./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_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:00:10,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:00:10,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:00:10,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:00:10,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:00:10,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:00:10,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:00:10,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:00:10,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:00:10,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:00:10,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:00:10,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:00:10,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:00:10,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:00:10,576 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:00:10,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:00:10,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:00:10,579 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:00:10,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:00:10,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:00:10,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:00:10,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:00:10,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:00:10,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:00:10,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:00:10,586 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:00:10,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:00:10,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:00:10,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:00:10,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:00:10,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:00:10,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:00:10,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:10,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:00:10,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:00:10,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:00:10,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:00:10,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:00:10,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:00:10,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:00:10,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:00:10,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:00:10,592 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 [2024-10-11 03:00:10,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:00:10,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:00:10,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:00:10,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:00:10,910 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:00:10,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2024-10-11 03:00:12,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:00:12,667 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:00:12,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2024-10-11 03:00:12,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d95ea9e9e/b4c168529fde46499a180fa889a66ce8/FLAGd0629b5e2 [2024-10-11 03:00:12,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d95ea9e9e/b4c168529fde46499a180fa889a66ce8 [2024-10-11 03:00:12,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:00:12,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:00:12,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:12,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:00:12,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:00:12,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:12" (1/1) ... [2024-10-11 03:00:12,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60470a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:12, skipping insertion in model container [2024-10-11 03:00:12,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:12" (1/1) ... [2024-10-11 03:00:12,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:00:12,958 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_spec4_product23.cil.c[1605,1618] [2024-10-11 03:00:13,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:13,119 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:00:13,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-10-11 03:00:13,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2024-10-11 03:00:13,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2024-10-11 03:00:13,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [520] [2024-10-11 03:00:13,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] [2024-10-11 03:00:13,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [628] [2024-10-11 03:00:13,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] [2024-10-11 03:00:13,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [852] [2024-10-11 03:00:13,137 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_spec4_product23.cil.c[1605,1618] [2024-10-11 03:00:13,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:13,235 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:00:13,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13 WrapperNode [2024-10-11 03:00:13,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:13,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:13,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:00:13,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:00:13,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,286 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 195 [2024-10-11 03:00:13,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:13,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:00:13,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:00:13,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:00:13,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,319 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]. [2024-10-11 03:00:13,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:00:13,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:00:13,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:00:13,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:00:13,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (1/1) ... [2024-10-11 03:00:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:13,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:13,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:00:13,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:00:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:00:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:00:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:00:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:00:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:00:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:00:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:00:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:00:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:00:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:00:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:00:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:00:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:00:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:00:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:00:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:00:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:00:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:00:13,513 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:00:13,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:00:13,782 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-10-11 03:00:13,783 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:00:13,876 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:00:13,877 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:00:13,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:13 BoogieIcfgContainer [2024-10-11 03:00:13,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:00:13,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:00:13,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:00:13,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:00:13,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:00:12" (1/3) ... [2024-10-11 03:00:13,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b96cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:13, skipping insertion in model container [2024-10-11 03:00:13,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:13" (2/3) ... [2024-10-11 03:00:13,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b96cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:13, skipping insertion in model container [2024-10-11 03:00:13,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:13" (3/3) ... [2024-10-11 03:00:13,889 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2024-10-11 03:00:13,907 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:00:13,908 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:00:13,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:00:13,987 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;@77099a21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:00:13,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:00:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 53 states have internal predecessors, (69), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 03:00:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 03:00:14,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:14,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:14,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:14,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash -51742522, now seen corresponding path program 1 times [2024-10-11 03:00:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:14,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167590389] [2024-10-11 03:00:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:14,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:14,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167590389] [2024-10-11 03:00:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167590389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:14,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:14,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:14,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578216852] [2024-10-11 03:00:14,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:14,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:00:14,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:14,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:00:14,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:14,249 INFO L87 Difference]: Start difference. First operand has 66 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 53 states have internal predecessors, (69), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:14,367 INFO L93 Difference]: Finished difference Result 130 states and 191 transitions. [2024-10-11 03:00:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:00:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 03:00:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:14,379 INFO L225 Difference]: With dead ends: 130 [2024-10-11 03:00:14,380 INFO L226 Difference]: Without dead ends: 61 [2024-10-11 03:00:14,385 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 [2024-10-11 03:00:14,388 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:14,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:14,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-11 03:00:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-11 03:00:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 49 states have internal predecessors, (59), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-11 03:00:14,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2024-10-11 03:00:14,429 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 12 [2024-10-11 03:00:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:14,430 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2024-10-11 03:00:14,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2024-10-11 03:00:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 03:00:14,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:14,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:14,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:00:14,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:14,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:14,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1365896672, now seen corresponding path program 1 times [2024-10-11 03:00:14,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130869322] [2024-10-11 03:00:14,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:14,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:14,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:14,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130869322] [2024-10-11 03:00:14,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130869322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:14,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:14,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:14,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676359106] [2024-10-11 03:00:14,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:14,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:14,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:14,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:14,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:14,558 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:14,599 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2024-10-11 03:00:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:14,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 03:00:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:14,601 INFO L225 Difference]: With dead ends: 92 [2024-10-11 03:00:14,601 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 03:00:14,602 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 [2024-10-11 03:00:14,603 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:14,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 107 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 03:00:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-11 03:00:14,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 44 states have internal predecessors, (53), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 03:00:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2024-10-11 03:00:14,616 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 13 [2024-10-11 03:00:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:14,616 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2024-10-11 03:00:14,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2024-10-11 03:00:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 03:00:14,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:14,618 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:14,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:00:14,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:14,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -156322815, now seen corresponding path program 1 times [2024-10-11 03:00:14,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:14,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619501532] [2024-10-11 03:00:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:14,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:14,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619501532] [2024-10-11 03:00:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619501532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:14,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:14,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:14,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765339678] [2024-10-11 03:00:14,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:14,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:14,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:14,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:14,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:14,704 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:14,775 INFO L93 Difference]: Finished difference Result 155 states and 216 transitions. [2024-10-11 03:00:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 03:00:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:14,779 INFO L225 Difference]: With dead ends: 155 [2024-10-11 03:00:14,779 INFO L226 Difference]: Without dead ends: 104 [2024-10-11 03:00:14,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:14,781 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 60 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 128 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 [2024-10-11 03:00:14,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 128 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-11 03:00:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2024-10-11 03:00:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 83 states have internal predecessors, (101), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 11 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 03:00:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions. [2024-10-11 03:00:14,819 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 16 [2024-10-11 03:00:14,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:14,819 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions. [2024-10-11 03:00:14,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions. [2024-10-11 03:00:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 03:00:14,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:14,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:14,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:00:14,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:14,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash -751516388, now seen corresponding path program 1 times [2024-10-11 03:00:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:14,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971612346] [2024-10-11 03:00:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:14,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:14,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971612346] [2024-10-11 03:00:14,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971612346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:14,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:14,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192491547] [2024-10-11 03:00:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:14,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:14,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:14,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:14,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:14,941 INFO L87 Difference]: Start difference. First operand 101 states and 141 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:15,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:15,067 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2024-10-11 03:00:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-11 03:00:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:15,071 INFO L225 Difference]: With dead ends: 289 [2024-10-11 03:00:15,071 INFO L226 Difference]: Without dead ends: 190 [2024-10-11 03:00:15,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:15,074 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 47 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:15,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 176 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-10-11 03:00:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-10-11 03:00:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 154 states have internal predecessors, (185), 40 states have call successors, (40), 24 states have call predecessors, (40), 22 states have return successors, (42), 20 states have call predecessors, (42), 40 states have call successors, (42) [2024-10-11 03:00:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 267 transitions. [2024-10-11 03:00:15,101 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 267 transitions. Word has length 19 [2024-10-11 03:00:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:15,101 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 267 transitions. [2024-10-11 03:00:15,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 267 transitions. [2024-10-11 03:00:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:00:15,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:15,108 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] [2024-10-11 03:00:15,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:00:15,109 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:15,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1577963425, now seen corresponding path program 1 times [2024-10-11 03:00:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316987794] [2024-10-11 03:00:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:15,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:15,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316987794] [2024-10-11 03:00:15,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316987794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:15,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:15,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:15,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886860455] [2024-10-11 03:00:15,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:15,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:15,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:15,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:15,211 INFO L87 Difference]: Start difference. First operand 190 states and 267 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:15,257 INFO L93 Difference]: Finished difference Result 328 states and 460 transitions. [2024-10-11 03:00:15,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:15,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-11 03:00:15,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:15,262 INFO L225 Difference]: With dead ends: 328 [2024-10-11 03:00:15,263 INFO L226 Difference]: Without dead ends: 140 [2024-10-11 03:00:15,266 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 [2024-10-11 03:00:15,270 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:15,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-11 03:00:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-10-11 03:00:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 99 states have (on average 1.2828282828282829) internal successors, (127), 106 states have internal predecessors, (127), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 03:00:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2024-10-11 03:00:15,307 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 21 [2024-10-11 03:00:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:15,307 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2024-10-11 03:00:15,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2024-10-11 03:00:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:00:15,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:15,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:15,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:00:15,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:15,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:15,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1040686410, now seen corresponding path program 1 times [2024-10-11 03:00:15,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:15,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480491213] [2024-10-11 03:00:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:15,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:15,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:15,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480491213] [2024-10-11 03:00:15,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480491213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:15,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:15,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:00:15,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315002686] [2024-10-11 03:00:15,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:15,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:00:15,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:15,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:00:15,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:15,424 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:15,532 INFO L93 Difference]: Finished difference Result 142 states and 171 transitions. [2024-10-11 03:00:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:00:15,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2024-10-11 03:00:15,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:15,536 INFO L225 Difference]: With dead ends: 142 [2024-10-11 03:00:15,536 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:15,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:15,538 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 42 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:15,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:15,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:15,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:15,542 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) [2024-10-11 03:00:15,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:15,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-11 03:00:15,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:15,543 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:15,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:15,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:15,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:15,546 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:15,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:00:15,552 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 03:00:15,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:16,073 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:16,109 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:16,112 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:16,117 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:16,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:16 BoogieIcfgContainer [2024-10-11 03:00:16,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:16,121 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:16,121 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:16,121 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:16,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:13" (3/4) ... [2024-10-11 03:00:16,124 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:16,127 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:16,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:16,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:16,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:16,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:16,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:16,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:00:16,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-10-11 03:00:16,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:16,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:16,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:16,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:16,264 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:16,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:16,265 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:16,265 INFO L158 Benchmark]: Toolchain (without parser) took 3549.57ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.4MB in the beginning and 138.6MB in the end (delta: -67.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:16,266 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:16,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.63ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.2MB in the beginning and 162.9MB in the end (delta: -91.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.32ms. Allocated memory is still 195.0MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,266 INFO L158 Benchmark]: Boogie Preprocessor took 47.04ms. Allocated memory is still 195.0MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,267 INFO L158 Benchmark]: RCFGBuilder took 542.67ms. Allocated memory is still 195.0MB. Free memory was 158.7MB in the beginning and 133.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,267 INFO L158 Benchmark]: TraceAbstraction took 2240.11ms. Allocated memory is still 195.0MB. Free memory was 133.6MB in the beginning and 144.9MB in the end (delta: -11.3MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,267 INFO L158 Benchmark]: Witness Printer took 144.10ms. Allocated memory is still 195.0MB. Free memory was 144.9MB in the beginning and 138.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:00:16,270 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 144.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.63ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.2MB in the beginning and 162.9MB in the end (delta: -91.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.32ms. Allocated memory is still 195.0MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.04ms. Allocated memory is still 195.0MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.67ms. Allocated memory is still 195.0MB. Free memory was 158.7MB in the beginning and 133.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2240.11ms. Allocated memory is still 195.0MB. Free memory was 133.6MB in the beginning and 144.9MB in the end (delta: -11.3MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 144.10ms. Allocated memory is still 195.0MB. Free memory was 144.9MB in the beginning and 138.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [520] - GenericResultAtLocation [Line: 558]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] - GenericResultAtLocation [Line: 628]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [628] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] - GenericResultAtLocation [Line: 852]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [852] * 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: 54]: 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 8 procedures, 66 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, 203 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 586 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 327 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 571]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - ProcedureContractResult [Line: 728]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 661]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 458]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 854]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 637]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) - ProcedureContractResult [Line: 446]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 669]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (\old(pumpRunning) == 0)) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:16,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE