./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:42:59,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:42:59,839 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:42:59,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:42:59,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:42:59,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:42:59,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:42:59,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:42:59,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:42:59,878 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:42:59,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:42:59,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:42:59,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:42:59,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:42:59,882 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:42:59,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:42:59,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:42:59,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:42:59,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:42:59,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:42:59,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:42:59,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:42:59,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:42:59,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:42:59,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:42:59,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:42:59,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:42:59,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:42:59,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:42:59,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:42:59,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:42:59,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:42:59,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:42:59,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:42:59,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:42:59,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:42:59,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:42:59,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:42:59,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:42:59,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:42:59,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:42:59,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:42:59,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c [2024-10-12 19:43:00,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:43:00,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:43:00,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:43:00,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:43:00,160 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:43:00,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2024-10-12 19:43:01,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:43:01,930 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:43:01,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2024-10-12 19:43:01,952 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6bfd600/45b34b524f274462a57bb2cac69fe372/FLAG30fa1bf88 [2024-10-12 19:43:02,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6bfd600/45b34b524f274462a57bb2cac69fe372 [2024-10-12 19:43:02,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:43:02,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:43:02,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:43:02,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:43:02,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:43:02,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a72eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02, skipping insertion in model container [2024-10-12 19:43:02,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:43:02,595 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2024-10-12 19:43:02,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:43:02,702 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:43:02,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-10-12 19:43:02,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] [2024-10-12 19:43:02,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [418] [2024-10-12 19:43:02,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [488] [2024-10-12 19:43:02,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [526] [2024-10-12 19:43:02,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [535] [2024-10-12 19:43:02,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [584] [2024-10-12 19:43:02,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [950] [2024-10-12 19:43:02,737 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2024-10-12 19:43:02,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:43:02,792 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:43:02,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02 WrapperNode [2024-10-12 19:43:02,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:43:02,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:43:02,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:43:02,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:43:02,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,861 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 241 [2024-10-12 19:43:02,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:43:02,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:43:02,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:43:02,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:43:02,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,901 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 19:43:02,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:43:02,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:43:02,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:43:02,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:43:02,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (1/1) ... [2024-10-12 19:43:02,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:43:02,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:43:02,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 19:43:02,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 19:43:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:43:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:43:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:43:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:43:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:43:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:43:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:43:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:43:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:43:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-12 19:43:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-12 19:43:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-12 19:43:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-12 19:43:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-12 19:43:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-12 19:43:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:43:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:43:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:43:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:43:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:43:03,108 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:43:03,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:43:03,394 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-12 19:43:03,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:43:03,475 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:43:03,476 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:43:03,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:03 BoogieIcfgContainer [2024-10-12 19:43:03,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:43:03,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:43:03,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:43:03,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:43:03,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:43:02" (1/3) ... [2024-10-12 19:43:03,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105acf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:43:03, skipping insertion in model container [2024-10-12 19:43:03,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:02" (2/3) ... [2024-10-12 19:43:03,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105acf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:43:03, skipping insertion in model container [2024-10-12 19:43:03,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:03" (3/3) ... [2024-10-12 19:43:03,486 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2024-10-12 19:43:03,513 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:43:03,514 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:43:03,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:43:03,600 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;@29ae783f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:43:03,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:43:03,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 57 states have (on average 1.5263157894736843) internal successors, (87), 68 states have internal predecessors, (87), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-12 19:43:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-12 19:43:03,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:03,617 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:43:03,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:03,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:03,622 INFO L85 PathProgramCache]: Analyzing trace with hash 854361438, now seen corresponding path program 1 times [2024-10-12 19:43:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:03,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928059337] [2024-10-12 19:43:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:03,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:03,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:43:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928059337] [2024-10-12 19:43:03,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928059337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:03,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:03,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:43:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435622224] [2024-10-12 19:43:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:03,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:43:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:43:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:43:03,846 INFO L87 Difference]: Start difference. First operand has 85 states, 57 states have (on average 1.5263157894736843) internal successors, (87), 68 states have internal predecessors, (87), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:03,925 INFO L93 Difference]: Finished difference Result 168 states and 243 transitions. [2024-10-12 19:43:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:43:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-10-12 19:43:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:03,940 INFO L225 Difference]: With dead ends: 168 [2024-10-12 19:43:03,941 INFO L226 Difference]: Without dead ends: 80 [2024-10-12 19:43:03,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:43:03,950 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:03,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:43:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-12 19:43:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-12 19:43:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 64 states have internal predecessors, (77), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-12 19:43:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 110 transitions. [2024-10-12 19:43:03,988 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 110 transitions. Word has length 22 [2024-10-12 19:43:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:03,988 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 110 transitions. [2024-10-12 19:43:03,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 110 transitions. [2024-10-12 19:43:03,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 19:43:03,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:03,991 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:43:03,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:43:03,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:03,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1532484765, now seen corresponding path program 1 times [2024-10-12 19:43:03,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:03,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224561268] [2024-10-12 19:43:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:43:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:04,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:04,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224561268] [2024-10-12 19:43:04,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224561268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:04,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:04,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:43:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124434205] [2024-10-12 19:43:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:04,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:43:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:43:04,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:04,122 INFO L87 Difference]: Start difference. First operand 80 states and 110 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:04,180 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2024-10-12 19:43:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:43:04,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-10-12 19:43:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:04,185 INFO L225 Difference]: With dead ends: 130 [2024-10-12 19:43:04,185 INFO L226 Difference]: Without dead ends: 72 [2024-10-12 19:43:04,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:04,187 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:04,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 152 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:43:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-12 19:43:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-12 19:43:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 59 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-12 19:43:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2024-10-12 19:43:04,207 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 23 [2024-10-12 19:43:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:04,207 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2024-10-12 19:43:04,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2024-10-12 19:43:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-12 19:43:04,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:04,209 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:04,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:43:04,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:04,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1076188903, now seen corresponding path program 1 times [2024-10-12 19:43:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:04,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959347161] [2024-10-12 19:43:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-12 19:43:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:04,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:04,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959347161] [2024-10-12 19:43:04,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959347161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:04,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:04,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:43:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199210257] [2024-10-12 19:43:04,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:04,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:43:04,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:04,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:43:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:04,333 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:43:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:04,414 INFO L93 Difference]: Finished difference Result 212 states and 294 transitions. [2024-10-12 19:43:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:43:04,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-10-12 19:43:04,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:04,418 INFO L225 Difference]: With dead ends: 212 [2024-10-12 19:43:04,418 INFO L226 Difference]: Without dead ends: 142 [2024-10-12 19:43:04,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:04,420 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 90 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:04,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 178 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:43:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-12 19:43:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2024-10-12 19:43:04,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 113 states have internal predecessors, (137), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-12 19:43:04,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 193 transitions. [2024-10-12 19:43:04,439 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 193 transitions. Word has length 26 [2024-10-12 19:43:04,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:04,440 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 193 transitions. [2024-10-12 19:43:04,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:43:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 193 transitions. [2024-10-12 19:43:04,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-12 19:43:04,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:04,442 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:04,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:43:04,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:04,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:04,443 INFO L85 PathProgramCache]: Analyzing trace with hash 439230069, now seen corresponding path program 1 times [2024-10-12 19:43:04,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:04,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072125480] [2024-10-12 19:43:04,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:04,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:43:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:43:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 19:43:04,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:04,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072125480] [2024-10-12 19:43:04,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072125480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:04,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:04,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:43:04,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065181828] [2024-10-12 19:43:04,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:04,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:43:04,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:43:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:43:04,602 INFO L87 Difference]: Start difference. First operand 139 states and 193 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:04,846 INFO L93 Difference]: Finished difference Result 364 states and 517 transitions. [2024-10-12 19:43:04,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:43:04,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-10-12 19:43:04,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:04,849 INFO L225 Difference]: With dead ends: 364 [2024-10-12 19:43:04,849 INFO L226 Difference]: Without dead ends: 227 [2024-10-12 19:43:04,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:43:04,855 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 51 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:04,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 374 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-12 19:43:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2024-10-12 19:43:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 157 states have (on average 1.3694267515923566) internal successors, (215), 174 states have internal predecessors, (215), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2024-10-12 19:43:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 303 transitions. [2024-10-12 19:43:04,902 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 303 transitions. Word has length 29 [2024-10-12 19:43:04,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:04,902 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 303 transitions. [2024-10-12 19:43:04,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:43:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 303 transitions. [2024-10-12 19:43:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-12 19:43:04,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:04,906 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:04,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:43:04,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:04,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:04,907 INFO L85 PathProgramCache]: Analyzing trace with hash 112415171, now seen corresponding path program 1 times [2024-10-12 19:43:04,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:04,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707013189] [2024-10-12 19:43:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:04,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:43:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:05,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:05,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707013189] [2024-10-12 19:43:05,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707013189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:05,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:05,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:43:05,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676388795] [2024-10-12 19:43:05,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:05,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:43:05,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:43:05,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:43:05,082 INFO L87 Difference]: Start difference. First operand 226 states and 303 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 19:43:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:05,359 INFO L93 Difference]: Finished difference Result 682 states and 957 transitions. [2024-10-12 19:43:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:43:05,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-10-12 19:43:05,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:05,368 INFO L225 Difference]: With dead ends: 682 [2024-10-12 19:43:05,369 INFO L226 Difference]: Without dead ends: 458 [2024-10-12 19:43:05,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:43:05,371 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 139 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:05,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 291 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-10-12 19:43:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 450. [2024-10-12 19:43:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 317 states have (on average 1.3217665615141956) internal successors, (419), 339 states have internal predecessors, (419), 69 states have call successors, (69), 53 states have call predecessors, (69), 63 states have return successors, (107), 72 states have call predecessors, (107), 69 states have call successors, (107) [2024-10-12 19:43:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 595 transitions. [2024-10-12 19:43:05,445 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 595 transitions. Word has length 43 [2024-10-12 19:43:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:05,445 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 595 transitions. [2024-10-12 19:43:05,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 19:43:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 595 transitions. [2024-10-12 19:43:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-12 19:43:05,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:05,450 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:05,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:43:05,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:05,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1801358913, now seen corresponding path program 1 times [2024-10-12 19:43:05,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:05,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363984283] [2024-10-12 19:43:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:05,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:43:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:05,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363984283] [2024-10-12 19:43:05,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363984283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:05,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:05,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:43:05,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441328451] [2024-10-12 19:43:05,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:05,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:43:05,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:05,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:43:05,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:43:05,530 INFO L87 Difference]: Start difference. First operand 450 states and 595 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 19:43:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:05,692 INFO L93 Difference]: Finished difference Result 908 states and 1223 transitions. [2024-10-12 19:43:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:43:05,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-12 19:43:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:05,696 INFO L225 Difference]: With dead ends: 908 [2024-10-12 19:43:05,697 INFO L226 Difference]: Without dead ends: 460 [2024-10-12 19:43:05,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:05,699 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:05,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 235 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:43:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-10-12 19:43:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 458. [2024-10-12 19:43:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 325 states have (on average 1.3138461538461539) internal successors, (427), 347 states have internal predecessors, (427), 69 states have call successors, (69), 53 states have call predecessors, (69), 63 states have return successors, (107), 72 states have call predecessors, (107), 69 states have call successors, (107) [2024-10-12 19:43:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 603 transitions. [2024-10-12 19:43:05,744 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 603 transitions. Word has length 43 [2024-10-12 19:43:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:05,746 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 603 transitions. [2024-10-12 19:43:05,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 19:43:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 603 transitions. [2024-10-12 19:43:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-12 19:43:05,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:05,749 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:05,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:43:05,749 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:05,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 213011011, now seen corresponding path program 1 times [2024-10-12 19:43:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229911974] [2024-10-12 19:43:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:43:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:05,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:05,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229911974] [2024-10-12 19:43:05,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229911974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:05,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:05,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:43:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886647948] [2024-10-12 19:43:05,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:05,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:43:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:43:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:43:05,869 INFO L87 Difference]: Start difference. First operand 458 states and 603 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 19:43:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:06,163 INFO L93 Difference]: Finished difference Result 846 states and 1132 transitions. [2024-10-12 19:43:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:43:06,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-10-12 19:43:06,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:06,166 INFO L225 Difference]: With dead ends: 846 [2024-10-12 19:43:06,168 INFO L226 Difference]: Without dead ends: 390 [2024-10-12 19:43:06,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:43:06,171 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 182 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:06,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 289 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:06,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-10-12 19:43:06,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 380. [2024-10-12 19:43:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 269 states have (on average 1.2862453531598512) internal successors, (346), 288 states have internal predecessors, (346), 58 states have call successors, (58), 44 states have call predecessors, (58), 52 states have return successors, (80), 59 states have call predecessors, (80), 58 states have call successors, (80) [2024-10-12 19:43:06,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 484 transitions. [2024-10-12 19:43:06,204 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 484 transitions. Word has length 43 [2024-10-12 19:43:06,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:06,205 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 484 transitions. [2024-10-12 19:43:06,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 19:43:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 484 transitions. [2024-10-12 19:43:06,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-12 19:43:06,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:06,206 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:43:06,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:43:06,207 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:06,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:06,211 INFO L85 PathProgramCache]: Analyzing trace with hash 540619359, now seen corresponding path program 1 times [2024-10-12 19:43:06,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:06,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215486560] [2024-10-12 19:43:06,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:06,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:43:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:43:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-12 19:43:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:06,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215486560] [2024-10-12 19:43:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215486560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:06,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:06,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:43:06,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635232886] [2024-10-12 19:43:06,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:06,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:43:06,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:06,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:43:06,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:43:06,402 INFO L87 Difference]: Start difference. First operand 380 states and 484 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:43:07,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:07,116 INFO L93 Difference]: Finished difference Result 1144 states and 1583 transitions. [2024-10-12 19:43:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-12 19:43:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 47 [2024-10-12 19:43:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:07,123 INFO L225 Difference]: With dead ends: 1144 [2024-10-12 19:43:07,123 INFO L226 Difference]: Without dead ends: 866 [2024-10-12 19:43:07,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-12 19:43:07,126 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 463 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:07,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 328 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 19:43:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-12 19:43:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 822. [2024-10-12 19:43:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 577 states have (on average 1.2703639514731369) internal successors, (733), 625 states have internal predecessors, (733), 129 states have call successors, (129), 95 states have call predecessors, (129), 115 states have return successors, (213), 127 states have call predecessors, (213), 129 states have call successors, (213) [2024-10-12 19:43:07,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1075 transitions. [2024-10-12 19:43:07,189 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1075 transitions. Word has length 47 [2024-10-12 19:43:07,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:07,190 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1075 transitions. [2024-10-12 19:43:07,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:43:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1075 transitions. [2024-10-12 19:43:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-12 19:43:07,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:07,191 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-12 19:43:07,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:43:07,192 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:07,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 994621290, now seen corresponding path program 1 times [2024-10-12 19:43:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300348262] [2024-10-12 19:43:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:43:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:43:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:43:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:43:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-12 19:43:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300348262] [2024-10-12 19:43:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300348262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:43:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569042952] [2024-10-12 19:43:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:07,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:43:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:07,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:43:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:07,309 INFO L87 Difference]: Start difference. First operand 822 states and 1075 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-12 19:43:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:07,720 INFO L93 Difference]: Finished difference Result 1382 states and 1801 transitions. [2024-10-12 19:43:07,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:43:07,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 72 [2024-10-12 19:43:07,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:07,724 INFO L225 Difference]: With dead ends: 1382 [2024-10-12 19:43:07,724 INFO L226 Difference]: Without dead ends: 562 [2024-10-12 19:43:07,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-12 19:43:07,728 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 220 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:07,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 241 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:43:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-10-12 19:43:07,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 536. [2024-10-12 19:43:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 379 states have (on average 1.2612137203166227) internal successors, (478), 411 states have internal predecessors, (478), 83 states have call successors, (83), 63 states have call predecessors, (83), 73 states have return successors, (126), 82 states have call predecessors, (126), 83 states have call successors, (126) [2024-10-12 19:43:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 687 transitions. [2024-10-12 19:43:07,779 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 687 transitions. Word has length 72 [2024-10-12 19:43:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:07,779 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 687 transitions. [2024-10-12 19:43:07,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-12 19:43:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 687 transitions. [2024-10-12 19:43:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-12 19:43:07,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:07,781 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-12 19:43:07,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:43:07,782 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:07,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash 875974300, now seen corresponding path program 1 times [2024-10-12 19:43:07,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:07,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844701456] [2024-10-12 19:43:07,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:07,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:43:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:43:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:43:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:43:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:43:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 19:43:07,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:07,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844701456] [2024-10-12 19:43:07,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844701456] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:43:07,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82734919] [2024-10-12 19:43:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:07,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:43:07,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:43:07,989 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) [2024-10-12 19:43:07,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:43:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:08,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 19:43:08,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:43:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:43:08,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:43:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 19:43:08,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82734919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:43:08,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:43:08,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-12 19:43:08,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175562824] [2024-10-12 19:43:08,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:43:08,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:43:08,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:08,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:43:08,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:43:08,489 INFO L87 Difference]: Start difference. First operand 536 states and 687 transitions. Second operand has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-10-12 19:43:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:09,955 INFO L93 Difference]: Finished difference Result 1173 states and 1546 transitions. [2024-10-12 19:43:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-12 19:43:09,956 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 87 [2024-10-12 19:43:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:09,957 INFO L225 Difference]: With dead ends: 1173 [2024-10-12 19:43:09,958 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 19:43:09,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 200 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1711, Unknown=0, NotChecked=0, Total=2162 [2024-10-12 19:43:09,961 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 347 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:09,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 977 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 19:43:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 19:43:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 19:43:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:43:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 19:43:09,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2024-10-12 19:43:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:09,963 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 19:43:09,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-10-12 19:43:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 19:43:09,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 19:43:09,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:43:09,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:43:10,167 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 [2024-10-12 19:43:10,170 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:43:10,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 19:43:13,766 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:43:13,790 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~pumpRunning~0)|))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)))) [2024-10-12 19:43:13,805 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= |old(~waterLevel~0)| 2)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 (= 0 ~systemActive~0) .cse1) (and .cse2 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse1 .cse3) (and .cse2 .cse0 .cse1) (and .cse2 .cse3 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-12 19:43:13,824 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-12 19:43:13,837 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse2) (and .cse3 (= 0 ~systemActive~0) .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-12 19:43:13,851 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-12 19:43:13,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:43:13 BoogieIcfgContainer [2024-10-12 19:43:13,868 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:43:13,869 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:43:13,869 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:43:13,869 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:43:13,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:03" (3/4) ... [2024-10-12 19:43:13,872 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 19:43:13,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-10-12 19:43:13,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-12 19:43:13,885 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-12 19:43:13,885 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-12 19:43:13,886 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 19:43:13,886 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:43:13,887 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:43:14,012 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:43:14,012 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 19:43:14,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:43:14,013 INFO L158 Benchmark]: Toolchain (without parser) took 11730.43ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 143.9MB in the beginning and 56.0MB in the end (delta: 87.9MB). Peak memory consumption was 123.6MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,013 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:43:14,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.98ms. Allocated memory is still 176.2MB. Free memory was 143.9MB in the beginning and 122.2MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.67ms. Allocated memory is still 176.2MB. Free memory was 122.2MB in the beginning and 119.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,014 INFO L158 Benchmark]: Boogie Preprocessor took 56.42ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,014 INFO L158 Benchmark]: RCFGBuilder took 556.35ms. Allocated memory is still 176.2MB. Free memory was 116.7MB in the beginning and 90.8MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,014 INFO L158 Benchmark]: TraceAbstraction took 10389.84ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 90.1MB in the beginning and 64.4MB in the end (delta: 25.7MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,015 INFO L158 Benchmark]: Witness Printer took 143.72ms. Allocated memory is still 211.8MB. Free memory was 64.4MB in the beginning and 56.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 19:43:14,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.98ms. Allocated memory is still 176.2MB. Free memory was 143.9MB in the beginning and 122.2MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.67ms. Allocated memory is still 176.2MB. Free memory was 122.2MB in the beginning and 119.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.42ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.35ms. Allocated memory is still 176.2MB. Free memory was 116.7MB in the beginning and 90.8MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10389.84ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 90.1MB in the beginning and 64.4MB in the end (delta: 25.7MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. * Witness Printer took 143.72ms. Allocated memory is still 211.8MB. Free memory was 64.4MB in the beginning and 56.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] - GenericResultAtLocation [Line: 418]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [418] - GenericResultAtLocation [Line: 488]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [488] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [526] - GenericResultAtLocation [Line: 535]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [535] - GenericResultAtLocation [Line: 584]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [584] - GenericResultAtLocation [Line: 950]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [950] * 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: 531]: 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 10 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1608 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1560 mSDsluCounter, 3163 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2315 mSDsCounter, 532 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3250 IncrementalHoareTripleChecker+Invalid, 3782 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 532 mSolverCounterUnsat, 848 mSDtfsCounter, 3250 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 293 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=822occurred in iteration=8, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 94 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 597 ConstructedInterpolants, 0 QuantifiedInterpolants, 1131 SizeOfPredicates, 2 NumberOfNonLiveVariables, 307 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 104/131 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: 430]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 429]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 293]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) Ensures: ((pumpRunning == 0) && ((((2 == waterLevel) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 200]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) - ProcedureContractResult [Line: 952]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 173]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((pumpRunning == 0) || (0 != systemActive))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((((\old(pumpRunning) == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2)) || ((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 208]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= 2)) && (((((((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2))) || (((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || (((1 <= pumpRunning) && (1 == systemActive)) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 234]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) - ProcedureContractResult [Line: 312]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && (pumpRunning == \result)) RESULT: Ultimate proved your program to be correct! [2024-10-12 19:43:14,051 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