./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product40.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_product40.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 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:03:52,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:03:53,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:03:53,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:03:53,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:03:53,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:03:53,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:03:53,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:03:53,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:03:53,043 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:03:53,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:03:53,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:03:53,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:03:53,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:03:53,045 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:03:53,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:03:53,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:03:53,046 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:03:53,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:03:53,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:03:53,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:03:53,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:03:53,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:03:53,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:03:53,055 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:03:53,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:03:53,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:03:53,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:03:53,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:03:53,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:03:53,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:03:53,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:03:53,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:03:53,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:03:53,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:03:53,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:03:53,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:03:53,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:03:53,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:03:53,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:03:53,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:03:53,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:03:53,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2024-11-22 02:03:53,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:03:53,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:03:53,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:03:53,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:03:53,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:03:53,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2024-11-22 02:03:54,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:03:55,020 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:03:55,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2024-11-22 02:03:55,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8576340b8/29a830d1b5c2430dafb753e73a7694e3/FLAGb2555779a [2024-11-22 02:03:55,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8576340b8/29a830d1b5c2430dafb753e73a7694e3 [2024-11-22 02:03:55,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:03:55,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:03:55,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:03:55,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:03:55,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:03:55,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef62702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55, skipping insertion in model container [2024-11-22 02:03:55,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:03:55,768 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_product40.cil.c[17002,17015] [2024-11-22 02:03:55,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:03:55,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:03:55,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2024-11-22 02:03:55,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] [2024-11-22 02:03:55,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] [2024-11-22 02:03:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] [2024-11-22 02:03:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] [2024-11-22 02:03:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] [2024-11-22 02:03:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] [2024-11-22 02:03:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] [2024-11-22 02:03:55,862 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_product40.cil.c[17002,17015] [2024-11-22 02:03:55,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:03:55,912 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:03:55,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55 WrapperNode [2024-11-22 02:03:55,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:03:55,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:03:55,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:03:55,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:03:55,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,961 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 200 [2024-11-22 02:03:55,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:03:55,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:03:55,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:03:55,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:03:55,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:55,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,009 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 02:03:56,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:03:56,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:03:56,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:03:56,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:03:56,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (1/1) ... [2024-11-22 02:03:56,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:03:56,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:03:56,118 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 02:03:56,126 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 02:03:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:03:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:03:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:03:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:03:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:03:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:03:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:03:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-22 02:03:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-22 02:03:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:03:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:03:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:03:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:03:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-22 02:03:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-22 02:03:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:03:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:03:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:03:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:03:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:03:56,348 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:03:56,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:03:56,743 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-22 02:03:56,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:03:56,778 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:03:56,778 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:03:56,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:56 BoogieIcfgContainer [2024-11-22 02:03:56,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:03:56,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:03:56,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:03:56,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:03:56,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:03:55" (1/3) ... [2024-11-22 02:03:56,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f36cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:56, skipping insertion in model container [2024-11-22 02:03:56,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:55" (2/3) ... [2024-11-22 02:03:56,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f36cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:56, skipping insertion in model container [2024-11-22 02:03:56,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:56" (3/3) ... [2024-11-22 02:03:56,799 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2024-11-22 02:03:56,822 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:03:56,823 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:03:56,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:03:56,899 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;@2e4e166a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:03:56,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:03:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 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 02:03:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 02:03:56,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:56,912 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 02:03:56,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:56,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1035852950, now seen corresponding path program 1 times [2024-11-22 02:03:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801186944] [2024-11-22 02:03:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:57,232 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 02:03:57,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:57,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801186944] [2024-11-22 02:03:57,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801186944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:57,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:57,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:03:57,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411042596] [2024-11-22 02:03:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:57,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:03:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:57,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:03:57,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:03:57,283 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 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 02:03:57,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:57,341 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2024-11-22 02:03:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:03:57,345 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 02:03:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:57,366 INFO L225 Difference]: With dead ends: 181 [2024-11-22 02:03:57,370 INFO L226 Difference]: Without dead ends: 86 [2024-11-22 02:03:57,377 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 02:03:57,380 INFO L432 NwaCegarLoop]: 120 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, 120 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 02:03:57,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:03:57,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-22 02:03:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-22 02:03:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 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 02:03:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-11-22 02:03:57,497 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2024-11-22 02:03:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:57,501 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-11-22 02:03:57,502 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 02:03:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-11-22 02:03:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 02:03:57,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:57,505 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 02:03:57,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:03:57,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:57,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1707158464, now seen corresponding path program 1 times [2024-11-22 02:03:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:57,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942121717] [2024-11-22 02:03:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:57,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:57,867 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 02:03:57,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942121717] [2024-11-22 02:03:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942121717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:57,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:57,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:03:57,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028754439] [2024-11-22 02:03:57,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:57,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:03:57,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:03:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:03:57,887 INFO L87 Difference]: Start difference. First operand 86 states and 111 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 02:03:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:57,921 INFO L93 Difference]: Finished difference Result 132 states and 170 transitions. [2024-11-22 02:03:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:03:57,922 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 02:03:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:57,923 INFO L225 Difference]: With dead ends: 132 [2024-11-22 02:03:57,925 INFO L226 Difference]: Without dead ends: 77 [2024-11-22 02:03:57,926 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 02:03:57,928 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 17 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 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 02:03:57,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:03:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-22 02:03:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-22 02:03:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 66 states have internal predecessors, (77), 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 02:03:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2024-11-22 02:03:57,955 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2024-11-22 02:03:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:57,956 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2024-11-22 02:03:57,961 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 02:03:57,963 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-11-22 02:03:57,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 02:03:57,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:57,965 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 02:03:57,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:03:57,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:57,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -969347747, now seen corresponding path program 1 times [2024-11-22 02:03:57,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:57,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577615359] [2024-11-22 02:03:57,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:57,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:58,315 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 02:03:58,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577615359] [2024-11-22 02:03:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577615359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:03:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448832066] [2024-11-22 02:03:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:58,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:03:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:03:58,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:03:58,323 INFO L87 Difference]: Start difference. First operand 77 states and 99 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 02:03:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:58,482 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2024-11-22 02:03:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:03:58,483 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 02:03:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:58,485 INFO L225 Difference]: With dead ends: 189 [2024-11-22 02:03:58,486 INFO L226 Difference]: Without dead ends: 120 [2024-11-22 02:03:58,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:03:58,494 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 92 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 383 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 02:03:58,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 383 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:03:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-22 02:03:58,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2024-11-22 02:03:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 99 states have internal predecessors, (119), 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 02:03:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2024-11-22 02:03:58,551 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 31 [2024-11-22 02:03:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:58,552 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2024-11-22 02:03:58,556 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 02:03:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2024-11-22 02:03:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-22 02:03:58,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:58,558 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 02:03:58,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:03:58,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:58,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash -595617824, now seen corresponding path program 1 times [2024-11-22 02:03:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236561181] [2024-11-22 02:03:58,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:58,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:58,793 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 02:03:58,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:58,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236561181] [2024-11-22 02:03:58,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236561181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:58,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:03:58,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207913979] [2024-11-22 02:03:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:58,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:03:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:03:58,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:03:58,802 INFO L87 Difference]: Start difference. First operand 117 states and 152 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 02:03:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:59,006 INFO L93 Difference]: Finished difference Result 261 states and 349 transitions. [2024-11-22 02:03:59,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:03:59,007 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 02:03:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:59,009 INFO L225 Difference]: With dead ends: 261 [2024-11-22 02:03:59,010 INFO L226 Difference]: Without dead ends: 152 [2024-11-22 02:03:59,017 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 02:03:59,019 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 69 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 348 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 02:03:59,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 348 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:03:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-22 02:03:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2024-11-22 02:03:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.2894736842105263) internal successors, (147), 124 states have internal predecessors, (147), 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 02:03:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 191 transitions. [2024-11-22 02:03:59,081 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 191 transitions. Word has length 34 [2024-11-22 02:03:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:59,083 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 191 transitions. [2024-11-22 02:03:59,086 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 02:03:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 191 transitions. [2024-11-22 02:03:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 02:03:59,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:59,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:03:59,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:03:59,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:59,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 534895005, now seen corresponding path program 1 times [2024-11-22 02:03:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:59,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93892142] [2024-11-22 02:03:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:59,215 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 02:03:59,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:59,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93892142] [2024-11-22 02:03:59,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93892142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:59,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:59,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:03:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175608269] [2024-11-22 02:03:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:59,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:03:59,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:03:59,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:03:59,229 INFO L87 Difference]: Start difference. First operand 151 states and 191 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:03:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:59,288 INFO L93 Difference]: Finished difference Result 296 states and 376 transitions. [2024-11-22 02:03:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:03:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-11-22 02:03:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:59,292 INFO L225 Difference]: With dead ends: 296 [2024-11-22 02:03:59,295 INFO L226 Difference]: Without dead ends: 153 [2024-11-22 02:03:59,296 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 02:03:59,300 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 37 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 218 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 02:03:59,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:03:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-22 02:03:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2024-11-22 02:03:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.280701754385965) internal successors, (146), 124 states have internal predecessors, (146), 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 02:03:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 188 transitions. [2024-11-22 02:03:59,353 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 188 transitions. Word has length 48 [2024-11-22 02:03:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:59,353 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 188 transitions. [2024-11-22 02:03:59,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:03:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 188 transitions. [2024-11-22 02:03:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 02:03:59,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:59,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:03:59,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:03:59,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:59,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash -867872678, now seen corresponding path program 1 times [2024-11-22 02:03:59,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:59,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146247264] [2024-11-22 02:03:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:59,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:59,570 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 02:03:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146247264] [2024-11-22 02:03:59,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146247264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:59,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:59,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:03:59,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071240017] [2024-11-22 02:03:59,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:59,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:03:59,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:59,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:03:59,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:03:59,579 INFO L87 Difference]: Start difference. First operand 151 states and 188 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:03:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:03:59,642 INFO L93 Difference]: Finished difference Result 297 states and 376 transitions. [2024-11-22 02:03:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:03:59,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-22 02:03:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:03:59,649 INFO L225 Difference]: With dead ends: 297 [2024-11-22 02:03:59,650 INFO L226 Difference]: Without dead ends: 154 [2024-11-22 02:03:59,651 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 02:03:59,652 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 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 02:03:59,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:03:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-22 02:03:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-22 02:03:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 127 states have internal predecessors, (149), 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 02:03:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 191 transitions. [2024-11-22 02:03:59,700 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 191 transitions. Word has length 45 [2024-11-22 02:03:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:03:59,705 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 191 transitions. [2024-11-22 02:03:59,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:03:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 191 transitions. [2024-11-22 02:03:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 02:03:59,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:03:59,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:03:59,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:03:59,707 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:03:59,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:03:59,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1738150876, now seen corresponding path program 1 times [2024-11-22 02:03:59,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:03:59,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895647553] [2024-11-22 02:03:59,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:03:59,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:03:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:03:59,954 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 02:03:59,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:03:59,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895647553] [2024-11-22 02:03:59,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895647553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:03:59,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:03:59,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:03:59,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991273287] [2024-11-22 02:03:59,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:03:59,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:03:59,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:03:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:03:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:03:59,963 INFO L87 Difference]: Start difference. First operand 154 states and 191 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:04:00,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:00,035 INFO L93 Difference]: Finished difference Result 302 states and 385 transitions. [2024-11-22 02:04:00,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:04:00,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-22 02:04:00,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:00,038 INFO L225 Difference]: With dead ends: 302 [2024-11-22 02:04:00,039 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 02:04:00,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:04:00,044 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:00,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 02:04:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-22 02:04:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.26890756302521) internal successors, (151), 129 states have internal predecessors, (151), 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 02:04:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2024-11-22 02:04:00,079 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 45 [2024-11-22 02:04:00,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:00,079 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2024-11-22 02:04:00,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:04:00,080 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2024-11-22 02:04:00,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 02:04:00,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:00,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:00,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:04:00,081 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:00,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:00,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2134114594, now seen corresponding path program 1 times [2024-11-22 02:04:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:00,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722066576] [2024-11-22 02:04:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:00,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:00,223 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 02:04:00,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:00,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722066576] [2024-11-22 02:04:00,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722066576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:00,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:00,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:04:00,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132780761] [2024-11-22 02:04:00,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:00,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:04:00,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:00,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:04:00,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:04:00,231 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:04:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:00,378 INFO L93 Difference]: Finished difference Result 526 states and 672 transitions. [2024-11-22 02:04:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:04:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-22 02:04:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:00,386 INFO L225 Difference]: With dead ends: 526 [2024-11-22 02:04:00,390 INFO L226 Difference]: Without dead ends: 378 [2024-11-22 02:04:00,391 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 02:04:00,391 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 129 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:00,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 323 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:00,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-22 02:04:00,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 369. [2024-11-22 02:04:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 281 states have (on average 1.2491103202846976) internal successors, (351), 301 states have internal predecessors, (351), 45 states have call successors, (45), 41 states have call predecessors, (45), 42 states have return successors, (64), 44 states have call predecessors, (64), 45 states have call successors, (64) [2024-11-22 02:04:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 460 transitions. [2024-11-22 02:04:00,450 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 460 transitions. Word has length 45 [2024-11-22 02:04:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:00,451 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 460 transitions. [2024-11-22 02:04:00,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:04:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 460 transitions. [2024-11-22 02:04:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-22 02:04:00,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:00,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:00,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:04:00,452 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:00,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash -566907772, now seen corresponding path program 1 times [2024-11-22 02:04:00,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:00,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319848835] [2024-11-22 02:04:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:00,569 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 02:04:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:00,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319848835] [2024-11-22 02:04:00,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319848835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:00,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:04:00,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:04:00,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668565478] [2024-11-22 02:04:00,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:00,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:00,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:04:00,573 INFO L87 Difference]: Start difference. First operand 369 states and 460 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 02:04:00,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:00,604 INFO L93 Difference]: Finished difference Result 566 states and 721 transitions. [2024-11-22 02:04:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:00,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-11-22 02:04:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:00,607 INFO L225 Difference]: With dead ends: 566 [2024-11-22 02:04:00,608 INFO L226 Difference]: Without dead ends: 564 [2024-11-22 02:04:00,608 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 02:04:00,610 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 70 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:00,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 185 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-22 02:04:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 504. [2024-11-22 02:04:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 383 states have (on average 1.2558746736292428) internal successors, (481), 410 states have internal predecessors, (481), 62 states have call successors, (62), 56 states have call predecessors, (62), 58 states have return successors, (105), 60 states have call predecessors, (105), 62 states have call successors, (105) [2024-11-22 02:04:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 648 transitions. [2024-11-22 02:04:00,652 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 648 transitions. Word has length 49 [2024-11-22 02:04:00,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:00,653 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 648 transitions. [2024-11-22 02:04:00,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 02:04:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 648 transitions. [2024-11-22 02:04:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 02:04:00,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:00,657 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 02:04:00,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:04:00,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:00,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1187985508, now seen corresponding path program 1 times [2024-11-22 02:04:00,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:00,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659550938] [2024-11-22 02:04:00,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:00,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:04:00,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:00,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659550938] [2024-11-22 02:04:00,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659550938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:00,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632074720] [2024-11-22 02:04:00,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:00,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:00,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:00,752 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 02:04:00,754 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 02:04:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:00,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 02:04:00,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:04:00,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:04:00,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632074720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:00,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:04:00,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 02:04:00,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246184088] [2024-11-22 02:04:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:00,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:04:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:04:00,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:00,910 INFO L87 Difference]: Start difference. First operand 504 states and 648 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 02:04:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:00,955 INFO L93 Difference]: Finished difference Result 882 states and 1167 transitions. [2024-11-22 02:04:00,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:04:00,959 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), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2024-11-22 02:04:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:00,963 INFO L225 Difference]: With dead ends: 882 [2024-11-22 02:04:00,963 INFO L226 Difference]: Without dead ends: 466 [2024-11-22 02:04:00,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:04:00,965 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 41 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:00,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 207 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:04:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-22 02:04:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 348. [2024-11-22 02:04:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 262 states have (on average 1.217557251908397) internal successors, (319), 280 states have internal predecessors, (319), 44 states have call successors, (44), 39 states have call predecessors, (44), 41 states have return successors, (57), 41 states have call predecessors, (57), 44 states have call successors, (57) [2024-11-22 02:04:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 420 transitions. [2024-11-22 02:04:00,993 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 420 transitions. Word has length 88 [2024-11-22 02:04:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:00,994 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 420 transitions. [2024-11-22 02:04:00,994 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), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 02:04:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 420 transitions. [2024-11-22 02:04:00,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 02:04:00,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:00,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:01,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 02:04:01,200 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 02:04:01,201 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:01,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:01,201 INFO L85 PathProgramCache]: Analyzing trace with hash -859541599, now seen corresponding path program 1 times [2024-11-22 02:04:01,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:01,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136363642] [2024-11-22 02:04:01,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:01,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 02:04:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136363642] [2024-11-22 02:04:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136363642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335665197] [2024-11-22 02:04:01,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:01,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:01,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:01,317 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 02:04:01,318 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 02:04:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:01,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 02:04:01,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:01,576 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 02:04:01,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:04:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:04:01,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335665197] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:01,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 02:04:01,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5] total 14 [2024-11-22 02:04:01,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653514851] [2024-11-22 02:04:01,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:01,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:04:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:01,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:04:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:04:01,715 INFO L87 Difference]: Start difference. First operand 348 states and 420 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:04:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:01,821 INFO L93 Difference]: Finished difference Result 988 states and 1218 transitions. [2024-11-22 02:04:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:04:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-22 02:04:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:01,824 INFO L225 Difference]: With dead ends: 988 [2024-11-22 02:04:01,824 INFO L226 Difference]: Without dead ends: 648 [2024-11-22 02:04:01,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-22 02:04:01,826 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 57 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:01,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 440 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:04:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-22 02:04:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 623. [2024-11-22 02:04:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 464 states have (on average 1.1939655172413792) internal successors, (554), 497 states have internal predecessors, (554), 82 states have call successors, (82), 73 states have call predecessors, (82), 76 states have return successors, (109), 75 states have call predecessors, (109), 82 states have call successors, (109) [2024-11-22 02:04:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 745 transitions. [2024-11-22 02:04:01,858 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 745 transitions. Word has length 93 [2024-11-22 02:04:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:01,858 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 745 transitions. [2024-11-22 02:04:01,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:04:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 745 transitions. [2024-11-22 02:04:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 02:04:01,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:04:01,860 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:01,867 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 02:04:02,064 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 02:04:02,065 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:04:02,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:04:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1099123803, now seen corresponding path program 1 times [2024-11-22 02:04:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:04:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580008093] [2024-11-22 02:04:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:02,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:04:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:04:02,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:04:02,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580008093] [2024-11-22 02:04:02,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580008093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:04:02,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23357867] [2024-11-22 02:04:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:04:02,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:04:02,176 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 02:04:02,181 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 02:04:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:04:02,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:04:02,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:04:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 02:04:02,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:04:02,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23357867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:04:02,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:04:02,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 02:04:02,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206849695] [2024-11-22 02:04:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:04:02,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:04:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:04:02,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:04:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:04:02,792 INFO L87 Difference]: Start difference. First operand 623 states and 745 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:04:03,194 INFO L93 Difference]: Finished difference Result 1174 states and 1410 transitions. [2024-11-22 02:04:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:04:03,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2024-11-22 02:04:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:04:03,199 INFO L225 Difference]: With dead ends: 1174 [2024-11-22 02:04:03,199 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:04:03,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-22 02:04:03,206 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 34 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:04:03,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 798 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:04:03,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:04:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:04:03,206 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 02:04:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:04:03,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-22 02:04:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:04:03,212 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:04:03,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 02:04:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:04:03,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:04:03,220 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:04:03,241 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 02:04:03,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:04:03,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:04:03,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:04:10,997 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:04:11,032 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (<= 1 ~pumpRunning~0) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1)))) Eliminated clause: (and (<= 1 ~pumpRunning~0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0)))) [2024-11-22 02:04:11,068 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse5 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse3 .cse4 .cse5 .cse2) (and .cse3 .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse1 .cse6) (and .cse0 .cse4 .cse5 .cse2)))) (or (not .cse5) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse5 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse3 .cse4 .cse5 .cse2) (and .cse3 .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse1 .cse6) (and .cse0 .cse4 .cse5 .cse2)))) (or (not .cse5) (= ~methaneLevelCritical~0 0))))) [2024-11-22 02:04:11,086 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:04:11,106 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse7 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0)) (.cse9 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse0 (not .cse9)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse6 (not .cse2)) (.cse3 (not .cse7)) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse11 (= ~waterLevel~0 1))) (and (or (<= 1 ~pumpRunning~0) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2) (or .cse3 (= ~pumpRunning~0 0)) (let ((.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= 1 |old(~pumpRunning~0)|)) (.cse8 (= ~methaneLevelCritical~0 0))) (or (and .cse4 .cse5 .cse6) (and .cse4 .cse7 .cse2) (and .cse8 .cse9 .cse7 .cse6) (and .cse4 .cse9 .cse7 .cse6) (and .cse8 .cse5 .cse6) (and .cse8 .cse7 .cse2))) (or .cse0 .cse10 (and .cse1 .cse11) .cse6) (or .cse3 .cse10 .cse2 .cse11)))) Eliminated clause: (exists ((|old(~methAndRunningLastTime~0)| Int) (|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse7 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0)) (.cse9 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse0 (not .cse9)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse6 (not .cse2)) (.cse3 (not .cse7)) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse11 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 (= ~pumpRunning~0 0)) (let ((.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= 1 |old(~pumpRunning~0)|)) (.cse8 (= ~methaneLevelCritical~0 0))) (or (and .cse4 .cse5 .cse6) (and .cse4 .cse7 .cse2) (and .cse8 .cse9 .cse7 .cse6) (and .cse4 .cse9 .cse7 .cse6) (and .cse8 .cse5 .cse6) (and .cse8 .cse7 .cse2))) (or (< 0 ~pumpRunning~0) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse10 (and .cse1 .cse11) .cse6) (or .cse3 .cse10 .cse2 .cse11))))) [2024-11-22 02:04:11,130 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:04:11,156 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (<= 1 ~pumpRunning~0) (< |old(~pumpRunning~0)| 1)) (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse1 (<= 1 |old(~pumpRunning~0)|) .cse2) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse2) (and .cse3 .cse1 .cse0 .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse1 (<= 1 |old(~pumpRunning~0)|) .cse2) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse2) (and .cse3 .cse1 .cse0 .cse2))) (or (< 0 ~pumpRunning~0) (< |old(~pumpRunning~0)| 1))))) [2024-11-22 02:04:11,168 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:04:11,179 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= ~pumpRunning~0 0))) (and (or (not .cse0) (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse1 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse4 (not .cse6)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse4) (and .cse0 .cse2 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6)))))) Eliminated clause: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse3 (not .cse6)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse3) (and .cse4 .cse1 .cse5 .cse6) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse5 .cse3) (and .cse4 .cse1 .cse2 .cse6)))) [2024-11-22 02:04:11,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:04:11 BoogieIcfgContainer [2024-11-22 02:04:11,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:04:11,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:04:11,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:04:11,197 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:04:11,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:56" (3/4) ... [2024-11-22 02:04:11,202 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:04:11,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-22 02:04:11,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:04:11,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:04:11,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:04:11,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:04:11,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-22 02:04:11,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:04:11,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:04:11,218 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-22 02:04:11,219 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:04:11,219 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:04:11,220 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:04:11,220 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:04:11,366 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:04:11,366 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:04:11,367 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:04:11,367 INFO L158 Benchmark]: Toolchain (without parser) took 15960.43ms. Allocated memory was 184.5MB in the beginning and 364.9MB in the end (delta: 180.4MB). Free memory was 124.2MB in the beginning and 214.6MB in the end (delta: -90.3MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,368 INFO L158 Benchmark]: CDTParser took 1.87ms. Allocated memory is still 184.5MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:04:11,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.39ms. Allocated memory is still 184.5MB. Free memory was 124.2MB in the beginning and 102.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.37ms. Allocated memory is still 184.5MB. Free memory was 102.8MB in the beginning and 100.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,369 INFO L158 Benchmark]: Boogie Preprocessor took 90.57ms. Allocated memory is still 184.5MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,369 INFO L158 Benchmark]: RCFGBuilder took 730.24ms. Allocated memory is still 184.5MB. Free memory was 97.8MB in the beginning and 79.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,369 INFO L158 Benchmark]: TraceAbstraction took 14409.38ms. Allocated memory was 184.5MB in the beginning and 364.9MB in the end (delta: 180.4MB). Free memory was 78.9MB in the beginning and 223.0MB in the end (delta: -144.0MB). Peak memory consumption was 148.7MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,370 INFO L158 Benchmark]: Witness Printer took 170.50ms. Allocated memory is still 364.9MB. Free memory was 223.0MB in the beginning and 214.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:04:11,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.87ms. Allocated memory is still 184.5MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.39ms. Allocated memory is still 184.5MB. Free memory was 124.2MB in the beginning and 102.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.37ms. Allocated memory is still 184.5MB. Free memory was 102.8MB in the beginning and 100.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.57ms. Allocated memory is still 184.5MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 730.24ms. Allocated memory is still 184.5MB. Free memory was 97.8MB in the beginning and 79.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14409.38ms. Allocated memory was 184.5MB in the beginning and 364.9MB in the end (delta: 180.4MB). Free memory was 78.9MB in the beginning and 223.0MB in the end (delta: -144.0MB). Peak memory consumption was 148.7MB. Max. memory is 16.1GB. * Witness Printer took 170.50ms. Allocated memory is still 364.9MB. Free memory was 223.0MB in the beginning and 214.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] - GenericResultAtLocation [Line: 264]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] - GenericResultAtLocation [Line: 468]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] - GenericResultAtLocation [Line: 834]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] - GenericResultAtLocation [Line: 943]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 839]: 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, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 552 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 546 mSDsluCounter, 4041 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2634 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 1407 mSDtfsCounter, 265 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 447 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=623occurred in iteration=11, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 218 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 981 ConstructedInterpolants, 0 QuantifiedInterpolants, 1846 SizeOfPredicates, 3 NumberOfNonLiveVariables, 940 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 231/242 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: 206]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 != systemActive)) || (((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 != systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 != systemActive))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 205]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 362]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 <= pumpRunning) && (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive)))) Ensures: (((pumpRunning == 0) && ((((1 <= methaneLevelCritical) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((methaneLevelCritical == 0) && (1 <= \old(pumpRunning))) && (0 != systemActive)))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 295]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 != systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive))) Ensures: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 != systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive))) && (((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 124]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((((1 <= pumpRunning) && (1 <= \old(methaneLevelCritical))) && (0 != systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (0 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (0 != systemActive)))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 845]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 271]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((((methAndRunningLastTime == 0) || (methaneLevelCritical != 0)) && ((((((((1 <= methaneLevelCritical) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 == systemActive))) || ((((methaneLevelCritical == 0) && (\old(methAndRunningLastTime) == 0)) && (\old(pumpRunning) == 0)) && (0 != systemActive))) || ((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (\old(pumpRunning) == 0)) && (0 != systemActive))) || (((methaneLevelCritical == 0) && (1 <= \old(pumpRunning))) && (0 != systemActive))) || (((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (0 == systemActive)))) && ((0 != systemActive) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && ((((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || (0 == systemActive)) || (waterLevel == 1))) && ((((\old(pumpRunning) < 1) || (0 == systemActive)) || (methaneLevelCritical < 1)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && ((((\old(pumpRunning) != 0) || (0 == systemActive)) || ((1 <= pumpRunning) && (waterLevel != 1))) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && ((((0 < pumpRunning) || (\old(pumpRunning) < 1)) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && ((((\old(methAndRunningLastTime) != 0) || (\old(waterLevel) != 1)) || (waterLevel == 1)) || (0 != systemActive))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 136]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (0 != systemActive)) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 != systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((methaneLevelCritical <= \result) && ((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (0 != systemActive)) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 != systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (0 != systemActive)))) && ((methaneLevelCritical != 0) || (\result == 0))) && (((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 303]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (waterLevel != 1))) && (((((methaneLevelCritical == 0) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (\old(pumpRunning) == 0)) && (0 != systemActive))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (\old(pumpRunning) == 0)) && (0 != systemActive)))) && ((0 < pumpRunning) || (\old(pumpRunning) < 1))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 112]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 == systemActive))) Ensures: (((((((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 != systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 == systemActive))) && (((waterLevel != 1) || (pumpRunning != 0)) || (\old(waterLevel) != 1))) && ((((((methAndRunningLastTime == \old(methAndRunningLastTime)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:04:11,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE