./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product32.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_spec4_product32.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 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:02:04,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:02:04,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:02:04,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:02:04,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:02:04,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:02:04,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:02:04,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:02:04,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:02:04,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:02:04,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:02:04,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:02:04,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:02:04,803 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:02:04,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:02:04,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:02:04,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:02:04,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:02:04,804 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 -> 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 [2025-01-09 04:02:05,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:02:05,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:02:05,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:02:05,072 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:02:05,072 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:02:05,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2025-01-09 04:02:06,277 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2513546c3/9c4081af87794db0b849d33470a9fab8/FLAGf75d4ce31 [2025-01-09 04:02:06,598 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:02:06,599 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2025-01-09 04:02:06,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2513546c3/9c4081af87794db0b849d33470a9fab8/FLAGf75d4ce31 [2025-01-09 04:02:06,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2513546c3/9c4081af87794db0b849d33470a9fab8 [2025-01-09 04:02:06,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:02:06,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:02:06,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:02:06,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:02:06,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:02:06,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:02:06" (1/1) ... [2025-01-09 04:02:06,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8b4fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:06, skipping insertion in model container [2025-01-09 04:02:06,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:02:06" (1/1) ... [2025-01-09 04:02:06,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:02:07,036 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_spec4_product32.cil.c[2567,2580] [2025-01-09 04:02:07,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:02:07,141 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:02:07,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [49] [2025-01-09 04:02:07,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] [2025-01-09 04:02:07,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] [2025-01-09 04:02:07,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2025-01-09 04:02:07,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] [2025-01-09 04:02:07,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] [2025-01-09 04:02:07,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] [2025-01-09 04:02:07,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] [2025-01-09 04:02:07,158 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_spec4_product32.cil.c[2567,2580] [2025-01-09 04:02:07,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:02:07,231 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:02:07,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07 WrapperNode [2025-01-09 04:02:07,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:02:07,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:02:07,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:02:07,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:02:07,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,260 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 195 [2025-01-09 04:02:07,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:02:07,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:02:07,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:02:07,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:02:07,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,282 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 04:02:07,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,290 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:02:07,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:02:07,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:02:07,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:02:07,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (1/1) ... [2025-01-09 04:02:07,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:02:07,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:02:07,334 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 04:02:07,337 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 04:02:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:02:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:02:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:02:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:02:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:02:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:02:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:02:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:02:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:02:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:02:07,422 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:02:07,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:02:07,665 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2025-01-09 04:02:07,665 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:02:07,674 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:02:07,675 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:02:07,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:02:07 BoogieIcfgContainer [2025-01-09 04:02:07,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:02:07,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:02:07,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:02:07,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:02:07,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:02:06" (1/3) ... [2025-01-09 04:02:07,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1cc083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:02:07, skipping insertion in model container [2025-01-09 04:02:07,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:02:07" (2/3) ... [2025-01-09 04:02:07,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1cc083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:02:07, skipping insertion in model container [2025-01-09 04:02:07,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:02:07" (3/3) ... [2025-01-09 04:02:07,682 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2025-01-09 04:02:07,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:02:07,693 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product32.cil.c that has 9 procedures, 89 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:02:07,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:02:07,750 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;@1db0f56b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:02:07,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:02:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 65 states have (on average 1.353846153846154) internal successors, (88), 74 states have internal predecessors, (88), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 04:02:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-09 04:02:07,761 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:07,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:02:07,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:07,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash 749783326, now seen corresponding path program 1 times [2025-01-09 04:02:07,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91379756] [2025-01-09 04:02:07,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:07,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:07,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 04:02:07,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 04:02:07,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:07,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:07,930 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 04:02:07,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91379756] [2025-01-09 04:02:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91379756] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:07,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:07,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 04:02:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41809254] [2025-01-09 04:02:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:07,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:02:07,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:07,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:02:07,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:02:07,953 INFO L87 Difference]: Start difference. First operand has 89 states, 65 states have (on average 1.353846153846154) internal successors, (88), 74 states have internal predecessors, (88), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:07,982 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2025-01-09 04:02:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:02:07,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2025-01-09 04:02:07,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:07,993 INFO L225 Difference]: With dead ends: 170 [2025-01-09 04:02:07,993 INFO L226 Difference]: Without dead ends: 80 [2025-01-09 04:02:07,997 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 04:02:07,999 INFO L435 NwaCegarLoop]: 112 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, 112 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 04:02:08,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-01-09 04:02:08,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-01-09 04:02:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 66 states have internal predecessors, (76), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 04:02:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2025-01-09 04:02:08,038 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 19 [2025-01-09 04:02:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,039 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2025-01-09 04:02:08,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2025-01-09 04:02:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-09 04:02:08,041 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:08,042 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:02:08,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:02:08,042 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:08,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash -634889014, now seen corresponding path program 1 times [2025-01-09 04:02:08,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:08,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96295333] [2025-01-09 04:02:08,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:08,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 04:02:08,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 04:02:08,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:08,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:08,107 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 04:02:08,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:08,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96295333] [2025-01-09 04:02:08,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96295333] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:08,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:08,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:02:08,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490566930] [2025-01-09 04:02:08,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:08,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:02:08,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:08,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:02:08,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:02:08,109 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:08,120 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2025-01-09 04:02:08,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:02:08,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2025-01-09 04:02:08,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:08,121 INFO L225 Difference]: With dead ends: 123 [2025-01-09 04:02:08,121 INFO L226 Difference]: Without dead ends: 72 [2025-01-09 04:02:08,122 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 04:02:08,122 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 161 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 04:02:08,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-01-09 04:02:08,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-01-09 04:02:08,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.320754716981132) internal successors, (70), 61 states have internal predecessors, (70), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-09 04:02:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2025-01-09 04:02:08,128 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 19 [2025-01-09 04:02:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,129 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2025-01-09 04:02:08,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2025-01-09 04:02:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 04:02:08,129 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:08,129 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] [2025-01-09 04:02:08,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:02:08,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:08,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash -945103719, now seen corresponding path program 1 times [2025-01-09 04:02:08,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:08,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381650567] [2025-01-09 04:02:08,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:08,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:08,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 04:02:08,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 04:02:08,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:08,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:08,212 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 04:02:08,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:08,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381650567] [2025-01-09 04:02:08,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381650567] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:08,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:08,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:02:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773458161] [2025-01-09 04:02:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:08,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:02:08,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:08,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:02:08,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:02:08,214 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:08,255 INFO L93 Difference]: Finished difference Result 174 states and 227 transitions. [2025-01-09 04:02:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:02:08,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-01-09 04:02:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:08,257 INFO L225 Difference]: With dead ends: 174 [2025-01-09 04:02:08,257 INFO L226 Difference]: Without dead ends: 109 [2025-01-09 04:02:08,257 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 04:02:08,258 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 85 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:02:08,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 343 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-01-09 04:02:08,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2025-01-09 04:02:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 90 states have internal predecessors, (107), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (16), 10 states have call predecessors, (16), 15 states have call successors, (16) [2025-01-09 04:02:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2025-01-09 04:02:08,285 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 24 [2025-01-09 04:02:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,285 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2025-01-09 04:02:08,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2025-01-09 04:02:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-09 04:02:08,286 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:08,286 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] [2025-01-09 04:02:08,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:02:08,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:08,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 561474556, now seen corresponding path program 1 times [2025-01-09 04:02:08,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:08,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011689113] [2025-01-09 04:02:08,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:08,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-09 04:02:08,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-09 04:02:08,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:08,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:08,415 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 04:02:08,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:08,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011689113] [2025-01-09 04:02:08,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011689113] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:08,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:08,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:02:08,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271713377] [2025-01-09 04:02:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:08,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:02:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:08,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:02:08,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:02:08,418 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:08,498 INFO L93 Difference]: Finished difference Result 292 states and 397 transitions. [2025-01-09 04:02:08,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:02:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2025-01-09 04:02:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:08,501 INFO L225 Difference]: With dead ends: 292 [2025-01-09 04:02:08,502 INFO L226 Difference]: Without dead ends: 193 [2025-01-09 04:02:08,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:02:08,504 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 59 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:02:08,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 335 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-01-09 04:02:08,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2025-01-09 04:02:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3380281690140845) internal successors, (190), 161 states have internal predecessors, (190), 30 states have call successors, (30), 22 states have call predecessors, (30), 20 states have return successors, (35), 18 states have call predecessors, (35), 30 states have call successors, (35) [2025-01-09 04:02:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 255 transitions. [2025-01-09 04:02:08,544 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 255 transitions. Word has length 27 [2025-01-09 04:02:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,545 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 255 transitions. [2025-01-09 04:02:08,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 255 transitions. [2025-01-09 04:02:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-01-09 04:02:08,552 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:08,552 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 04:02:08,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:02:08,553 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:08,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash -319550079, now seen corresponding path program 1 times [2025-01-09 04:02:08,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:08,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987319912] [2025-01-09 04:02:08,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:08,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:08,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 04:02:08,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 04:02:08,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:08,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:08,623 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 04:02:08,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:08,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987319912] [2025-01-09 04:02:08,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987319912] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:08,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:08,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 04:02:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622052555] [2025-01-09 04:02:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:08,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:02:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:08,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:02:08,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:02:08,624 INFO L87 Difference]: Start difference. First operand 193 states and 255 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:08,656 INFO L93 Difference]: Finished difference Result 325 states and 440 transitions. [2025-01-09 04:02:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:02:08,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2025-01-09 04:02:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:08,657 INFO L225 Difference]: With dead ends: 325 [2025-01-09 04:02:08,657 INFO L226 Difference]: Without dead ends: 139 [2025-01-09 04:02:08,658 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 04:02:08,658 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 53 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 04:02:08,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-01-09 04:02:08,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2025-01-09 04:02:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 113 states have internal predecessors, (134), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (18), 14 states have call predecessors, (18), 16 states have call successors, (18) [2025-01-09 04:02:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-01-09 04:02:08,684 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 29 [2025-01-09 04:02:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,684 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-01-09 04:02:08,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:02:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-01-09 04:02:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-01-09 04:02:08,688 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:02:08,688 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] [2025-01-09 04:02:08,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:02:08,688 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:02:08,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:02:08,689 INFO L85 PathProgramCache]: Analyzing trace with hash -422710942, now seen corresponding path program 1 times [2025-01-09 04:02:08,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:02:08,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546268754] [2025-01-09 04:02:08,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:02:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:02:08,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-09 04:02:08,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-09 04:02:08,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:02:08,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:02:08,768 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 04:02:08,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:02:08,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546268754] [2025-01-09 04:02:08,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546268754] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:02:08,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:02:08,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:02:08,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356283542] [2025-01-09 04:02:08,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:02:08,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:02:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:02:08,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:02:08,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:02:08,771 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:02:08,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:02:08,804 INFO L93 Difference]: Finished difference Result 137 states and 168 transitions. [2025-01-09 04:02:08,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:02:08,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2025-01-09 04:02:08,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:02:08,804 INFO L225 Difference]: With dead ends: 137 [2025-01-09 04:02:08,804 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 04:02:08,805 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 04:02:08,805 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:02:08,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:02:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 04:02:08,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 04:02:08,806 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) [2025-01-09 04:02:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 04:02:08,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2025-01-09 04:02:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:02:08,806 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 04:02:08,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:02:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 04:02:08,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 04:02:08,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:02:08,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:02:08,813 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 04:02:08,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 04:02:09,204 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:02:09,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:02:09 BoogieIcfgContainer [2025-01-09 04:02:09,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:02:09,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:02:09,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:02:09,215 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:02:09,215 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:02:07" (3/4) ... [2025-01-09 04:02:09,216 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:02:09,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2025-01-09 04:02:09,225 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-01-09 04:02:09,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 04:02:09,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 04:02:09,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:02:09,227 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:02:09,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:02:09,290 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:02:09,290 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:02:09,290 INFO L158 Benchmark]: Toolchain (without parser) took 2417.48ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 81.3MB in the end (delta: 77.1MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2025-01-09 04:02:09,290 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.69ms. Allocated memory is still 201.3MB. Free memory was 158.2MB in the beginning and 139.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.34ms. Allocated memory is still 201.3MB. Free memory was 139.7MB in the beginning and 137.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: Boogie Preprocessor took 40.00ms. Allocated memory is still 201.3MB. Free memory was 137.8MB in the beginning and 136.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: RCFGBuilder took 373.91ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 119.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: TraceAbstraction took 1537.00ms. Allocated memory is still 201.3MB. Free memory was 118.5MB in the beginning and 88.7MB in the end (delta: 29.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2025-01-09 04:02:09,291 INFO L158 Benchmark]: Witness Printer took 75.10ms. Allocated memory is still 201.3MB. Free memory was 88.7MB in the beginning and 81.3MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:02:09,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.69ms. Allocated memory is still 201.3MB. Free memory was 158.2MB in the beginning and 139.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.34ms. Allocated memory is still 201.3MB. Free memory was 139.7MB in the beginning and 137.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.00ms. Allocated memory is still 201.3MB. Free memory was 137.8MB in the beginning and 136.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 373.91ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 119.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1537.00ms. Allocated memory is still 201.3MB. Free memory was 118.5MB in the beginning and 88.7MB in the end (delta: 29.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 75.10ms. Allocated memory is still 201.3MB. Free memory was 88.7MB in the beginning and 81.3MB in the end (delta: 7.4MB). 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,"Specification4_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] - GenericResultAtLocation [Line: 319]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] * 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: 121]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 89 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, 236 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 1149 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 658 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 491 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 968]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) RESULT: Ultimate proved your program to be correct! [2025-01-09 04:02:09,304 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 Result: TRUE