./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:41:18,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:41:18,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:41:18,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:41:18,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:41:18,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:41:18,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:41:18,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:41:18,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:41:18,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:41:18,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:41:18,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:41:18,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:41:18,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:41:18,606 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:41:18,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:41:18,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:41:18,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:41:18,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:41:18,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:41:18,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:41:18,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:41:18,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:41:18,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:41:18,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:41:18,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:41:18,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:41:18,614 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:41:18,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:41:18,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:41:18,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:41:18,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:41:18,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:41:18,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:41:18,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:41:18,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:41:18,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:41:18,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:41:18,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:41:18,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:41:18,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:41:18,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:41:18,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2024-10-12 19:41:18,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:41:18,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:41:18,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:41:18,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:41:18,898 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:41:18,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2024-10-12 19:41:20,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:41:20,609 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:41:20,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2024-10-12 19:41:20,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53a85152b/5dccb03d940f490895a8ae18067c9d51/FLAGebcb5358f [2024-10-12 19:41:20,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53a85152b/5dccb03d940f490895a8ae18067c9d51 [2024-10-12 19:41:20,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:41:20,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:41:20,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:41:20,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:41:20,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:41:20,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:20" (1/1) ... [2024-10-12 19:41:20,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44324745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:20, skipping insertion in model container [2024-10-12 19:41:20,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:20" (1/1) ... [2024-10-12 19:41:20,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:41:21,063 WARN L248 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_spec3_product56.cil.c[19275,19288] [2024-10-12 19:41:21,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:41:21,083 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:41:21,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-10-12 19:41:21,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2024-10-12 19:41:21,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2024-10-12 19:41:21,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] [2024-10-12 19:41:21,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2024-10-12 19:41:21,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] [2024-10-12 19:41:21,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2024-10-12 19:41:21,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] [2024-10-12 19:41:21,250 WARN L248 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_spec3_product56.cil.c[19275,19288] [2024-10-12 19:41:21,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:41:21,285 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:41:21,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21 WrapperNode [2024-10-12 19:41:21,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:41:21,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:41:21,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:41:21,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:41:21,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,348 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 236 [2024-10-12 19:41:21,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:41:21,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:41:21,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:41:21,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:41:21,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,389 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]. [2024-10-12 19:41:21,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:41:21,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:41:21,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:41:21,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:41:21,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (1/1) ... [2024-10-12 19:41:21,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:41:21,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:41:21,453 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) [2024-10-12 19:41:21,455 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 [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-12 19:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:41:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-12 19:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-12 19:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:41:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:41:21,584 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:41:21,585 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:41:21,855 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-10-12 19:41:21,855 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:41:21,930 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:41:21,930 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:41:21,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:21 BoogieIcfgContainer [2024-10-12 19:41:21,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:41:21,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:41:21,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:41:21,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:41:21,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:41:20" (1/3) ... [2024-10-12 19:41:21,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2e842f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:21, skipping insertion in model container [2024-10-12 19:41:21,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21" (2/3) ... [2024-10-12 19:41:21,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2e842f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:21, skipping insertion in model container [2024-10-12 19:41:21,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:21" (3/3) ... [2024-10-12 19:41:21,943 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2024-10-12 19:41:21,956 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:41:21,956 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:41:22,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:41:22,014 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;@cd5a354, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:41:22,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:41:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 56 states have (on average 1.5357142857142858) internal successors, (86), 67 states have internal predecessors, (86), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-12 19:41:22,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 19:41:22,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:22,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:22,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:22,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:22,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1021547899, now seen corresponding path program 1 times [2024-10-12 19:41:22,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:22,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459947253] [2024-10-12 19:41:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 19:41:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:22,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:22,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459947253] [2024-10-12 19:41:22,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459947253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:22,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:22,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:41:22,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480387108] [2024-10-12 19:41:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:22,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:41:22,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:41:22,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:41:22,265 INFO L87 Difference]: Start difference. First operand has 84 states, 56 states have (on average 1.5357142857142858) internal successors, (86), 67 states have internal predecessors, (86), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:22,359 INFO L93 Difference]: Finished difference Result 166 states and 241 transitions. [2024-10-12 19:41:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:41:22,362 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-12 19:41:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:22,370 INFO L225 Difference]: With dead ends: 166 [2024-10-12 19:41:22,371 INFO L226 Difference]: Without dead ends: 79 [2024-10-12 19:41:22,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:41:22,377 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:22,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-12 19:41:22,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-12 19:41:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 63 states have internal predecessors, (76), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-12 19:41:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2024-10-12 19:41:22,416 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 17 [2024-10-12 19:41:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:22,417 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2024-10-12 19:41:22,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2024-10-12 19:41:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 19:41:22,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:22,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:22,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:41:22,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash 159238146, now seen corresponding path program 1 times [2024-10-12 19:41:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215389725] [2024-10-12 19:41:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-12 19:41:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:22,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:22,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215389725] [2024-10-12 19:41:22,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215389725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:22,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:22,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:41:22,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727918919] [2024-10-12 19:41:22,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:22,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:41:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:41:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:22,525 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:22,580 INFO L93 Difference]: Finished difference Result 128 states and 176 transitions. [2024-10-12 19:41:22,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:41:22,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-12 19:41:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:22,583 INFO L225 Difference]: With dead ends: 128 [2024-10-12 19:41:22,583 INFO L226 Difference]: Without dead ends: 71 [2024-10-12 19:41:22,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:22,586 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 14 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:22,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 150 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:41:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-12 19:41:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-12 19:41:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 58 states have internal predecessors, (70), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-12 19:41:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 98 transitions. [2024-10-12 19:41:22,607 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 98 transitions. Word has length 18 [2024-10-12 19:41:22,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:22,607 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 98 transitions. [2024-10-12 19:41:22,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,608 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 98 transitions. [2024-10-12 19:41:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-12 19:41:22,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:22,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:22,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:41:22,610 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:22,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1522283107, now seen corresponding path program 1 times [2024-10-12 19:41:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015289762] [2024-10-12 19:41:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:22,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:41:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:22,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:22,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015289762] [2024-10-12 19:41:22,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015289762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:22,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:22,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:41:22,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258980057] [2024-10-12 19:41:22,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:22,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:41:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:41:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:22,741 INFO L87 Difference]: Start difference. First operand 71 states and 98 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:22,832 INFO L93 Difference]: Finished difference Result 209 states and 291 transitions. [2024-10-12 19:41:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:41:22,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-12 19:41:22,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:22,836 INFO L225 Difference]: With dead ends: 209 [2024-10-12 19:41:22,836 INFO L226 Difference]: Without dead ends: 140 [2024-10-12 19:41:22,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:22,841 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 92 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:22,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 175 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:22,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-12 19:41:22,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2024-10-12 19:41:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 92 states have (on average 1.4673913043478262) internal successors, (135), 111 states have internal predecessors, (135), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-12 19:41:22,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 191 transitions. [2024-10-12 19:41:22,867 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 191 transitions. Word has length 21 [2024-10-12 19:41:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:22,867 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 191 transitions. [2024-10-12 19:41:22,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 191 transitions. [2024-10-12 19:41:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-12 19:41:22,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:22,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:22,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:41:22,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:22,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1698190122, now seen corresponding path program 1 times [2024-10-12 19:41:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190138124] [2024-10-12 19:41:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:22,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:23,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:41:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:23,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:23,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190138124] [2024-10-12 19:41:23,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190138124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:23,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:23,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 19:41:23,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918305738] [2024-10-12 19:41:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:23,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:41:23,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:41:23,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 19:41:23,095 INFO L87 Difference]: Start difference. First operand 137 states and 191 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:23,224 INFO L93 Difference]: Finished difference Result 397 states and 574 transitions. [2024-10-12 19:41:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:41:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-12 19:41:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:23,229 INFO L225 Difference]: With dead ends: 397 [2024-10-12 19:41:23,233 INFO L226 Difference]: Without dead ends: 262 [2024-10-12 19:41:23,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:41:23,235 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 68 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:23,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 234 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-12 19:41:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2024-10-12 19:41:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 175 states have (on average 1.4342857142857144) internal successors, (251), 210 states have internal predecessors, (251), 56 states have call successors, (56), 32 states have call predecessors, (56), 30 states have return successors, (58), 32 states have call predecessors, (58), 56 states have call successors, (58) [2024-10-12 19:41:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2024-10-12 19:41:23,288 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 365 transitions. Word has length 24 [2024-10-12 19:41:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:23,288 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 365 transitions. [2024-10-12 19:41:23,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:23,289 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 365 transitions. [2024-10-12 19:41:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-12 19:41:23,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:23,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:23,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:41:23,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:23,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1542633733, now seen corresponding path program 1 times [2024-10-12 19:41:23,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:23,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152005084] [2024-10-12 19:41:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:23,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:23,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:41:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:23,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:23,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152005084] [2024-10-12 19:41:23,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152005084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:23,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:23,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 19:41:23,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455301112] [2024-10-12 19:41:23,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:23,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:41:23,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:23,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:41:23,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 19:41:23,369 INFO L87 Difference]: Start difference. First operand 262 states and 365 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:23,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:23,485 INFO L93 Difference]: Finished difference Result 680 states and 971 transitions. [2024-10-12 19:41:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:41:23,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-12 19:41:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:23,489 INFO L225 Difference]: With dead ends: 680 [2024-10-12 19:41:23,489 INFO L226 Difference]: Without dead ends: 420 [2024-10-12 19:41:23,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:41:23,492 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 60 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:23,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 287 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-12 19:41:23,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-10-12 19:41:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 291 states have (on average 1.3608247422680413) internal successors, (396), 320 states have internal predecessors, (396), 72 states have call successors, (72), 60 states have call predecessors, (72), 56 states have return successors, (96), 58 states have call predecessors, (96), 72 states have call successors, (96) [2024-10-12 19:41:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 564 transitions. [2024-10-12 19:41:23,547 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 564 transitions. Word has length 26 [2024-10-12 19:41:23,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:23,548 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 564 transitions. [2024-10-12 19:41:23,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:23,548 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 564 transitions. [2024-10-12 19:41:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 19:41:23,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:23,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:23,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:41:23,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:23,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash -378050800, now seen corresponding path program 1 times [2024-10-12 19:41:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147306869] [2024-10-12 19:41:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:23,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 19:41:23,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 19:41:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 19:41:23,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 19:41:23,621 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 19:41:23,623 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:41:23,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:41:23,629 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-12 19:41:23,669 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:41:23,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:41:23 BoogieIcfgContainer [2024-10-12 19:41:23,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:41:23,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:41:23,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:41:23,678 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:41:23,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:21" (3/4) ... [2024-10-12 19:41:23,680 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-12 19:41:23,738 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:41:23,739 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:41:23,739 INFO L158 Benchmark]: Toolchain (without parser) took 3090.37ms. Allocated memory is still 172.0MB. Free memory was 103.3MB in the beginning and 70.7MB in the end (delta: 32.6MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,739 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 172.0MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:41:23,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.08ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 140.6MB in the end (delta: -37.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.77ms. Allocated memory is still 172.0MB. Free memory was 140.6MB in the beginning and 138.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,740 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 135.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,741 INFO L158 Benchmark]: RCFGBuilder took 512.02ms. Allocated memory is still 172.0MB. Free memory was 135.9MB in the beginning and 110.1MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,741 INFO L158 Benchmark]: TraceAbstraction took 1745.35ms. Allocated memory is still 172.0MB. Free memory was 109.3MB in the beginning and 73.8MB in the end (delta: 35.5MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,741 INFO L158 Benchmark]: Witness Printer took 60.63ms. Allocated memory is still 172.0MB. Free memory was 73.8MB in the beginning and 70.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:23,742 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 172.0MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.08ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 140.6MB in the end (delta: -37.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.77ms. Allocated memory is still 172.0MB. Free memory was 140.6MB in the beginning and 138.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 135.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.02ms. Allocated memory is still 172.0MB. Free memory was 135.9MB in the beginning and 110.1MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1745.35ms. Allocated memory is still 172.0MB. Free memory was 109.3MB in the beginning and 73.8MB in the end (delta: 35.5MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 60.63ms. Allocated memory is still 172.0MB. Free memory was 73.8MB in the beginning and 70.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] - GenericResultAtLocation [Line: 1018]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] * 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 - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L972] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L972] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) [L1000] CALL stopSystem() [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 [L1000] RET stopSystem() [L1007] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L711] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L1023] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 238 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 943 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 473 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 470 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-12 19:41:23,771 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE