./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product59.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_product59.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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:22:10,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:22:10,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:22:10,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:22:10,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:22:10,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:22:10,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:22:10,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:22:10,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:22:10,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:22:10,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:22:10,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:22:10,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:22:10,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:22:10,295 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:22:10,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:22:10,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:22:10,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:22:10,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:22:10,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:22:10,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:22:10,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:22:10,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:22:10,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:22:10,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:22:10,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:22:10,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:22:10,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:22:10,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:22:10,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:22:10,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:22:10,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:22:10,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:22:10,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:22:10,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:22:10,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:22:10,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:22:10,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:22:10,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:22:10,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:22:10,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:22:10,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:22:10,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2024-11-18 14:22:10,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:22:10,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:22:10,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:22:10,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:22:10,623 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:22:10,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-18 14:22:12,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:22:12,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:22:12,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-18 14:22:12,400 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a196c226/0ce33bceff96405b885fb29914b7663e/FLAG675688e72 [2024-11-18 14:22:12,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a196c226/0ce33bceff96405b885fb29914b7663e [2024-11-18 14:22:12,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:22:12,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:22:12,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:12,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:22:12,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:22:12,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:12" (1/1) ... [2024-11-18 14:22:12,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252865d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:12, skipping insertion in model container [2024-11-18 14:22:12,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:12" (1/1) ... [2024-11-18 14:22:12,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:22:13,138 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_product59.cil.c[17002,17015] [2024-11-18 14:22:13,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:13,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:22:13,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-18 14:22:13,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2024-11-18 14:22:13,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2024-11-18 14:22:13,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] [2024-11-18 14:22:13,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2024-11-18 14:22:13,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] [2024-11-18 14:22:13,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] [2024-11-18 14:22:13,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] [2024-11-18 14:22:13,304 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_product59.cil.c[17002,17015] [2024-11-18 14:22:13,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:13,350 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:22:13,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13 WrapperNode [2024-11-18 14:22:13,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:13,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:13,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:22:13,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:22:13,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,401 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 235 [2024-11-18 14:22:13,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:13,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:22:13,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:22:13,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:22:13,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,418 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,435 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 14:22:13,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:22:13,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:22:13,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:22:13,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:22:13,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (1/1) ... [2024-11-18 14:22:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:22:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:13,502 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 14:22:13,506 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 14:22:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:22:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:22:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:22:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:22:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:22:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:22:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:22:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:22:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:22:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-18 14:22:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-18 14:22:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:22:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:22:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:22:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:22:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:22:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:22:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:22:13,652 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:22:13,657 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:22:13,997 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-18 14:22:13,998 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:22:14,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:22:14,023 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:22:14,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:14 BoogieIcfgContainer [2024-11-18 14:22:14,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:22:14,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:22:14,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:22:14,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:22:14,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:22:12" (1/3) ... [2024-11-18 14:22:14,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e7f11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:14, skipping insertion in model container [2024-11-18 14:22:14,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:13" (2/3) ... [2024-11-18 14:22:14,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e7f11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:14, skipping insertion in model container [2024-11-18 14:22:14,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:14" (3/3) ... [2024-11-18 14:22:14,039 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2024-11-18 14:22:14,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:22:14,052 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:22:14,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:22:14,111 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;@4d926280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:22:14,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:22:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-18 14:22:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:22:14,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:14,124 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 14:22:14,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:14,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -483847655, now seen corresponding path program 1 times [2024-11-18 14:22:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:14,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313945376] [2024-11-18 14:22:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:14,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:14,333 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 14:22:14,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:14,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313945376] [2024-11-18 14:22:14,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313945376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:14,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:14,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:22:14,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772164390] [2024-11-18 14:22:14,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:14,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:22:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:14,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:22:14,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:22:14,374 INFO L87 Difference]: Start difference. First operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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 14:22:14,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:14,405 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-11-18 14:22:14,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:22:14,407 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 14:22:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:14,415 INFO L225 Difference]: With dead ends: 197 [2024-11-18 14:22:14,415 INFO L226 Difference]: Without dead ends: 94 [2024-11-18 14:22:14,419 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 14:22:14,422 INFO L432 NwaCegarLoop]: 130 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, 130 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 14:22:14,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-18 14:22:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-18 14:22:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 80 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 14:22:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-18 14:22:14,465 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-11-18 14:22:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:14,466 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-18 14:22:14,466 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 14:22:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-18 14:22:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-18 14:22:14,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:14,469 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 14:22:14,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:22:14,470 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:14,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:14,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1007317633, now seen corresponding path program 1 times [2024-11-18 14:22:14,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:14,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837327643] [2024-11-18 14:22:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:14,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:14,612 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 14:22:14,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:14,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837327643] [2024-11-18 14:22:14,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837327643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:14,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:14,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:14,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534664119] [2024-11-18 14:22:14,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:14,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:14,630 INFO L87 Difference]: Start difference. First operand 94 states and 121 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 14:22:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:14,656 INFO L93 Difference]: Finished difference Result 149 states and 191 transitions. [2024-11-18 14:22:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:14,660 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 14:22:14,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:14,662 INFO L225 Difference]: With dead ends: 149 [2024-11-18 14:22:14,664 INFO L226 Difference]: Without dead ends: 85 [2024-11-18 14:22:14,665 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 14:22:14,666 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 16 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 195 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 14:22:14,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:14,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-18 14:22:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-18 14:22:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:22:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-18 14:22:14,684 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 33 [2024-11-18 14:22:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:14,684 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-18 14:22:14,685 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 14:22:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-18 14:22:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 14:22:14,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:14,687 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] [2024-11-18 14:22:14,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:22:14,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:14,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash 697495445, now seen corresponding path program 1 times [2024-11-18 14:22:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396816802] [2024-11-18 14:22:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:14,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:14,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396816802] [2024-11-18 14:22:14,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396816802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:14,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:14,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:22:14,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779069521] [2024-11-18 14:22:14,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:14,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:22:14,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:14,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:22:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:22:14,928 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 14:22:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:15,153 INFO L93 Difference]: Finished difference Result 285 states and 373 transitions. [2024-11-18 14:22:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:22:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 37 [2024-11-18 14:22:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:15,157 INFO L225 Difference]: With dead ends: 285 [2024-11-18 14:22:15,157 INFO L226 Difference]: Without dead ends: 208 [2024-11-18 14:22:15,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:22:15,163 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 186 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:15,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 492 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:22:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-18 14:22:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 202. [2024-11-18 14:22:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 154 states have (on average 1.344155844155844) internal successors, (207), 172 states have internal predecessors, (207), 28 states have call successors, (28), 19 states have call predecessors, (28), 19 states have return successors, (29), 20 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-18 14:22:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 264 transitions. [2024-11-18 14:22:15,207 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 264 transitions. Word has length 37 [2024-11-18 14:22:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:15,212 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 264 transitions. [2024-11-18 14:22:15,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 14:22:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 264 transitions. [2024-11-18 14:22:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:22:15,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:15,218 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 14:22:15,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:22:15,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:15,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:15,219 INFO L85 PathProgramCache]: Analyzing trace with hash 995675595, now seen corresponding path program 1 times [2024-11-18 14:22:15,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:15,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139323870] [2024-11-18 14:22:15,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:15,358 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 14:22:15,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139323870] [2024-11-18 14:22:15,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139323870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:15,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:15,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:22:15,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797850285] [2024-11-18 14:22:15,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:15,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:22:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:15,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:22:15,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:22:15,362 INFO L87 Difference]: Start difference. First operand 202 states and 264 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 14:22:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:15,512 INFO L93 Difference]: Finished difference Result 481 states and 642 transitions. [2024-11-18 14:22:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:22:15,513 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 14:22:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:15,515 INFO L225 Difference]: With dead ends: 481 [2024-11-18 14:22:15,515 INFO L226 Difference]: Without dead ends: 287 [2024-11-18 14:22:15,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:22:15,523 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 76 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:15,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 455 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:22:15,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-18 14:22:15,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2024-11-18 14:22:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 217 states have (on average 1.2857142857142858) internal successors, (279), 236 states have internal predecessors, (279), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-18 14:22:15,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 363 transitions. [2024-11-18 14:22:15,566 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 363 transitions. Word has length 41 [2024-11-18 14:22:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:15,567 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 363 transitions. [2024-11-18 14:22:15,567 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 14:22:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 363 transitions. [2024-11-18 14:22:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:22:15,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:15,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:15,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:22:15,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:15,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282667, now seen corresponding path program 1 times [2024-11-18 14:22:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:15,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466888023] [2024-11-18 14:22:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:15,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:15,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466888023] [2024-11-18 14:22:15,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466888023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:15,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:15,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:22:15,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427919614] [2024-11-18 14:22:15,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:15,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:22:15,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:22:15,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:15,688 INFO L87 Difference]: Start difference. First operand 285 states and 363 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:15,729 INFO L93 Difference]: Finished difference Result 568 states and 744 transitions. [2024-11-18 14:22:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:22:15,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-18 14:22:15,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:15,748 INFO L225 Difference]: With dead ends: 568 [2024-11-18 14:22:15,748 INFO L226 Difference]: Without dead ends: 291 [2024-11-18 14:22:15,749 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 14:22:15,750 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:15,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 418 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-18 14:22:15,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-11-18 14:22:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 242 states have internal predecessors, (285), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-18 14:22:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 369 transitions. [2024-11-18 14:22:15,797 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 369 transitions. Word has length 55 [2024-11-18 14:22:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:15,797 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 369 transitions. [2024-11-18 14:22:15,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 369 transitions. [2024-11-18 14:22:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:22:15,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:15,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:15,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:22:15,802 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:15,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash 588246295, now seen corresponding path program 1 times [2024-11-18 14:22:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:15,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421408473] [2024-11-18 14:22:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:15,907 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 14:22:15,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421408473] [2024-11-18 14:22:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421408473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:15,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:15,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:15,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092316055] [2024-11-18 14:22:15,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:15,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:15,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:15,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:15,910 INFO L87 Difference]: Start difference. First operand 291 states and 369 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:15,941 INFO L93 Difference]: Finished difference Result 578 states and 754 transitions. [2024-11-18 14:22:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:15,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-18 14:22:15,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:15,946 INFO L225 Difference]: With dead ends: 578 [2024-11-18 14:22:15,946 INFO L226 Difference]: Without dead ends: 295 [2024-11-18 14:22:15,949 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 14:22:15,950 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 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 14:22:15,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-18 14:22:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-18 14:22:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 227 states have (on average 1.2731277533039647) internal successors, (289), 246 states have internal predecessors, (289), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-18 14:22:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 373 transitions. [2024-11-18 14:22:15,986 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 373 transitions. Word has length 55 [2024-11-18 14:22:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:15,987 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 373 transitions. [2024-11-18 14:22:15,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 373 transitions. [2024-11-18 14:22:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:22:15,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:15,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:15,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:22:15,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:15,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash 728794905, now seen corresponding path program 1 times [2024-11-18 14:22:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021333334] [2024-11-18 14:22:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:16,070 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 14:22:16,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:16,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021333334] [2024-11-18 14:22:16,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021333334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:16,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:16,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559562900] [2024-11-18 14:22:16,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:16,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:16,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:16,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:16,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:16,075 INFO L87 Difference]: Start difference. First operand 295 states and 373 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:16,203 INFO L93 Difference]: Finished difference Result 984 states and 1283 transitions. [2024-11-18 14:22:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-18 14:22:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:16,210 INFO L225 Difference]: With dead ends: 984 [2024-11-18 14:22:16,210 INFO L226 Difference]: Without dead ends: 697 [2024-11-18 14:22:16,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:16,213 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 135 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:16,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 319 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:22:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-18 14:22:16,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 683. [2024-11-18 14:22:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 521 states have (on average 1.2495201535508638) internal successors, (651), 557 states have internal predecessors, (651), 88 states have call successors, (88), 71 states have call predecessors, (88), 73 states have return successors, (131), 84 states have call predecessors, (131), 88 states have call successors, (131) [2024-11-18 14:22:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 870 transitions. [2024-11-18 14:22:16,292 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 870 transitions. Word has length 55 [2024-11-18 14:22:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:16,292 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 870 transitions. [2024-11-18 14:22:16,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:16,294 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 870 transitions. [2024-11-18 14:22:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:22:16,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:16,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:16,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:22:16,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:16,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1287141247, now seen corresponding path program 1 times [2024-11-18 14:22:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:16,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148943801] [2024-11-18 14:22:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:16,537 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 14:22:16,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:16,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148943801] [2024-11-18 14:22:16,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148943801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:16,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:16,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:22:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088065637] [2024-11-18 14:22:16,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:16,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:22:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:22:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:22:16,540 INFO L87 Difference]: Start difference. First operand 683 states and 870 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 14:22:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:17,038 INFO L93 Difference]: Finished difference Result 1872 states and 2509 transitions. [2024-11-18 14:22:17,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:22:17,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2024-11-18 14:22:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:17,046 INFO L225 Difference]: With dead ends: 1872 [2024-11-18 14:22:17,046 INFO L226 Difference]: Without dead ends: 1334 [2024-11-18 14:22:17,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:22:17,050 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 466 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:17,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 627 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:22:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-11-18 14:22:17,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1187. [2024-11-18 14:22:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 904 states have (on average 1.2300884955752212) internal successors, (1112), 960 states have internal predecessors, (1112), 151 states have call successors, (151), 123 states have call predecessors, (151), 131 states have return successors, (248), 143 states have call predecessors, (248), 151 states have call successors, (248) [2024-11-18 14:22:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1511 transitions. [2024-11-18 14:22:17,164 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1511 transitions. Word has length 59 [2024-11-18 14:22:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:17,164 INFO L471 AbstractCegarLoop]: Abstraction has 1187 states and 1511 transitions. [2024-11-18 14:22:17,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 14:22:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1511 transitions. [2024-11-18 14:22:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-18 14:22:17,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:17,172 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:17,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:22:17,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:17,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:17,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1032451292, now seen corresponding path program 1 times [2024-11-18 14:22:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16111310] [2024-11-18 14:22:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:22:17,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:17,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16111310] [2024-11-18 14:22:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16111310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:17,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930610638] [2024-11-18 14:22:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:17,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:17,375 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 14:22:17,377 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 14:22:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:17,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:22:17,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:22:17,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:22:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930610638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:17,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:17,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-18 14:22:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026745412] [2024-11-18 14:22:17,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:17,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:22:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:22:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:22:17,979 INFO L87 Difference]: Start difference. First operand 1187 states and 1511 transitions. Second operand has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 12 states have internal predecessors, (131), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-18 14:22:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:18,392 INFO L93 Difference]: Finished difference Result 2536 states and 3305 transitions. [2024-11-18 14:22:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:22:18,393 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), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 100 [2024-11-18 14:22:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:18,395 INFO L225 Difference]: With dead ends: 2536 [2024-11-18 14:22:18,395 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:22:18,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:22:18,403 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 147 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:18,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1576 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:22:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:22:18,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:22:18,404 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 14:22:18,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:22:18,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-11-18 14:22:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:18,405 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:22:18,405 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), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-18 14:22:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:22:18,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:22:18,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:22:18,429 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 14:22:18,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:18,611 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:18,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:22:25,444 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:22:25,463 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (let ((.cse0 (= |old(~pumpRunning~0)| 1)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1))) (= ~pumpRunning~0 1)) Eliminated clause: (and (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0) (and (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse0))) (= ~pumpRunning~0 1)) [2024-11-18 14:22:25,496 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) (<= 1 ~switchedOnBeforeTS~0)) (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (<= |old(~waterLevel~0)| 2))) (or (and .cse1 .cse2 (= |old(~waterLevel~0)| 2)) (and .cse1 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse3 .cse2) (and .cse0 .cse3))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse1 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse3) (and .cse0 .cse2))) (or (not .cse1) (= ~pumpRunning~0 1)) (or (< |old(~switchedOnBeforeTS~0)| 1) (< 0 ~switchedOnBeforeTS~0))))) [2024-11-18 14:22:25,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:25,520 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= ~waterLevel~0 2)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))) (or (not .cse3) (= ~pumpRunning~0 1)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= ~waterLevel~0 2)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))) (or (not .cse3) (= ~pumpRunning~0 1))))) [2024-11-18 14:22:25,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:25,533 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= |old(~waterLevel~0)| 2))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (let ((.cse1 (<= |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse1) (and .cse2 .cse0 .cse3) (and (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2 .cse3))) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~waterLevel~0)| 2))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (let ((.cse1 (<= |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse1) (and .cse2 .cse0 .cse3) (and (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2 .cse3))) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1))))) [2024-11-18 14:22:25,536 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:25,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:22:25 BoogieIcfgContainer [2024-11-18 14:22:25,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:22:25,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:22:25,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:22:25,547 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:22:25,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:14" (3/4) ... [2024-11-18 14:22:25,550 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:22:25,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:22:25,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:22:25,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-18 14:22:25,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:22:25,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:22:25,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:22:25,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:22:25,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:22:25,693 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:22:25,694 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:22:25,694 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:22:25,695 INFO L158 Benchmark]: Toolchain (without parser) took 12951.86ms. Allocated memory was 136.3MB in the beginning and 270.5MB in the end (delta: 134.2MB). Free memory was 82.9MB in the beginning and 149.6MB in the end (delta: -66.7MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,695 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:22:25,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.03ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 102.7MB in the end (delta: -20.0MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.00ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 100.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,696 INFO L158 Benchmark]: Boogie Preprocessor took 48.75ms. Allocated memory is still 136.3MB. Free memory was 100.4MB in the beginning and 97.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,696 INFO L158 Benchmark]: RCFGBuilder took 572.36ms. Allocated memory is still 136.3MB. Free memory was 97.7MB in the beginning and 78.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,696 INFO L158 Benchmark]: TraceAbstraction took 11517.79ms. Allocated memory was 136.3MB in the beginning and 270.5MB in the end (delta: 134.2MB). Free memory was 77.6MB in the beginning and 158.0MB in the end (delta: -80.4MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,696 INFO L158 Benchmark]: Witness Printer took 147.55ms. Allocated memory is still 270.5MB. Free memory was 158.0MB in the beginning and 149.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:22:25,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.03ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 102.7MB in the end (delta: -20.0MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.00ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 100.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.75ms. Allocated memory is still 136.3MB. Free memory was 100.4MB in the beginning and 97.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 572.36ms. Allocated memory is still 136.3MB. Free memory was 97.7MB in the beginning and 78.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11517.79ms. Allocated memory was 136.3MB in the beginning and 270.5MB in the end (delta: 134.2MB). Free memory was 77.6MB in the beginning and 158.0MB in the end (delta: -80.4MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. * Witness Printer took 147.55ms. Allocated memory is still 270.5MB. Free memory was 158.0MB in the beginning and 149.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] - GenericResultAtLocation [Line: 993]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 840]: 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 9 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1046 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1026 mSDsluCounter, 4527 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3318 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 775 IncrementalHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 1209 mSDtfsCounter, 775 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1187occurred in iteration=8, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 1279 SizeOfPredicates, 2 NumberOfNonLiveVariables, 334 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 98/123 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: 173]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((2 == waterLevel) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) - ProcedureContractResult [Line: 352]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((2 == waterLevel) && (0 != systemActive)) || (((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (pumpRunning == 1)) Ensures: (((pumpRunning == 0) && ((((2 == waterLevel) && (\old(pumpRunning) == 1)) && (0 != systemActive)) || ((((\old(pumpRunning) == 1) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 267]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) || ((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 2)) || ((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) && ((((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 895]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 240]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((\old(pumpRunning) != 1) || (\old(waterLevel) != 2)) || (waterLevel == 1)) && (((\old(pumpRunning) != 1) || (((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)))) && (((((\old(pumpRunning) == 1) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((((\old(pumpRunning) == 1) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (0 != systemActive))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || ((((2 == waterLevel) && (0 != systemActive)) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 275]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: (((((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || ((((\old(pumpRunning) == 1) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((2 == waterLevel) && (pumpRunning == 1)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= 2)) && ((((pumpRunning == 0) && (\old(waterLevel) <= 2)) || (((0 != systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1))) || ((((1 <= switchedOnBeforeTS) && (\old(waterLevel) <= 2)) && (0 != systemActive)) && (pumpRunning == 1)))) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 371]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) || ((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((((pumpRunning == 0) && (waterLevel <= 2)) || ((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((2 == waterLevel) && (0 != systemActive)) && (pumpRunning == 1))) && ((pumpRunning != 0) || (\result == 0))) && ((\result == 1) || (pumpRunning != 1))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:22:25,732 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