,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2024-11-18 14:21:40,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-11-18 14:21:40,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [287] [2024-11-18 14:21:40,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [653] [2024-11-18 14:21:40,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [725] [2024-11-18 14:21:40,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [823] [2024-11-18 14:21:40,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [873] [2024-11-18 14:21:40,767 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2024-11-18 14:21:40,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:40,880 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:21:40,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40 WrapperNode [2024-11-18 14:21:40,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:40,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:40,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:21:40,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:21:40,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,928 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 185 [2024-11-18 14:21:40,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:40,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:21:40,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:21:40,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:21:40,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,979 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 14:21:40,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:40,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:41,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:21:41,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:21:41,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:21:41,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:21:41,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (1/1) ... [2024-11-18 14:21:41,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:41,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:41,071 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 14:21:41,076 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 14:21:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:21:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:21:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:21:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:21:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:21:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:21:41,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:21:41,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:21:41,444 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-18 14:21:41,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:21:41,459 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:21:41,459 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:21:41,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:41 BoogieIcfgContainer [2024-11-18 14:21:41,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:21:41,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:21:41,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:21:41,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:21:41,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:21:40" (1/3) ... [2024-11-18 14:21:41,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481fe24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:41, skipping insertion in model container [2024-11-18 14:21:41,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:40" (2/3) ... [2024-11-18 14:21:41,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481fe24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:41, skipping insertion in model container [2024-11-18 14:21:41,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:41" (3/3) ... [2024-11-18 14:21:41,466 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2024-11-18 14:21:41,479 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:21:41,479 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:21:41,529 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:21:41,537 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;@55ace92a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:21:41,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:21:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 14:21:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:21:41,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:41,556 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:41,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:41,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1797931529, now seen corresponding path program 1 times [2024-11-18 14:21:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:41,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566255720] [2024-11-18 14:21:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:41,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:41,809 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 14:21:41,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566255720] [2024-11-18 14:21:41,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566255720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:41,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:41,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412024412] [2024-11-18 14:21:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:41,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:21:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:41,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:21:41,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:41,839 INFO L87 Difference]: Start difference. First operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:41,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:41,866 INFO L93 Difference]: Finished difference Result 161 states and 218 transitions. [2024-11-18 14:21:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:21:41,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-18 14:21:41,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:41,875 INFO L225 Difference]: With dead ends: 161 [2024-11-18 14:21:41,875 INFO L226 Difference]: Without dead ends: 76 [2024-11-18 14:21:41,878 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 14:21:41,881 INFO L432 NwaCegarLoop]: 106 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, 106 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 14:21:41,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-18 14:21:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-18 14:21:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3) internal successors, (78), 65 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:21:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2024-11-18 14:21:41,916 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 32 [2024-11-18 14:21:41,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:41,917 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2024-11-18 14:21:41,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2024-11-18 14:21:41,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-18 14:21:41,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:41,920 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:41,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:21:41,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:41,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:41,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1521544977, now seen corresponding path program 1 times [2024-11-18 14:21:41,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:41,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030880539] [2024-11-18 14:21:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:41,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:42,069 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 14:21:42,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:42,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030880539] [2024-11-18 14:21:42,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030880539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:42,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:42,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335978981] [2024-11-18 14:21:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:42,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:42,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:42,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:42,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:42,076 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:42,098 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2024-11-18 14:21:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:42,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-18 14:21:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:42,100 INFO L225 Difference]: With dead ends: 112 [2024-11-18 14:21:42,100 INFO L226 Difference]: Without dead ends: 67 [2024-11-18 14:21:42,101 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 14:21:42,102 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 18 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 146 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 14:21:42,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-18 14:21:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-18 14:21:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 14:21:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2024-11-18 14:21:42,117 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 33 [2024-11-18 14:21:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:42,118 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2024-11-18 14:21:42,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2024-11-18 14:21:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 14:21:42,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:42,120 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:42,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:21:42,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:42,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1250979301, now seen corresponding path program 1 times [2024-11-18 14:21:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859644093] [2024-11-18 14:21:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:42,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:42,238 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 14:21:42,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:42,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859644093] [2024-11-18 14:21:42,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859644093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:42,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:42,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280294959] [2024-11-18 14:21:42,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:42,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:42,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:42,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:42,243 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:42,276 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2024-11-18 14:21:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-11-18 14:21:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:42,278 INFO L225 Difference]: With dead ends: 183 [2024-11-18 14:21:42,278 INFO L226 Difference]: Without dead ends: 124 [2024-11-18 14:21:42,279 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 14:21:42,281 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:42,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-18 14:21:42,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2024-11-18 14:21:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 103 states have internal predecessors, (126), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-18 14:21:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions. [2024-11-18 14:21:42,301 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 38 [2024-11-18 14:21:42,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:42,301 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions. [2024-11-18 14:21:42,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,301 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions. [2024-11-18 14:21:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:21:42,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:42,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:42,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:21:42,304 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:42,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash 177136733, now seen corresponding path program 1 times [2024-11-18 14:21:42,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:42,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879606202] [2024-11-18 14:21:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:42,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:21:42,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:42,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879606202] [2024-11-18 14:21:42,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879606202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:42,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:42,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:21:42,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709992566] [2024-11-18 14:21:42,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:42,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:42,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:42,474 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:42,635 INFO L93 Difference]: Finished difference Result 312 states and 412 transitions. [2024-11-18 14:21:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:21:42,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-18 14:21:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:42,638 INFO L225 Difference]: With dead ends: 312 [2024-11-18 14:21:42,638 INFO L226 Difference]: Without dead ends: 201 [2024-11-18 14:21:42,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:21:42,640 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 64 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:42,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 357 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:42,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-18 14:21:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-18 14:21:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 156 states have (on average 1.3012820512820513) internal successors, (203), 167 states have internal predecessors, (203), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 255 transitions. [2024-11-18 14:21:42,668 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 255 transitions. Word has length 41 [2024-11-18 14:21:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:42,668 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 255 transitions. [2024-11-18 14:21:42,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 255 transitions. [2024-11-18 14:21:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-18 14:21:42,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:42,671 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] [2024-11-18 14:21:42,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:21:42,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:42,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash -413128686, now seen corresponding path program 1 times [2024-11-18 14:21:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:42,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421839426] [2024-11-18 14:21:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:42,780 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 14:21:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:42,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421839426] [2024-11-18 14:21:42,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421839426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:42,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:42,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:42,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103860626] [2024-11-18 14:21:42,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:42,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:42,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:42,786 INFO L87 Difference]: Start difference. First operand 201 states and 255 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:42,826 INFO L93 Difference]: Finished difference Result 400 states and 514 transitions. [2024-11-18 14:21:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:42,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-18 14:21:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:42,829 INFO L225 Difference]: With dead ends: 400 [2024-11-18 14:21:42,830 INFO L226 Difference]: Without dead ends: 207 [2024-11-18 14:21:42,831 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 14:21:42,832 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:42,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-18 14:21:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-18 14:21:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.2901234567901234) internal successors, (209), 173 states have internal predecessors, (209), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 261 transitions. [2024-11-18 14:21:42,853 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 261 transitions. Word has length 47 [2024-11-18 14:21:42,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:42,853 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 261 transitions. [2024-11-18 14:21:42,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 261 transitions. [2024-11-18 14:21:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-18 14:21:42,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:42,856 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] [2024-11-18 14:21:42,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:21:42,856 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:42,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2001476588, now seen corresponding path program 1 times [2024-11-18 14:21:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557931363] [2024-11-18 14:21:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:42,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:42,949 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 14:21:42,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:42,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557931363] [2024-11-18 14:21:42,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557931363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:42,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:42,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:21:42,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417662217] [2024-11-18 14:21:42,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:42,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:21:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:21:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:42,955 INFO L87 Difference]: Start difference. First operand 207 states and 261 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:42,985 INFO L93 Difference]: Finished difference Result 410 states and 528 transitions. [2024-11-18 14:21:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:21:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-18 14:21:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:42,988 INFO L225 Difference]: With dead ends: 410 [2024-11-18 14:21:42,990 INFO L226 Difference]: Without dead ends: 211 [2024-11-18 14:21:42,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:42,992 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:42,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-18 14:21:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-18 14:21:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.283132530120482) internal successors, (213), 177 states have internal predecessors, (213), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 265 transitions. [2024-11-18 14:21:43,018 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 265 transitions. Word has length 47 [2024-11-18 14:21:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:43,019 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 265 transitions. [2024-11-18 14:21:43,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 265 transitions. [2024-11-18 14:21:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-18 14:21:43,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:43,021 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] [2024-11-18 14:21:43,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:21:43,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:43,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash 604546966, now seen corresponding path program 1 times [2024-11-18 14:21:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612747241] [2024-11-18 14:21:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:43,120 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 14:21:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612747241] [2024-11-18 14:21:43,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612747241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:43,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:43,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:43,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957756652] [2024-11-18 14:21:43,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:43,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:43,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:43,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:43,125 INFO L87 Difference]: Start difference. First operand 211 states and 265 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:43,159 INFO L93 Difference]: Finished difference Result 508 states and 643 transitions. [2024-11-18 14:21:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:43,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-18 14:21:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:43,162 INFO L225 Difference]: With dead ends: 508 [2024-11-18 14:21:43,163 INFO L226 Difference]: Without dead ends: 305 [2024-11-18 14:21:43,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:43,165 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:43,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 155 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:43,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-18 14:21:43,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-18 14:21:43,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 240 states have (on average 1.25) internal successors, (300), 253 states have internal predecessors, (300), 36 states have call successors, (36), 30 states have call predecessors, (36), 28 states have return successors, (40), 34 states have call predecessors, (40), 36 states have call successors, (40) [2024-11-18 14:21:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2024-11-18 14:21:43,193 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 47 [2024-11-18 14:21:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:43,194 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2024-11-18 14:21:43,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2024-11-18 14:21:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:21:43,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:43,200 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] [2024-11-18 14:21:43,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:21:43,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:43,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash -542316420, now seen corresponding path program 1 times [2024-11-18 14:21:43,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:43,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190073655] [2024-11-18 14:21:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:43,404 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 14:21:43,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190073655] [2024-11-18 14:21:43,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190073655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:43,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:43,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:21:43,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920387872] [2024-11-18 14:21:43,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:43,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:21:43,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:21:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:43,408 INFO L87 Difference]: Start difference. First operand 305 states and 376 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:21:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:43,754 INFO L93 Difference]: Finished difference Result 1024 states and 1311 transitions. [2024-11-18 14:21:43,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:21:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2024-11-18 14:21:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:43,762 INFO L225 Difference]: With dead ends: 1024 [2024-11-18 14:21:43,763 INFO L226 Difference]: Without dead ends: 821 [2024-11-18 14:21:43,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:21:43,766 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 283 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:43,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 602 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:21:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-18 14:21:43,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 771. [2024-11-18 14:21:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 610 states have (on average 1.2327868852459016) internal successors, (752), 647 states have internal predecessors, (752), 88 states have call successors, (88), 66 states have call predecessors, (88), 72 states have return successors, (108), 84 states have call predecessors, (108), 88 states have call successors, (108) [2024-11-18 14:21:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 948 transitions. [2024-11-18 14:21:43,834 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 948 transitions. Word has length 51 [2024-11-18 14:21:43,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:43,836 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 948 transitions. [2024-11-18 14:21:43,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:21:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 948 transitions. [2024-11-18 14:21:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:21:43,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:43,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-18 14:21:43,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:21:43,841 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:43,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:43,842 INFO L85 PathProgramCache]: Analyzing trace with hash 8311452, now seen corresponding path program 1 times [2024-11-18 14:21:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:43,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506175713] [2024-11-18 14:21:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:43,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:21:43,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:43,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506175713] [2024-11-18 14:21:43,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506175713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:43,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:43,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:21:43,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105760612] [2024-11-18 14:21:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:43,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:21:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:21:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:43,909 INFO L87 Difference]: Start difference. First operand 771 states and 948 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:21:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:43,996 INFO L93 Difference]: Finished difference Result 1311 states and 1611 transitions. [2024-11-18 14:21:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:21:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 81 [2024-11-18 14:21:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:44,000 INFO L225 Difference]: With dead ends: 1311 [2024-11-18 14:21:44,001 INFO L226 Difference]: Without dead ends: 548 [2024-11-18 14:21:44,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:44,003 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 109 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:44,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 227 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:44,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-18 14:21:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 540. [2024-11-18 14:21:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 452 states have internal predecessors, (519), 62 states have call successors, (62), 48 states have call predecessors, (62), 51 states have return successors, (72), 59 states have call predecessors, (72), 62 states have call successors, (72) [2024-11-18 14:21:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 653 transitions. [2024-11-18 14:21:44,058 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 653 transitions. Word has length 81 [2024-11-18 14:21:44,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:44,059 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 653 transitions. [2024-11-18 14:21:44,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:21:44,059 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 653 transitions. [2024-11-18 14:21:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 14:21:44,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:44,061 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:44,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:21:44,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:44,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1954817075, now seen corresponding path program 1 times [2024-11-18 14:21:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:44,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709294402] [2024-11-18 14:21:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:21:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709294402] [2024-11-18 14:21:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709294402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558836948] [2024-11-18 14:21:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:44,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:44,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:44,211 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 14:21:44,213 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 14:21:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:44,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:21:44,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:44,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:21:44,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558836948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:44,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:44,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-18 14:21:44,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9065049] [2024-11-18 14:21:44,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:44,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:21:44,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:21:44,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:21:44,743 INFO L87 Difference]: Start difference. First operand 540 states and 653 transitions. Second operand has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (16), 4 states have call predecessors, (16), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-18 14:21:45,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:45,273 INFO L93 Difference]: Finished difference Result 1111 states and 1378 transitions. [2024-11-18 14:21:45,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 14:21:45,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (16), 4 states have call predecessors, (16), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 83 [2024-11-18 14:21:45,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:45,277 INFO L225 Difference]: With dead ends: 1111 [2024-11-18 14:21:45,277 INFO L226 Difference]: Without dead ends: 658 [2024-11-18 14:21:45,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 162 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2024-11-18 14:21:45,280 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 354 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:45,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 900 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:21:45,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-18 14:21:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 580. [2024-11-18 14:21:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 449 states have (on average 1.2026726057906458) internal successors, (540), 479 states have internal predecessors, (540), 71 states have call successors, (71), 60 states have call predecessors, (71), 59 states have return successors, (77), 62 states have call predecessors, (77), 71 states have call successors, (77) [2024-11-18 14:21:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 688 transitions. [2024-11-18 14:21:45,326 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 688 transitions. Word has length 83 [2024-11-18 14:21:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:45,327 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 688 transitions. [2024-11-18 14:21:45,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (16), 4 states have call predecessors, (16), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-18 14:21:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 688 transitions. [2024-11-18 14:21:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-18 14:21:45,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:45,334 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-18 14:21:45,353 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 14:21:45,535 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 14:21:45,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:45,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash 57448184, now seen corresponding path program 1 times [2024-11-18 14:21:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:45,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406230090] [2024-11-18 14:21:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-18 14:21:45,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:45,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406230090] [2024-11-18 14:21:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406230090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884659005] [2024-11-18 14:21:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:45,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:45,720 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 14:21:45,722 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 14:21:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:45,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:21:45,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 177 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-18 14:21:46,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 114 proven. 61 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-18 14:21:46,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884659005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:46,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:46,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 22 [2024-11-18 14:21:46,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469716107] [2024-11-18 14:21:46,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:46,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:21:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:21:46,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:21:46,569 INFO L87 Difference]: Start difference. First operand 580 states and 688 transitions. Second operand has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 9 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-18 14:21:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:47,172 INFO L93 Difference]: Finished difference Result 1348 states and 1641 transitions. [2024-11-18 14:21:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 14:21:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 9 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) Word has length 178 [2024-11-18 14:21:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:47,175 INFO L225 Difference]: With dead ends: 1348 [2024-11-18 14:21:47,175 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:21:47,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 343 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=915, Unknown=0, NotChecked=0, Total=1190 [2024-11-18 14:21:47,179 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 252 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:47,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1000 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:21:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:21:47,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:21:47,180 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 14:21:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:21:47,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2024-11-18 14:21:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:47,181 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:21:47,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 9 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-18 14:21:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:21:47,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:21:47,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:21:47,203 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 14:21:47,385 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 14:21:47,388 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:47,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:21:51,979 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:21:52,037 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse5 (= |old(~pumpRunning~0)| 1)) (.cse7 (= 0 ~systemActive~0))) (let ((.cse0 (= |old(~waterLevel~0)| 2)) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse3 (not .cse7)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse11 (not .cse5)) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse3) (let ((.cse4 (= 1 ~systemActive~0)) (.cse8 (<= |old(~waterLevel~0)| 1))) (or (and .cse4 .cse5 .cse0) (and .cse6 .cse7 .cse0) (and .cse6 .cse7 .cse8) (and .cse4 .cse6 .cse0) (and .cse4 .cse5 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse8) (and .cse4 .cse6 .cse8))) (or (not .cse6) (and (= ~pumpRunning~0 0) .cse9 .cse10)) (or .cse11 (= ~pumpRunning~0 1)) (or (not (= ~switchedOnBeforeTS~0 0)) .cse3 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 .cse11 (and .cse9 .cse10 .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse4 (= |old(~pumpRunning~0)| 1)) (.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= |old(~waterLevel~0)| 2)) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse2 (not .cse6)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse10 (not .cse4)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or (not (= |old(~waterLevel~0)| 1)) .cse1 (< 0 ~switchedOnBeforeTS~0) .cse2) (let ((.cse3 (= 1 ~systemActive~0)) (.cse7 (<= |old(~waterLevel~0)| 1))) (or (and .cse3 .cse4 .cse0) (and .cse5 .cse6 .cse0) (and .cse5 .cse6 .cse7) (and .cse3 .cse5 .cse0) (and .cse3 .cse4 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse7) (and .cse3 .cse5 .cse7))) (or (not .cse5) (and (= ~pumpRunning~0 0) .cse8 .cse9)) (or .cse10 (= ~pumpRunning~0 1)) (or (not (= ~switchedOnBeforeTS~0 0)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 .cse10 (and .cse8 .cse9 (<= 1 ~switchedOnBeforeTS~0))))))) [2024-11-18 14:21:52,051 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:52,059 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse1 (= 0 ~systemActive~0)) (.cse2 (= |old(~waterLevel~0)| 2)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (<= |old(~waterLevel~0)| 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse0 .cse1 .cse4) (and .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse3 .cse2 .cse5) (and .cse0 .cse3 .cse4)))) Eliminated clause: (let ((.cse2 (= 0 ~systemActive~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse1 (<= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 2 ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse4) (and .cse0 .cse3 .cse4))) [2024-11-18 14:21:52,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:21:52 BoogieIcfgContainer [2024-11-18 14:21:52,081 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:21:52,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:21:52,082 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:21:52,083 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:21:52,083 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:41" (3/4) ... [2024-11-18 14:21:52,086 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:21:52,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:21:52,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:21:52,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:21:52,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:21:52,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:21:52,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-18 14:21:52,096 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-18 14:21:52,097 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:21:52,097 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:21:52,097 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:52,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:52,222 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:21:52,223 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:21:52,223 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:21:52,223 INFO L158 Benchmark]: Toolchain (without parser) took 11858.71ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 118.6MB in the beginning and 87.3MB in the end (delta: 31.3MB). Peak memory consumption was 108.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,224 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:21:52,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.67ms. Allocated memory is still 169.9MB. Free memory was 118.6MB in the beginning and 97.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.01ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 95.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,224 INFO L158 Benchmark]: Boogie Preprocessor took 72.20ms. Allocated memory is still 169.9MB. Free memory was 95.0MB in the beginning and 138.0MB in the end (delta: -43.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,224 INFO L158 Benchmark]: RCFGBuilder took 457.58ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 119.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,225 INFO L158 Benchmark]: TraceAbstraction took 10619.16ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 118.1MB in the beginning and 94.7MB in the end (delta: 23.4MB). Peak memory consumption was 128.8MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,225 INFO L158 Benchmark]: Witness Printer took 141.78ms. Allocated memory is still 247.5MB. Free memory was 94.7MB in the beginning and 87.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:52,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.67ms. Allocated memory is still 169.9MB. Free memory was 118.6MB in the beginning and 97.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.01ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 95.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.20ms. Allocated memory is still 169.9MB. Free memory was 95.0MB in the beginning and 138.0MB in the end (delta: -43.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 457.58ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 119.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10619.16ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 118.1MB in the beginning and 94.7MB in the end (delta: 23.4MB). Peak memory consumption was 128.8MB. Max. memory is 16.1GB. * Witness Printer took 141.78ms. Allocated memory is still 247.5MB. Free memory was 94.7MB in the beginning and 87.3MB in the end (delta: 7.3MB). 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,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 287]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [287] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [653] - GenericResultAtLocation [Line: 725]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [725] - GenericResultAtLocation [Line: 823]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [823] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [873] - 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: 92]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1195 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1177 mSDsluCounter, 4228 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3070 mSDsCounter, 272 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1079 IncrementalHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 272 mSolverCounterUnsat, 1158 mSDtfsCounter, 1079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 624 GetRequests, 527 SyntacticMatches, 7 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred in iteration=8, InterpolantAutomatonStates: 84, 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, 11 MinimizatonAttempts, 141 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 939 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 2375 SizeOfPredicates, 2 NumberOfNonLiveVariables, 806 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 864/961 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: 666]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 == systemActive)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 737]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 140]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 900]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 727]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 113]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((((((1 == systemActive) && (\old(pumpRunning) == 1)) && (\old(waterLevel) == 2)) || ((\old(pumpRunning) == 0) && (\old(waterLevel) == 2))) || (((\old(pumpRunning) == 0) && (0 == systemActive)) && (\old(waterLevel) <= 1))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 1))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 1))) && ((((pumpRunning == 0) && (2 == waterLevel)) || (\old(waterLevel) != 2)) || (0 != systemActive))) && (((\old(pumpRunning) != 1) || (\old(waterLevel) != 2)) || (waterLevel == 1))) && (((((\old(pumpRunning) != 0) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (\old(waterLevel) != 2)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || (0 == systemActive))) && ((((((\old(waterLevel) != 1) && (waterLevel <= \old(waterLevel))) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((((long long) waterLevel + 1) <= \old(waterLevel)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (\old(pumpRunning) != 1))) && (((1 < \old(waterLevel)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel)))) && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 888]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((((pumpRunning == 0) && (waterLevel <= 1)) && (0 == systemActive)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (0 == systemActive))) || ((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && ((((((((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) == 2)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 2))) || (((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) <= 1))) || ((((1 == systemActive) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((1 == systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 1)))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 200]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((waterLevel <= 1) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && ((pumpRunning != 0) || (\result == 0))) && ((\result == 1) || (pumpRunning != 1))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:21:52,263 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