./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_product56.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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:01:35,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:01:35,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:01:35,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:01:35,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:01:35,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:01:35,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:01:35,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:01:35,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:01:35,433 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:01:35,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:01:35,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:01:35,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:01:35,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:01:35,434 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:01:35,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:01:35,435 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:01:35,436 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:01:35,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:35,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:35,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:01:35,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:01:35,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:01:35,438 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 -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2025-01-09 04:01:35,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:01:35,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:01:35,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:01:35,706 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:01:35,706 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:01:35,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2025-01-09 04:01:36,860 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/801bd95c3/f0309b133c484f279876430fa9a96402/FLAG3f55d26f0 [2025-01-09 04:01:37,143 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:01:37,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2025-01-09 04:01:37,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/801bd95c3/f0309b133c484f279876430fa9a96402/FLAG3f55d26f0 [2025-01-09 04:01:37,448 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/801bd95c3/f0309b133c484f279876430fa9a96402 [2025-01-09 04:01:37,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:01:37,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:01:37,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:01:37,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:01:37,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:01:37,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4826e492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37, skipping insertion in model container [2025-01-09 04:01:37,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:01:37,745 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_product56.cil.c[19275,19288] [2025-01-09 04:01:37,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:01:37,761 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:01:37,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2025-01-09 04:01:37,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2025-01-09 04:01:37,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2025-01-09 04:01:37,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] [2025-01-09 04:01:37,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2025-01-09 04:01:37,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] [2025-01-09 04:01:37,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2025-01-09 04:01:37,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] [2025-01-09 04:01:37,817 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_product56.cil.c[19275,19288] [2025-01-09 04:01:37,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:01:37,831 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:01:37,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37 WrapperNode [2025-01-09 04:01:37,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:01:37,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:01:37,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:01:37,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:01:37,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,862 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 233 [2025-01-09 04:01:37,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:01:37,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:01:37,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:01:37,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:01:37,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,882 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 04:01:37,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:01:37,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:01:37,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:01:37,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:01:37,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (1/1) ... [2025-01-09 04:01:37,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:01:37,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:01:37,932 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 04:01:37,940 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 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:01:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2025-01-09 04:01:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2025-01-09 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:01:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:01:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:01:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:01:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:01:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:01:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:01:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2025-01-09 04:01:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2025-01-09 04:01:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-01-09 04:01:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-01-09 04:01:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:01:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:01:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:01:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:01:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:01:38,021 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:01:38,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:01:38,224 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2025-01-09 04:01:38,224 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:01:38,234 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:01:38,234 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:01:38,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:38 BoogieIcfgContainer [2025-01-09 04:01:38,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:01:38,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:01:38,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:01:38,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:01:38,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:01:37" (1/3) ... [2025-01-09 04:01:38,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c5f5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:01:38, skipping insertion in model container [2025-01-09 04:01:38,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:01:37" (2/3) ... [2025-01-09 04:01:38,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c5f5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:01:38, skipping insertion in model container [2025-01-09 04:01:38,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:38" (3/3) ... [2025-01-09 04:01:38,241 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2025-01-09 04:01:38,252 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:01:38,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product56.cil.c that has 10 procedures, 105 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:01:38,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:01:38,317 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;@79cc0435, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:01:38,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:01:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 88 states have internal predecessors, (105), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 04:01:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 04:01:38,331 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:38,331 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 04:01:38,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:38,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:38,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1286117011, now seen corresponding path program 1 times [2025-01-09 04:01:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127093555] [2025-01-09 04:01:38,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:38,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 04:01:38,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 04:01:38,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:38,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:38,476 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 04:01:38,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:38,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127093555] [2025-01-09 04:01:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127093555] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:38,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:38,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 04:01:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495468715] [2025-01-09 04:01:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:38,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:01:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:38,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:01:38,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:01:38,503 INFO L87 Difference]: Start difference. First operand has 105 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 88 states have internal predecessors, (105), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 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 04:01:38,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:38,524 INFO L93 Difference]: Finished difference Result 202 states and 273 transitions. [2025-01-09 04:01:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:01:38,525 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 04:01:38,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:38,530 INFO L225 Difference]: With dead ends: 202 [2025-01-09 04:01:38,530 INFO L226 Difference]: Without dead ends: 96 [2025-01-09 04:01:38,532 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 04:01:38,534 INFO L435 NwaCegarLoop]: 135 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, 135 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 04:01:38,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2025-01-09 04:01:38,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2025-01-09 04:01:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 80 states have internal predecessors, (93), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 04:01:38,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2025-01-09 04:01:38,559 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 25 [2025-01-09 04:01:38,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:38,560 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2025-01-09 04:01:38,560 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 04:01:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2025-01-09 04:01:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 04:01:38,561 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:38,561 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 04:01:38,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:01:38,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:38,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash -364606439, now seen corresponding path program 1 times [2025-01-09 04:01:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:38,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453881774] [2025-01-09 04:01:38,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:38,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:38,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 04:01:38,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 04:01:38,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:38,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:38,659 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 04:01:38,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:38,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453881774] [2025-01-09 04:01:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453881774] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:38,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:01:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894207261] [2025-01-09 04:01:38,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:38,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:01:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:38,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:01:38,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:38,662 INFO L87 Difference]: Start difference. First operand 96 states and 126 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 04:01:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:38,675 INFO L93 Difference]: Finished difference Result 155 states and 203 transitions. [2025-01-09 04:01:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:01:38,676 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 04:01:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:38,677 INFO L225 Difference]: With dead ends: 155 [2025-01-09 04:01:38,677 INFO L226 Difference]: Without dead ends: 88 [2025-01-09 04:01:38,678 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 04:01:38,679 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 17 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 207 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 04:01:38,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:38,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-01-09 04:01:38,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2025-01-09 04:01:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 75 states have internal predecessors, (87), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 04:01:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2025-01-09 04:01:38,718 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 25 [2025-01-09 04:01:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:38,718 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2025-01-09 04:01:38,718 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 04:01:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2025-01-09 04:01:38,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-09 04:01:38,720 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:38,720 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] [2025-01-09 04:01:38,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:01:38,720 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:38,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash -935214691, now seen corresponding path program 1 times [2025-01-09 04:01:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:38,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143601949] [2025-01-09 04:01:38,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:38,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 04:01:38,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 04:01:38,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:38,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:38,840 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 04:01:38,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143601949] [2025-01-09 04:01:38,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143601949] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:01:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455946731] [2025-01-09 04:01:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:38,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:01:38,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:38,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:01:38,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:01:38,843 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:01:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:38,908 INFO L93 Difference]: Finished difference Result 212 states and 280 transitions. [2025-01-09 04:01:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:01:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2025-01-09 04:01:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:38,910 INFO L225 Difference]: With dead ends: 212 [2025-01-09 04:01:38,912 INFO L226 Difference]: Without dead ends: 131 [2025-01-09 04:01:38,913 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 04:01:38,913 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 108 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 434 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 04:01:38,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 434 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-01-09 04:01:38,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2025-01-09 04:01:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 95 states have (on average 1.3578947368421053) internal successors, (129), 108 states have internal predecessors, (129), 19 states have call successors, (19), 13 states have call predecessors, (19), 13 states have return successors, (20), 13 states have call predecessors, (20), 19 states have call successors, (20) [2025-01-09 04:01:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 168 transitions. [2025-01-09 04:01:38,930 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 168 transitions. Word has length 30 [2025-01-09 04:01:38,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:38,930 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 168 transitions. [2025-01-09 04:01:38,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:01:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 168 transitions. [2025-01-09 04:01:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-01-09 04:01:38,932 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:38,932 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 04:01:38,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:01:38,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:38,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -779589589, now seen corresponding path program 1 times [2025-01-09 04:01:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:38,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773807728] [2025-01-09 04:01:38,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:38,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-09 04:01:38,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-09 04:01:38,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:38,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:39,026 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 04:01:39,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:39,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773807728] [2025-01-09 04:01:39,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773807728] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:39,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:39,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:01:39,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78882663] [2025-01-09 04:01:39,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:39,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:01:39,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:39,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:01:39,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:01:39,027 INFO L87 Difference]: Start difference. First operand 128 states and 168 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 04:01:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:39,079 INFO L93 Difference]: Finished difference Result 358 states and 491 transitions. [2025-01-09 04:01:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:01:39,079 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 04:01:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:39,080 INFO L225 Difference]: With dead ends: 358 [2025-01-09 04:01:39,081 INFO L226 Difference]: Without dead ends: 237 [2025-01-09 04:01:39,081 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 04:01:39,081 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 78 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:39,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 421 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2025-01-09 04:01:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2025-01-09 04:01:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 174 states have (on average 1.339080459770115) internal successors, (233), 197 states have internal predecessors, (233), 38 states have call successors, (38), 26 states have call predecessors, (38), 24 states have return successors, (43), 24 states have call predecessors, (43), 38 states have call successors, (43) [2025-01-09 04:01:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 314 transitions. [2025-01-09 04:01:39,111 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 314 transitions. Word has length 33 [2025-01-09 04:01:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:39,111 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 314 transitions. [2025-01-09 04:01:39,111 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 04:01:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 314 transitions. [2025-01-09 04:01:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-09 04:01:39,112 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:39,113 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 04:01:39,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:01:39,113 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:39,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:39,113 INFO L85 PathProgramCache]: Analyzing trace with hash 629779312, now seen corresponding path program 1 times [2025-01-09 04:01:39,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:39,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809687329] [2025-01-09 04:01:39,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:39,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 04:01:39,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 04:01:39,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:39,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:01:39,173 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 04:01:39,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:01:39,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809687329] [2025-01-09 04:01:39,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809687329] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:01:39,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:01:39,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:01:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343102240] [2025-01-09 04:01:39,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:01:39,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:01:39,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:01:39,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:01:39,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:01:39,175 INFO L87 Difference]: Start difference. First operand 237 states and 314 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 04:01:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:01:39,228 INFO L93 Difference]: Finished difference Result 526 states and 714 transitions. [2025-01-09 04:01:39,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:01:39,229 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 04:01:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:01:39,231 INFO L225 Difference]: With dead ends: 526 [2025-01-09 04:01:39,231 INFO L226 Difference]: Without dead ends: 296 [2025-01-09 04:01:39,232 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 04:01:39,232 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 66 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:01:39,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 192 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:01:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2025-01-09 04:01:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 292. [2025-01-09 04:01:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 219 states have (on average 1.2876712328767124) internal successors, (282), 234 states have internal predecessors, (282), 38 states have call successors, (38), 35 states have call predecessors, (38), 34 states have return successors, (54), 35 states have call predecessors, (54), 38 states have call successors, (54) [2025-01-09 04:01:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 374 transitions. [2025-01-09 04:01:39,307 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 374 transitions. Word has length 35 [2025-01-09 04:01:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:01:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 374 transitions. [2025-01-09 04:01:39,307 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 04:01:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 374 transitions. [2025-01-09 04:01:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-09 04:01:39,309 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:01:39,309 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 04:01:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:01:39,310 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:01:39,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:01:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash -921096559, now seen corresponding path program 1 times [2025-01-09 04:01:39,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:01:39,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115388487] [2025-01-09 04:01:39,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:01:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:01:39,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 04:01:39,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 04:01:39,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:39,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 04:01:39,331 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 04:01:39,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 04:01:39,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 04:01:39,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:01:39,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 04:01:39,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 04:01:39,370 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 04:01:39,371 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:01:39,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:01:39,373 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 04:01:39,410 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:01:39,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:01:39 BoogieIcfgContainer [2025-01-09 04:01:39,413 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:01:39,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:01:39,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:01:39,413 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:01:39,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:01:38" (3/4) ... [2025-01-09 04:01:39,414 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 04:01:39,465 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 31. [2025-01-09 04:01:39,509 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:01:39,510 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:01:39,510 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:01:39,510 INFO L158 Benchmark]: Toolchain (without parser) took 2053.30ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 95.5MB in the end (delta: 16.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2025-01-09 04:01:39,510 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:39,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.86ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.2MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:01:39,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.44ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:39,511 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:01:39,511 INFO L158 Benchmark]: RCFGBuilder took 328.89ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 70.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:01:39,511 INFO L158 Benchmark]: TraceAbstraction took 1176.43ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 103.0MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:01:39,512 INFO L158 Benchmark]: Witness Printer took 96.66ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 95.5MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:01:39,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.86ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.2MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.44ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 328.89ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 70.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1176.43ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 103.0MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 96.66ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 95.5MB 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] - GenericResultAtLocation [Line: 1018]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] * 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: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L972] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L972] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) [L1000] CALL stopSystem() [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1000] RET stopSystem() [L1007] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L711] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] 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] [L566] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] 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] [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] 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] [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L1023] 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, 105 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, 273 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 1389 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 788 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 601 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 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 04:01:39,526 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