./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:01:16,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:01:16,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:01:16,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:01:16,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:01:16,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:01:16,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:01:16,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:01:16,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:01:16,955 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:01:16,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:01:16,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:01:16,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:01:16,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:01:16,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:01:16,957 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:01:16,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:16,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:16,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:01:16,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:01:16,959 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2025-01-09 04:01:17,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:01:17,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:01:17,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:01:17,161 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:01:17,162 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:01:17,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2025-01-09 04:01:18,400 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b44ef66f/c36ee085f6e643f090a339550a034b13/FLAGd37ef48ba [2025-01-09 04:01:18,703 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:01:18,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2025-01-09 04:01:18,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b44ef66f/c36ee085f6e643f090a339550a034b13/FLAGd37ef48ba [2025-01-09 04:01:18,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b44ef66f/c36ee085f6e643f090a339550a034b13 [2025-01-09 04:01:18,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:01:18,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:01:18,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:01:18,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:01:18,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:01:18,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:01:18" (1/1) ... [2025-01-09 04:01:18,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a7ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:18, skipping insertion in model container [2025-01-09 04:01:18,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:01:18" (1/1) ... [2025-01-09 04:01:19,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:01:19,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2025-01-09 04:01:19,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:01:19,188 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:01:19,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-01-09 04:01:19,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2025-01-09 04:01:19,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] [2025-01-09 04:01:19,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2025-01-09 04:01:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] [2025-01-09 04:01:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] [2025-01-09 04:01:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] [2025-01-09 04:01:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] [2025-01-09 04:01:19,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2025-01-09 04:01:19,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:01:19,287 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:01:19,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19 WrapperNode [2025-01-09 04:01:19,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:01:19,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:01:19,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:01:19,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:01:19,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,320 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 183 [2025-01-09 04:01:19,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:01:19,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:01:19,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:01:19,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:01:19,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,338 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]. [2025-01-09 04:01:19,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,342 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:01:19,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:01:19,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:01:19,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:01:19,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (1/1) ... [2025-01-09 04:01:19,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:19,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:01:19,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:01:19,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:01:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:01:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:01:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2025-01-09 04:01:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2025-01-09 04:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-01-09 04:01:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-01-09 04:01:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:01:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:01:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:01:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:01:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:01:19,489 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:01:19,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:01:19,731 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2025-01-09 04:01:19,732 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:01:19,738 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:01:19,739 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:01:19,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:19 BoogieIcfgContainer [2025-01-09 04:01:19,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:01:19,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:01:19,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:01:19,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:01:19,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:01:18" (1/3) ... [2025-01-09 04:01:19,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3519b830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:01:19, skipping insertion in model container [2025-01-09 04:01:19,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:19" (2/3) ... [2025-01-09 04:01:19,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3519b830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:01:19, skipping insertion in model container [2025-01-09 04:01:19,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:19" (3/3) ... [2025-01-09 04:01:19,747 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2025-01-09 04:01:19,760 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:01:19,761 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product31.cil.c that has 10 procedures, 95 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:01:19,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:01:19,818 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;@4859ab7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:01:19,819 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:01:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 77 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 04:01:19,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 04:01:19,829 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:19,830 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:19,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:19,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash -668138902, now seen corresponding path program 1 times [2025-01-09 04:01:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:19,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011758942] [2025-01-09 04:01:19,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:19,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:19,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 04:01:19,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 04:01:19,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:19,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:01:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:19,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011758942] [2025-01-09 04:01:19,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011758942] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:19,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 04:01:19,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093642591] [2025-01-09 04:01:19,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:19,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:01:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:19,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:01:19,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:01:19,991 INFO L87 Difference]: Start difference. First operand has 95 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 77 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:20,018 INFO L93 Difference]: Finished difference Result 182 states and 243 transitions. [2025-01-09 04:01:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:01:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2025-01-09 04:01:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:20,026 INFO L225 Difference]: With dead ends: 182 [2025-01-09 04:01:20,026 INFO L226 Difference]: Without dead ends: 86 [2025-01-09 04:01:20,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:01:20,033 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:20,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-01-09 04:01:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-01-09 04:01:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 69 states have internal predecessors, (80), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 04:01:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2025-01-09 04:01:20,072 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2025-01-09 04:01:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:20,072 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2025-01-09 04:01:20,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2025-01-09 04:01:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 04:01:20,075 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:20,075 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:01:20,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:20,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:20,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1740773036, now seen corresponding path program 1 times [2025-01-09 04:01:20,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:20,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009347548] [2025-01-09 04:01:20,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:20,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:20,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 04:01:20,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 04:01:20,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:01:20,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:20,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009347548] [2025-01-09 04:01:20,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009347548] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:20,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:20,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:01:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303058994] [2025-01-09 04:01:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:20,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:01:20,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:20,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:01:20,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:20,187 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:20,206 INFO L93 Difference]: Finished difference Result 136 states and 174 transitions. [2025-01-09 04:01:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:01:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2025-01-09 04:01:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:20,207 INFO L225 Difference]: With dead ends: 136 [2025-01-09 04:01:20,208 INFO L226 Difference]: Without dead ends: 78 [2025-01-09 04:01:20,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:20,209 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:20,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-01-09 04:01:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2025-01-09 04:01:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 64 states have internal predecessors, (74), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 04:01:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2025-01-09 04:01:20,217 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 25 [2025-01-09 04:01:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:20,218 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2025-01-09 04:01:20,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2025-01-09 04:01:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-01-09 04:01:20,219 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:20,219 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:01:20,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:20,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -549283853, now seen corresponding path program 1 times [2025-01-09 04:01:20,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:20,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544942526] [2025-01-09 04:01:20,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:20,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:20,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 04:01:20,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 04:01:20,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:01:20,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:20,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544942526] [2025-01-09 04:01:20,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544942526] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:20,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:20,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 04:01:20,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535943248] [2025-01-09 04:01:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:20,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 04:01:20,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:20,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 04:01:20,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:01:20,335 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:20,492 INFO L93 Difference]: Finished difference Result 262 states and 343 transitions. [2025-01-09 04:01:20,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 04:01:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-01-09 04:01:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:20,494 INFO L225 Difference]: With dead ends: 262 [2025-01-09 04:01:20,495 INFO L226 Difference]: Without dead ends: 191 [2025-01-09 04:01:20,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:01:20,496 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 174 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:20,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 447 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:01:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-01-09 04:01:20,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2025-01-09 04:01:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 132 states have (on average 1.356060606060606) internal successors, (179), 150 states have internal predecessors, (179), 31 states have call successors, (31), 21 states have call predecessors, (31), 21 states have return successors, (32), 21 states have call predecessors, (32), 31 states have call successors, (32) [2025-01-09 04:01:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 242 transitions. [2025-01-09 04:01:20,512 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 242 transitions. Word has length 29 [2025-01-09 04:01:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:20,512 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 242 transitions. [2025-01-09 04:01:20,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,512 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 242 transitions. [2025-01-09 04:01:20,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-01-09 04:01:20,513 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:20,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:01:20,513 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:20,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash 803390825, now seen corresponding path program 1 times [2025-01-09 04:01:20,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:20,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283870713] [2025-01-09 04:01:20,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:20,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:20,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-09 04:01:20,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-09 04:01:20,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:01:20,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283870713] [2025-01-09 04:01:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283870713] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:20,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:01:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686154948] [2025-01-09 04:01:20,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:20,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:01:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:20,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:01:20,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:01:20,612 INFO L87 Difference]: Start difference. First operand 185 states and 242 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:20,660 INFO L93 Difference]: Finished difference Result 524 states and 707 transitions. [2025-01-09 04:01:20,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:01:20,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2025-01-09 04:01:20,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:20,663 INFO L225 Difference]: With dead ends: 524 [2025-01-09 04:01:20,663 INFO L226 Difference]: Without dead ends: 346 [2025-01-09 04:01:20,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:01:20,665 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 64 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:20,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 366 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-01-09 04:01:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2025-01-09 04:01:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 244 states have (on average 1.3360655737704918) internal successors, (326), 276 states have internal predecessors, (326), 62 states have call successors, (62), 42 states have call predecessors, (62), 39 states have return successors, (68), 39 states have call predecessors, (68), 62 states have call successors, (68) [2025-01-09 04:01:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 456 transitions. [2025-01-09 04:01:20,698 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 456 transitions. Word has length 33 [2025-01-09 04:01:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:20,698 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 456 transitions. [2025-01-09 04:01:20,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 456 transitions. [2025-01-09 04:01:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-09 04:01:20,700 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:20,700 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:01:20,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:20,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1156072174, now seen corresponding path program 1 times [2025-01-09 04:01:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:20,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873673644] [2025-01-09 04:01:20,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:20,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 04:01:20,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 04:01:20,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:01:20,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:20,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873673644] [2025-01-09 04:01:20,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873673644] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:20,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:20,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:01:20,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445162814] [2025-01-09 04:01:20,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:20,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:01:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:20,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:01:20,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:20,751 INFO L87 Difference]: Start difference. First operand 346 states and 456 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:20,789 INFO L93 Difference]: Finished difference Result 584 states and 780 transitions. [2025-01-09 04:01:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:01:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2025-01-09 04:01:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:20,791 INFO L225 Difference]: With dead ends: 584 [2025-01-09 04:01:20,791 INFO L226 Difference]: Without dead ends: 245 [2025-01-09 04:01:20,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:20,793 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:20,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-01-09 04:01:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2025-01-09 04:01:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 179 states have (on average 1.2625698324022345) internal successors, (226), 189 states have internal predecessors, (226), 32 states have call successors, (32), 32 states have call predecessors, (32), 29 states have return successors, (34), 29 states have call predecessors, (34), 32 states have call successors, (34) [2025-01-09 04:01:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 292 transitions. [2025-01-09 04:01:20,816 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 292 transitions. Word has length 35 [2025-01-09 04:01:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:20,816 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 292 transitions. [2025-01-09 04:01:20,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 04:01:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 292 transitions. [2025-01-09 04:01:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-09 04:01:20,817 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:20,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:01:20,818 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:20,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1275458511, now seen corresponding path program 1 times [2025-01-09 04:01:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:20,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499489694] [2025-01-09 04:01:20,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:20,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 04:01:20,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 04:01:20,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 04:01:20,833 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 04:01:20,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 04:01:20,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 04:01:20,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:20,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 04:01:20,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 04:01:20,861 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 04:01:20,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:01:20,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:01:20,865 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 04:01:20,885 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:01:20,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:01:20 BoogieIcfgContainer [2025-01-09 04:01:20,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:01:20,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:01:20,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:01:20,889 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:01:20,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:19" (3/4) ... [2025-01-09 04:01:20,890 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 04:01:20,939 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 31. [2025-01-09 04:01:20,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:01:20,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:01:20,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:01:20,994 INFO L158 Benchmark]: Toolchain (without parser) took 2015.38ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 80.0MB in the end (delta: 26.6MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2025-01-09 04:01:20,994 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:20,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.49ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 88.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:01:20,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.73ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 85.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:20,995 INFO L158 Benchmark]: Boogie Preprocessor took 29.09ms. Allocated memory is still 142.6MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:01:20,995 INFO L158 Benchmark]: RCFGBuilder took 381.34ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 67.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:01:20,996 INFO L158 Benchmark]: TraceAbstraction took 1146.97ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 87.5MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:20,996 INFO L158 Benchmark]: Witness Printer took 105.21ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 80.0MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:01:20,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.49ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 88.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.73ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 85.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.09ms. Allocated memory is still 142.6MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 381.34ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 67.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1146.97ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 87.5MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 105.21ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 80.0MB in the end (delta: 7.5MB). 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: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] - GenericResultAtLocation [Line: 805]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 150]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L536] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L542] tmp = __VERIFIER_nondet_int() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L546] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L546] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp___2)) [L568] tmp___1 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___1) [L572] CALL stopSystem() [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L572] RET stopSystem() [L579] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L610] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND TRUE tmp___0 == 2 [L823] CALL, EXPR isPumpRunning() [L727] int retValue_acc ; [L730] retValue_acc = pumpRunning [L731] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L823] RET, EXPR isPumpRunning() [L823] tmp___1 = isPumpRunning() [L825] COND FALSE !(\read(tmp___1)) [L829] CALL __automaton_fail() [L150] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 1170 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 684 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 486 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-01-09 04:01:21,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE