./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/product-lines/minepump_spec2_product60.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 a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:04:11,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:04:11,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:04:11,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:04:11,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:04:11,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:04:11,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:04:11,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:04:11,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:04:11,250 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:04:11,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:04:11,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:04:11,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:04:11,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:04:11,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:04:11,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:04:11,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:04:11,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:04:11,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:04:11,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:04:11,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:04:11,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:04:11,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:04:11,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:04:11,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:04:11,256 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:04:11,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:04:11,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:04:11,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:04:11,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:04:11,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:04:11,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:04:11,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:04:11,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:04:11,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:04:11,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:04:11,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:04:11,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:04:11,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:04:11,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:04:11,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:04:11,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:04:11,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 [2024-11-22 02:04:11,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:04:11,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:04:11,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:04:11,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:04:11,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:04:11,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2024-11-22 02:04:12,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:04:12,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:04:12,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2024-11-22 02:04:12,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac93e49f/58976ecb03cf454eba161030d0badadc/FLAG9d91dc32b [2024-11-22 02:04:12,982 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac93e49f/58976ecb03cf454eba161030d0badadc [2024-11-22 02:04:12,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:04:12,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:04:12,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:04:12,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:04:12,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:04:12,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:12" (1/1) ... [2024-11-22 02:04:12,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b18732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:12, skipping insertion in model container [2024-11-22 02:04:12,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:12" (1/1) ... [2024-11-22 02:04:13,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:04:13,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2024-11-22 02:04:13,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:04:13,295 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:04:13,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-22 02:04:13,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [160] [2024-11-22 02:04:13,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-11-22 02:04:13,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [273] [2024-11-22 02:04:13,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [308] [2024-11-22 02:04:13,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [379] [2024-11-22 02:04:13,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [745] [2024-11-22 02:04:13,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [987] [2024-11-22 02:04:13,315 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2024-11-22 02:04:13,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:04:13,414 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:04:13,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13 WrapperNode [2024-11-22 02:04:13,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:04:13,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:04:13,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:04:13,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:04:13,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,463 INFO L138 Inliner]: procedures = 59, calls = 104, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 229 [2024-11-22 02:04:13,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:04:13,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:04:13,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:04:13,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:04:13,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,494 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:04:13,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:04:13,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:04:13,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:04:13,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:04:13,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (1/1) ... [2024-11-22 02:04:13,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:04:13,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:13,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:04:13,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:04:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:04:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:04:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:04:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:04:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:04:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:04:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:04:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-22 02:04:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-22 02:04:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:04:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:04:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:04:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:04:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-22 02:04:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-22 02:04:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:04:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:04:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:04:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:04:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:04:13,661 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:04:13,663 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:04:13,915 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-22 02:04:13,916 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:04:13,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:04:13,926 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:04:13,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:13 BoogieIcfgContainer [2024-11-22 02:04:13,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:04:13,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:04:13,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:04:13,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:04:13,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:04:12" (1/3) ... [2024-11-22 02:04:13,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd19fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:13, skipping insertion in model container [2024-11-22 02:04:13,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:13" (2/3) ... [2024-11-22 02:04:13,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd19fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:13, skipping insertion in model container [2024-11-22 02:04:13,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:13" (3/3) ... [2024-11-22 02:04:13,933 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2024-11-22 02:04:13,946 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:04:13,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:04:13,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:04:14,007 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;@1180259a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:04:14,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:04:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 86 states have internal predecessors, (106), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 02:04:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 02:04:14,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:14,021 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] [2024-11-22 02:04:14,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:14,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1691208954, now seen corresponding path program 1 times [2024-11-22 02:04:14,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:14,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634557731] [2024-11-22 02:04:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:04:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634557731] [2024-11-22 02:04:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634557731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:14,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:04:14,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063760018] [2024-11-22 02:04:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:14,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:04:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:04:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:04:14,229 INFO L87 Difference]: Start difference. First operand has 101 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 86 states have internal predecessors, (106), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:14,263 INFO L93 Difference]: Finished difference Result 193 states and 262 transitions. [2024-11-22 02:04:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:04:14,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2024-11-22 02:04:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:14,273 INFO L225 Difference]: With dead ends: 193 [2024-11-22 02:04:14,274 INFO L226 Difference]: Without dead ends: 92 [2024-11-22 02:04:14,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:04:14,281 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:14,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-22 02:04:14,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-22 02:04:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 78 states have internal predecessors, (92), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 02:04:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-11-22 02:04:14,326 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 25 [2024-11-22 02:04:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:14,327 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-11-22 02:04:14,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-11-22 02:04:14,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 02:04:14,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:14,329 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] [2024-11-22 02:04:14,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:04:14,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:14,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:14,330 INFO L85 PathProgramCache]: Analyzing trace with hash 356391721, now seen corresponding path program 1 times [2024-11-22 02:04:14,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:14,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568239729] [2024-11-22 02:04:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:14,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:04:14,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:14,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568239729] [2024-11-22 02:04:14,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568239729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:14,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:14,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:04:14,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271236330] [2024-11-22 02:04:14,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:14,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:14,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:14,450 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:14,468 INFO L93 Difference]: Finished difference Result 144 states and 186 transitions. [2024-11-22 02:04:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2024-11-22 02:04:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:14,470 INFO L225 Difference]: With dead ends: 144 [2024-11-22 02:04:14,471 INFO L226 Difference]: Without dead ends: 83 [2024-11-22 02:04:14,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:14,473 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:14,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-22 02:04:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-22 02:04:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.328125) internal successors, (85), 72 states have internal predecessors, (85), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-22 02:04:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2024-11-22 02:04:14,490 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 26 [2024-11-22 02:04:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:14,490 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2024-11-22 02:04:14,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,490 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2024-11-22 02:04:14,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 02:04:14,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:14,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:14,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:04:14,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:14,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:14,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1826063129, now seen corresponding path program 1 times [2024-11-22 02:04:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:14,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874060941] [2024-11-22 02:04:14,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:14,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:04:14,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:14,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874060941] [2024-11-22 02:04:14,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874060941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:14,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:14,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:04:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961431721] [2024-11-22 02:04:14,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:14,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:04:14,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:04:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:04:14,615 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:14,672 INFO L93 Difference]: Finished difference Result 201 states and 263 transitions. [2024-11-22 02:04:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:04:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2024-11-22 02:04:14,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:14,677 INFO L225 Difference]: With dead ends: 201 [2024-11-22 02:04:14,677 INFO L226 Difference]: Without dead ends: 126 [2024-11-22 02:04:14,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:14,679 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 100 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:14,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 413 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-22 02:04:14,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2024-11-22 02:04:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 94 states have (on average 1.351063829787234) internal successors, (127), 105 states have internal predecessors, (127), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-22 02:04:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 160 transitions. [2024-11-22 02:04:14,697 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 160 transitions. Word has length 31 [2024-11-22 02:04:14,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:14,698 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 160 transitions. [2024-11-22 02:04:14,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:04:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 160 transitions. [2024-11-22 02:04:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-22 02:04:14,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:14,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:14,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:04:14,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:14,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1496608149, now seen corresponding path program 1 times [2024-11-22 02:04:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:14,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084575951] [2024-11-22 02:04:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:14,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:04:14,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084575951] [2024-11-22 02:04:14,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084575951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:14,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:14,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:04:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568230035] [2024-11-22 02:04:14,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:14,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:04:14,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:14,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:04:14,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:04:14,822 INFO L87 Difference]: Start difference. First operand 123 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-22 02:04:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:14,911 INFO L93 Difference]: Finished difference Result 274 states and 366 transitions. [2024-11-22 02:04:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:04:14,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2024-11-22 02:04:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:14,913 INFO L225 Difference]: With dead ends: 274 [2024-11-22 02:04:14,913 INFO L226 Difference]: Without dead ends: 159 [2024-11-22 02:04:14,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:14,915 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 76 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:14,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 365 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-22 02:04:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-22 02:04:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.2892561983471074) internal successors, (156), 132 states have internal predecessors, (156), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (25), 18 states have call predecessors, (25), 19 states have call successors, (25) [2024-11-22 02:04:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 200 transitions. [2024-11-22 02:04:14,930 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 200 transitions. Word has length 34 [2024-11-22 02:04:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:14,930 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 200 transitions. [2024-11-22 02:04:14,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-22 02:04:14,931 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 200 transitions. [2024-11-22 02:04:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 02:04:14,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:14,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:14,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:04:14,933 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:14,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:14,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1559167371, now seen corresponding path program 1 times [2024-11-22 02:04:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:14,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67743786] [2024-11-22 02:04:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:14,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:14,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67743786] [2024-11-22 02:04:14,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67743786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:14,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:14,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:04:14,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636443685] [2024-11-22 02:04:14,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:14,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:14,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:14,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:14,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:14,983 INFO L87 Difference]: Start difference. First operand 158 states and 200 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:15,005 INFO L93 Difference]: Finished difference Result 310 states and 394 transitions. [2024-11-22 02:04:15,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:15,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-22 02:04:15,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:15,007 INFO L225 Difference]: With dead ends: 310 [2024-11-22 02:04:15,007 INFO L226 Difference]: Without dead ends: 160 [2024-11-22 02:04:15,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:15,009 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 37 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:15,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 234 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:15,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-22 02:04:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2024-11-22 02:04:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.28099173553719) internal successors, (155), 132 states have internal predecessors, (155), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2024-11-22 02:04:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 197 transitions. [2024-11-22 02:04:15,030 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 197 transitions. Word has length 56 [2024-11-22 02:04:15,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:15,031 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 197 transitions. [2024-11-22 02:04:15,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 197 transitions. [2024-11-22 02:04:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:04:15,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:15,032 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:15,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:04:15,033 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:15,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1570330873, now seen corresponding path program 1 times [2024-11-22 02:04:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:15,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894333413] [2024-11-22 02:04:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:15,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894333413] [2024-11-22 02:04:15,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894333413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:15,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:15,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:04:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620322620] [2024-11-22 02:04:15,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:15,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:04:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:15,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:04:15,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:04:15,108 INFO L87 Difference]: Start difference. First operand 158 states and 197 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:15,139 INFO L93 Difference]: Finished difference Result 311 states and 398 transitions. [2024-11-22 02:04:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:04:15,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2024-11-22 02:04:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:15,142 INFO L225 Difference]: With dead ends: 311 [2024-11-22 02:04:15,142 INFO L226 Difference]: Without dead ends: 161 [2024-11-22 02:04:15,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:04:15,144 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:15,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-22 02:04:15,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-22 02:04:15,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 135 states have internal predecessors, (158), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2024-11-22 02:04:15,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2024-11-22 02:04:15,158 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 53 [2024-11-22 02:04:15,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:15,158 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2024-11-22 02:04:15,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,158 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2024-11-22 02:04:15,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:04:15,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:15,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:15,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:04:15,160 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:15,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash -801408389, now seen corresponding path program 1 times [2024-11-22 02:04:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334950770] [2024-11-22 02:04:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:15,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:15,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:15,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334950770] [2024-11-22 02:04:15,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334950770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:15,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:15,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:04:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948125988] [2024-11-22 02:04:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:15,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:04:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:04:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:04:15,235 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:15,262 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2024-11-22 02:04:15,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:04:15,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2024-11-22 02:04:15,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:15,266 INFO L225 Difference]: With dead ends: 316 [2024-11-22 02:04:15,267 INFO L226 Difference]: Without dead ends: 163 [2024-11-22 02:04:15,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:04:15,268 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:15,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-22 02:04:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-22 02:04:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 137 states have internal predecessors, (160), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2024-11-22 02:04:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 202 transitions. [2024-11-22 02:04:15,284 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 202 transitions. Word has length 53 [2024-11-22 02:04:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:15,285 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 202 transitions. [2024-11-22 02:04:15,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:04:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 202 transitions. [2024-11-22 02:04:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:04:15,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:15,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:15,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:04:15,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:15,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash 584795005, now seen corresponding path program 1 times [2024-11-22 02:04:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:15,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280404882] [2024-11-22 02:04:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:15,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:15,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:15,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280404882] [2024-11-22 02:04:15,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280404882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:15,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:15,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:04:15,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042940979] [2024-11-22 02:04:15,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:15,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:04:15,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:15,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:04:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:04:15,400 INFO L87 Difference]: Start difference. First operand 163 states and 202 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 02:04:15,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:15,503 INFO L93 Difference]: Finished difference Result 541 states and 691 transitions. [2024-11-22 02:04:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:04:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2024-11-22 02:04:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:15,508 INFO L225 Difference]: With dead ends: 541 [2024-11-22 02:04:15,508 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 02:04:15,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:04:15,509 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 132 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:15,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 309 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 02:04:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 377. [2024-11-22 02:04:15,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 290 states have (on average 1.2517241379310344) internal successors, (363), 311 states have internal predecessors, (363), 44 states have call successors, (44), 41 states have call predecessors, (44), 42 states have return successors, (63), 43 states have call predecessors, (63), 44 states have call successors, (63) [2024-11-22 02:04:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 470 transitions. [2024-11-22 02:04:15,541 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 470 transitions. Word has length 53 [2024-11-22 02:04:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:15,542 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 470 transitions. [2024-11-22 02:04:15,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 02:04:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 470 transitions. [2024-11-22 02:04:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 02:04:15,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:15,543 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:15,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:04:15,544 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:15,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:15,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2002712797, now seen corresponding path program 1 times [2024-11-22 02:04:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:15,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129391466] [2024-11-22 02:04:15,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129391466] [2024-11-22 02:04:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129391466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:15,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:15,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:04:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866236069] [2024-11-22 02:04:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:15,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:04:15,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:15,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:04:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:04:15,685 INFO L87 Difference]: Start difference. First operand 377 states and 470 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:04:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:15,885 INFO L93 Difference]: Finished difference Result 1092 states and 1412 transitions. [2024-11-22 02:04:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 02:04:15,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2024-11-22 02:04:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:15,889 INFO L225 Difference]: With dead ends: 1092 [2024-11-22 02:04:15,889 INFO L226 Difference]: Without dead ends: 723 [2024-11-22 02:04:15,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:04:15,894 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 89 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:15,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 689 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:15,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-22 02:04:15,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2024-11-22 02:04:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 550 states have (on average 1.2272727272727273) internal successors, (675), 589 states have internal predecessors, (675), 88 states have call successors, (88), 82 states have call predecessors, (88), 84 states have return successors, (137), 86 states have call predecessors, (137), 88 states have call successors, (137) [2024-11-22 02:04:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 900 transitions. [2024-11-22 02:04:15,935 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 900 transitions. Word has length 57 [2024-11-22 02:04:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:15,935 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 900 transitions. [2024-11-22 02:04:15,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:04:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 900 transitions. [2024-11-22 02:04:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 02:04:15,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:15,940 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:15,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:04:15,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:15,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1923823151, now seen corresponding path program 1 times [2024-11-22 02:04:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:15,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423965991] [2024-11-22 02:04:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:16,025 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:04:16,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:16,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423965991] [2024-11-22 02:04:16,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423965991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:16,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277891311] [2024-11-22 02:04:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:16,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:16,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:16,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:04:16,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:04:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:16,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 02:04:16,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:16,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:04:16,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277891311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:16,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:04:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-11-22 02:04:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281810386] [2024-11-22 02:04:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:16,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:16,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:16,235 INFO L87 Difference]: Start difference. First operand 723 states and 900 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:16,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:16,293 INFO L93 Difference]: Finished difference Result 1497 states and 1907 transitions. [2024-11-22 02:04:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 100 [2024-11-22 02:04:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:16,300 INFO L225 Difference]: With dead ends: 1497 [2024-11-22 02:04:16,301 INFO L226 Difference]: Without dead ends: 938 [2024-11-22 02:04:16,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:16,303 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 34 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:16,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 257 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-22 02:04:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2024-11-22 02:04:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 710 states have (on average 1.2211267605633802) internal successors, (867), 759 states have internal predecessors, (867), 116 states have call successors, (116), 110 states have call predecessors, (116), 111 states have return successors, (191), 113 states have call predecessors, (191), 116 states have call successors, (191) [2024-11-22 02:04:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1174 transitions. [2024-11-22 02:04:16,360 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1174 transitions. Word has length 100 [2024-11-22 02:04:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:16,361 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1174 transitions. [2024-11-22 02:04:16,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1174 transitions. [2024-11-22 02:04:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:04:16,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:16,364 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:16,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:04:16,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:04:16,565 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:16,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2096512341, now seen corresponding path program 1 times [2024-11-22 02:04:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440651102] [2024-11-22 02:04:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 02:04:16,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440651102] [2024-11-22 02:04:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440651102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861444366] [2024-11-22 02:04:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:16,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:16,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:16,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:04:16,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:04:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:16,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:04:16,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 02:04:16,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:04:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861444366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:16,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:04:16,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-22 02:04:16,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465806580] [2024-11-22 02:04:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:16,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:04:16,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:04:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-22 02:04:16,957 INFO L87 Difference]: Start difference. First operand 938 states and 1174 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:17,094 INFO L93 Difference]: Finished difference Result 1868 states and 2340 transitions. [2024-11-22 02:04:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:04:17,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2024-11-22 02:04:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:17,098 INFO L225 Difference]: With dead ends: 1868 [2024-11-22 02:04:17,099 INFO L226 Difference]: Without dead ends: 938 [2024-11-22 02:04:17,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-22 02:04:17,101 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 70 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:17,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 648 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:17,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-22 02:04:17,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2024-11-22 02:04:17,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 710 states have (on average 1.204225352112676) internal successors, (855), 759 states have internal predecessors, (855), 116 states have call successors, (116), 110 states have call predecessors, (116), 111 states have return successors, (169), 113 states have call predecessors, (169), 116 states have call successors, (169) [2024-11-22 02:04:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1140 transitions. [2024-11-22 02:04:17,153 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1140 transitions. Word has length 104 [2024-11-22 02:04:17,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:17,153 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1140 transitions. [2024-11-22 02:04:17,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1140 transitions. [2024-11-22 02:04:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 02:04:17,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:17,156 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:17,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:04:17,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 02:04:17,359 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:17,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash 984940751, now seen corresponding path program 1 times [2024-11-22 02:04:17,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:17,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693491697] [2024-11-22 02:04:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:17,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:04:17,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693491697] [2024-11-22 02:04:17,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693491697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:17,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:17,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:04:17,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113158567] [2024-11-22 02:04:17,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:17,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:17,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:17,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:17,407 INFO L87 Difference]: Start difference. First operand 938 states and 1140 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 02:04:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:17,480 INFO L93 Difference]: Finished difference Result 1409 states and 1743 transitions. [2024-11-22 02:04:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2024-11-22 02:04:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:17,487 INFO L225 Difference]: With dead ends: 1409 [2024-11-22 02:04:17,487 INFO L226 Difference]: Without dead ends: 1407 [2024-11-22 02:04:17,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:17,490 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 68 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:17,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 200 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:17,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-22 02:04:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1100. [2024-11-22 02:04:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 837 states have (on average 1.2114695340501793) internal successors, (1014), 891 states have internal predecessors, (1014), 134 states have call successors, (134), 127 states have call predecessors, (134), 128 states have return successors, (214), 128 states have call predecessors, (214), 134 states have call successors, (214) [2024-11-22 02:04:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1362 transitions. [2024-11-22 02:04:17,552 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1362 transitions. Word has length 100 [2024-11-22 02:04:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:17,552 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1362 transitions. [2024-11-22 02:04:17,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 02:04:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1362 transitions. [2024-11-22 02:04:17,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 02:04:17,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:17,555 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:17,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:04:17,556 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:17,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1042607335, now seen corresponding path program 1 times [2024-11-22 02:04:17,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:17,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009195995] [2024-11-22 02:04:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:17,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:04:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009195995] [2024-11-22 02:04:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009195995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398505230] [2024-11-22 02:04:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:17,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:17,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:17,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:04:17,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:04:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:17,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 02:04:17,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 68 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:04:17,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:04:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:04:18,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398505230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:04:18,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:04:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-22 02:04:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132249547] [2024-11-22 02:04:18,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:04:18,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:04:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:04:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:04:18,124 INFO L87 Difference]: Start difference. First operand 1100 states and 1362 transitions. Second operand has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-22 02:04:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:18,519 INFO L93 Difference]: Finished difference Result 2688 states and 3452 transitions. [2024-11-22 02:04:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 02:04:18,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 142 [2024-11-22 02:04:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:18,530 INFO L225 Difference]: With dead ends: 2688 [2024-11-22 02:04:18,530 INFO L226 Difference]: Without dead ends: 1760 [2024-11-22 02:04:18,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:04:18,534 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 401 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:18,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 393 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:04:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-11-22 02:04:18,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1509. [2024-11-22 02:04:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1141 states have (on average 1.2120946538124453) internal successors, (1383), 1219 states have internal predecessors, (1383), 191 states have call successors, (191), 168 states have call predecessors, (191), 176 states have return successors, (331), 172 states have call predecessors, (331), 191 states have call successors, (331) [2024-11-22 02:04:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1905 transitions. [2024-11-22 02:04:18,627 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1905 transitions. Word has length 142 [2024-11-22 02:04:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:18,628 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1905 transitions. [2024-11-22 02:04:18,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-22 02:04:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1905 transitions. [2024-11-22 02:04:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 02:04:18,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:18,632 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:18,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:04:18,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:18,833 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:18,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash -343596059, now seen corresponding path program 1 times [2024-11-22 02:04:18,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:18,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094364663] [2024-11-22 02:04:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:18,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:04:19,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:19,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094364663] [2024-11-22 02:04:19,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094364663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:19,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344766274] [2024-11-22 02:04:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:19,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:19,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:04:19,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:04:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:19,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 02:04:19,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 82 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:04:19,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:04:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:04:19,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344766274] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:04:19,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:04:19,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 19 [2024-11-22 02:04:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239050048] [2024-11-22 02:04:19,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:04:19,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 02:04:19,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 02:04:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-22 02:04:19,492 INFO L87 Difference]: Start difference. First operand 1509 states and 1905 transitions. Second operand has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 19 states have internal predecessors, (158), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-22 02:04:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:20,422 INFO L93 Difference]: Finished difference Result 4092 states and 5420 transitions. [2024-11-22 02:04:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 02:04:20,423 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 19 states have internal predecessors, (158), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 142 [2024-11-22 02:04:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:20,436 INFO L225 Difference]: With dead ends: 4092 [2024-11-22 02:04:20,436 INFO L226 Difference]: Without dead ends: 2752 [2024-11-22 02:04:20,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 275 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2024-11-22 02:04:20,446 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 450 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:20,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1380 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:04:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2024-11-22 02:04:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2520. [2024-11-22 02:04:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 1906 states have (on average 1.2051416579223504) internal successors, (2297), 2019 states have internal predecessors, (2297), 323 states have call successors, (323), 293 states have call predecessors, (323), 290 states have return successors, (542), 284 states have call predecessors, (542), 323 states have call successors, (542) [2024-11-22 02:04:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3162 transitions. [2024-11-22 02:04:20,577 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3162 transitions. Word has length 142 [2024-11-22 02:04:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:20,577 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3162 transitions. [2024-11-22 02:04:20,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 19 states have internal predecessors, (158), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-22 02:04:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3162 transitions. [2024-11-22 02:04:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 02:04:20,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:20,581 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:20,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 02:04:20,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:20,782 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:20,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:20,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1075563485, now seen corresponding path program 1 times [2024-11-22 02:04:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:20,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875783367] [2024-11-22 02:04:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:20,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 02:04:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875783367] [2024-11-22 02:04:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875783367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:20,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:04:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480871045] [2024-11-22 02:04:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:20,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:04:20,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:20,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:04:20,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:20,887 INFO L87 Difference]: Start difference. First operand 2520 states and 3162 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:04:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:20,978 INFO L93 Difference]: Finished difference Result 3096 states and 3835 transitions. [2024-11-22 02:04:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:04:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 142 [2024-11-22 02:04:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:20,982 INFO L225 Difference]: With dead ends: 3096 [2024-11-22 02:04:20,982 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:04:20,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:20,991 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:20,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 597 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:04:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:04:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:04:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:04:20,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2024-11-22 02:04:20,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:20,994 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:04:20,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:04:20,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:04:20,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:04:20,997 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:04:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:04:21,000 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:21,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:04:26,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:04:26,767 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (<= 2 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 1 |old(~methaneLevelCritical~0)|) (<= 1 ~waterLevel~0)) (and .cse1 .cse2 .cse3 (not (= 0 ~systemActive~0))))) (or (not .cse2) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (<= 2 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 1 |old(~methaneLevelCritical~0)|) (<= 1 ~waterLevel~0)) (and .cse1 .cse2 .cse3 (not (= 0 ~systemActive~0))))) (or (not .cse2) (= ~methaneLevelCritical~0 0))))) [2024-11-22 02:04:26,771 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:04:26,781 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= 0 ~systemActive~0)) (.cse7 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse1 (not .cse7)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (not .cse2)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 .cse2 (and .cse3 .cse4)) (or .cse4 .cse2 (< ~methaneLevelCritical~0 1)) (or .cse1 .cse4 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse5) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse9 (<= 2 |old(~waterLevel~0)|)) (.cse10 (= ~methaneLevelCritical~0 0)) (.cse8 (<= 1 |old(~waterLevel~0)|))) (or (and .cse6 .cse7 .cse0 .cse8) (and .cse6 .cse0 .cse8 .cse2) (and .cse6 .cse7 .cse9 .cse5) (and .cse10 .cse0 .cse8 .cse2) (and .cse10 .cse9 .cse5) (and .cse10 .cse7 .cse0 .cse8)))))) Eliminated clause: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse8 (not .cse2))) (and (exists ((|old(~pumpRunning~0)| Int) (|old(~methAndRunningLastTime~0)| Int)) (let ((.cse10 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse1 (not .cse10)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 .cse2 (and .cse3 .cse4)) (or (not (= ~waterLevel~0 1)) .cse1 .cse4) (let ((.cse7 (<= 2 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse9 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0))) (or (and .cse5 .cse0 .cse6 .cse2) (and .cse5 .cse7 .cse8) (and .cse9 .cse10 .cse0 .cse6) (and .cse9 .cse7 .cse10 .cse8) (and .cse5 .cse10 .cse0 .cse6) (and .cse9 .cse0 .cse6 .cse2))))))) (or .cse4 .cse2 (< ~methaneLevelCritical~0 1)) (or .cse3 .cse8)))) [2024-11-22 02:04:26,795 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:04:26,810 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 (<= 1 ~waterLevel~0) .cse1) (and .cse2 .cse3 (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse3 .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) .cse0) (and .cse1 .cse2 (<= 2 ~waterLevel~0) .cse0) (and .cse1 .cse2 (= ~waterLevel~0 1) .cse0)))) [2024-11-22 02:04:26,815 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (<= 1 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and .cse2 .cse0 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse2 .cse0 .cse1 .cse3)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse1 .cse2 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))))) [2024-11-22 02:04:26,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:04:26 BoogieIcfgContainer [2024-11-22 02:04:26,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:04:26,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:04:26,821 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:04:26,821 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:04:26,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:13" (3/4) ... [2024-11-22 02:04:26,824 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:04:26,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-22 02:04:26,828 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:04:26,828 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:04:26,834 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-22 02:04:26,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:04:26,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:04:26,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:04:26,836 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:04:26,946 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:04:26,946 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:04:26,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:04:26,947 INFO L158 Benchmark]: Toolchain (without parser) took 13959.96ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 107.0MB in the beginning and 311.0MB in the end (delta: -204.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:04:26,947 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory was 132.6MB in the beginning and 132.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:04:26,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.01ms. Allocated memory is still 176.2MB. Free memory was 106.7MB in the beginning and 143.5MB in the end (delta: -36.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-22 02:04:26,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.34ms. Allocated memory is still 176.2MB. Free memory was 143.5MB in the beginning and 141.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:04:26,948 INFO L158 Benchmark]: Boogie Preprocessor took 42.30ms. Allocated memory is still 176.2MB. Free memory was 141.4MB in the beginning and 138.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:04:26,948 INFO L158 Benchmark]: RCFGBuilder took 417.30ms. Allocated memory is still 176.2MB. Free memory was 138.6MB in the beginning and 118.4MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 02:04:26,948 INFO L158 Benchmark]: TraceAbstraction took 12892.28ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 117.6MB in the beginning and 319.4MB in the end (delta: -201.7MB). Peak memory consumption was 194.2MB. Max. memory is 16.1GB. [2024-11-22 02:04:26,948 INFO L158 Benchmark]: Witness Printer took 125.10ms. Allocated memory is still 362.8MB. Free memory was 319.4MB in the beginning and 311.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:04:26,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory was 132.6MB in the beginning and 132.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.01ms. Allocated memory is still 176.2MB. Free memory was 106.7MB in the beginning and 143.5MB in the end (delta: -36.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.34ms. Allocated memory is still 176.2MB. Free memory was 143.5MB in the beginning and 141.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.30ms. Allocated memory is still 176.2MB. Free memory was 141.4MB in the beginning and 138.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.30ms. Allocated memory is still 176.2MB. Free memory was 138.6MB in the beginning and 118.4MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12892.28ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 117.6MB in the beginning and 319.4MB in the end (delta: -201.7MB). Peak memory consumption was 194.2MB. Max. memory is 16.1GB. * Witness Printer took 125.10ms. Allocated memory is still 362.8MB. Free memory was 319.4MB in the beginning and 311.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [160] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 273]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [273] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [308] - GenericResultAtLocation [Line: 379]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [379] - GenericResultAtLocation [Line: 745]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [745] - GenericResultAtLocation [Line: 987]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [987] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 165]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1506 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1474 mSDsluCounter, 6522 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4588 mSDsCounter, 356 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1934 IncrementalHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 356 mSolverCounterUnsat, 1934 mSDtfsCounter, 1934 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 886 GetRequests, 787 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2520occurred in iteration=14, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 805 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1606 NumberOfCodeBlocks, 1606 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 3593 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1546 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 21 InterpolantComputations, 13 PerfectInterpolantSequences, 759/885 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: 321]: Loop Invariant Derived loop invariant: (((((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 862]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (1 <= waterLevel)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && ((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (1 <= waterLevel)) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 777]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel)) && (0 != systemActive)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (waterLevel == 1)) && (0 != systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel)) && (0 != systemActive)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (waterLevel == 1)) && (0 != systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (0 != systemActive))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: ((((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (2 <= waterLevel))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (1 <= waterLevel))) || ((((methAndRunningLastTime == 0) && (\old(methaneLevelCritical) == 0)) && (2 <= waterLevel)) && (0 != systemActive))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 753]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((methAndRunningLastTime == 0) || (0 == systemActive)) || (methaneLevelCritical < 1)) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: ((((((((((((\old(pumpRunning) != 0) || (\old(waterLevel) < 2)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) || (0 == systemActive)) || (methaneLevelCritical < 1)) && (((((\old(waterLevel) < 2) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == ((long long) waterLevel + 1)))) || (0 == systemActive)) || (methaneLevelCritical < 1))) && ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && ((((((((methAndRunningLastTime == 0) && (\old(waterLevel) == ((long long) waterLevel + 1))) && (2 <= waterLevel)) || (\old(waterLevel) < 2)) || (methaneLevelCritical != 0)) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == ((long long) waterLevel + 1)))) || (0 == systemActive))) && ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (waterLevel == 1)) || (\old(waterLevel) != 1))) && ((((((\old(pumpRunning) != 0) || (\old(methAndRunningLastTime) != 0)) || (\old(waterLevel) < 2)) || (methaneLevelCritical != 0)) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) || (0 == systemActive))) && (((((((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) || ((((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) && (0 == systemActive))) || ((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (2 <= \old(waterLevel))) && (0 != systemActive))) || ((((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) && (0 == systemActive))) || (((methaneLevelCritical == 0) && (2 <= \old(waterLevel))) && (0 != systemActive))) || ((((methaneLevelCritical == 0) && (\old(methAndRunningLastTime) == 0)) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 172]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 96]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) Ensures: (((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) && (\result == methaneLevelCritical)) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 785]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (0 != systemActive))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (waterLevel == 1)) && (0 != systemActive)))) Ensures: (((((pumpRunning == 0) || (methaneLevelCritical < 1)) && ((waterLevel != 1) || (pumpRunning == 0))) && ((((((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) && (0 != systemActive)) || (((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (\old(pumpRunning) == 0)) && (0 != systemActive))) || (((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (\old(pumpRunning) == 0)) && (waterLevel == 1)) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 <= waterLevel)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 <= waterLevel))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && ((((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (2 <= \old(waterLevel))) && (0 != systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 <= \old(waterLevel)))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 <= \old(waterLevel))))) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:04:26,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE