./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_product35.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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:52:32,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:52:32,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:52:32,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:52:32,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:52:32,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:52:32,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:52:32,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:52:32,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:52:32,656 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:52:32,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:52:32,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:52:32,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:52:32,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:52:32,657 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:52:32,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:52:32,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:52:32,659 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:52:32,659 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:52:32,659 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:52:32,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:52:32,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:52:32,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:52:32,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:52:32,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:52:32,660 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 -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2025-02-05 15:52:32,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:52:32,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:52:32,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:52:32,917 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:52:32,917 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:52:32,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2025-02-05 15:52:34,095 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0cfda1b59/11257d130d314190b65abc2efa30b637/FLAG44a80d1c1 [2025-02-05 15:52:34,401 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:52:34,401 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2025-02-05 15:52:34,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0cfda1b59/11257d130d314190b65abc2efa30b637/FLAG44a80d1c1 [2025-02-05 15:52:34,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0cfda1b59/11257d130d314190b65abc2efa30b637 [2025-02-05 15:52:34,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:52:34,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:52:34,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:52:34,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:52:34,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:52:34,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528a471a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34, skipping insertion in model container [2025-02-05 15:52:34,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:52:34,826 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_product35.cil.c[8262,8275] [2025-02-05 15:52:34,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:52:34,868 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:52:34,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [297] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [432] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [561] [2025-02-05 15:52:34,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [570] [2025-02-05 15:52:34,891 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_product35.cil.c[8262,8275] [2025-02-05 15:52:34,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:52:34,926 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:52:34,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34 WrapperNode [2025-02-05 15:52:34,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:52:34,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:52:34,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:52:34,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:52:34,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,953 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 180 [2025-02-05 15:52:34,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:52:34,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:52:34,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:52:34,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:52:34,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,968 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]. [2025-02-05 15:52:34,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:52:34,974 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:52:34,974 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:52:34,974 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:52:34,977 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (1/1) ... [2025-02-05 15:52:34,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:52:35,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:52:35,017 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) [2025-02-05 15:52:35,025 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 [2025-02-05 15:52:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:52:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-02-05 15:52:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:52:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:52:35,095 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:52:35,096 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:52:35,122 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L477: #res := ~retValue_acc~4; [2025-02-05 15:52:35,153 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint cleanupFINAL: assume true; [2025-02-05 15:52:35,248 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L279-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-05 15:52:35,249 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L523-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2025-02-05 15:52:35,249 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L224-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-02-05 15:52:35,249 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L509-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; [2025-02-05 15:52:35,295 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2025-02-05 15:52:35,295 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-1: main_#res#1 := main_~retValue_acc~3#1; [2025-02-05 15:52:35,307 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2025-02-05 15:52:35,307 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:52:35,315 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:52:35,315 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:52:35,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:52:35 BoogieIcfgContainer [2025-02-05 15:52:35,316 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:52:35,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:52:35,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:52:35,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:52:35,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:52:34" (1/3) ... [2025-02-05 15:52:35,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57090d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:52:35, skipping insertion in model container [2025-02-05 15:52:35,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:52:34" (2/3) ... [2025-02-05 15:52:35,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57090d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:52:35, skipping insertion in model container [2025-02-05 15:52:35,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:52:35" (3/3) ... [2025-02-05 15:52:35,325 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2025-02-05 15:52:35,337 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:52:35,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product35.cil.c that has 7 procedures, 79 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-05 15:52:35,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:52:35,389 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;@123285a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:52:35,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:52:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 67 states have internal predecessors, (84), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-05 15:52:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-05 15:52:35,403 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:35,403 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] [2025-02-05 15:52:35,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:35,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:35,407 INFO L85 PathProgramCache]: Analyzing trace with hash -587748173, now seen corresponding path program 1 times [2025-02-05 15:52:35,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:35,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215572946] [2025-02-05 15:52:35,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:35,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-05 15:52:35,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-05 15:52:35,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:35,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:52:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:52:35,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:52:35,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215572946] [2025-02-05 15:52:35,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215572946] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:52:35,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:52:35,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 15:52:35,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553801543] [2025-02-05 15:52:35,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:52:35,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 15:52:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:52:35,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 15:52:35,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 15:52:35,583 INFO L87 Difference]: Start difference. First operand has 78 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 67 states have internal predecessors, (84), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) 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) [2025-02-05 15:52:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:52:35,606 INFO L93 Difference]: Finished difference Result 140 states and 189 transitions. [2025-02-05 15:52:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 15:52:35,608 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 [2025-02-05 15:52:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:52:35,614 INFO L225 Difference]: With dead ends: 140 [2025-02-05 15:52:35,615 INFO L226 Difference]: Without dead ends: 70 [2025-02-05 15:52:35,618 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 [2025-02-05 15:52:35,621 INFO L435 NwaCegarLoop]: 95 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, 95 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 [2025-02-05 15:52:35,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:52:35,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-02-05 15:52:35,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2025-02-05 15:52:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 60 states have internal predecessors, (73), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-05 15:52:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2025-02-05 15:52:35,660 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 25 [2025-02-05 15:52:35,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:52:35,661 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2025-02-05 15:52:35,661 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) [2025-02-05 15:52:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2025-02-05 15:52:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-05 15:52:35,663 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:35,663 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] [2025-02-05 15:52:35,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 15:52:35,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:35,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:35,665 INFO L85 PathProgramCache]: Analyzing trace with hash -10520804, now seen corresponding path program 1 times [2025-02-05 15:52:35,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:35,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320599241] [2025-02-05 15:52:35,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:35,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:35,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-05 15:52:35,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-05 15:52:35,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:35,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:52:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:52:35,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:52:35,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320599241] [2025-02-05 15:52:35,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320599241] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:52:35,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:52:35,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:52:35,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094331603] [2025-02-05 15:52:35,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:52:35,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:52:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:52:35,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:52:35,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:52:35,758 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-05 15:52:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:52:35,771 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2025-02-05 15:52:35,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:52:35,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2025-02-05 15:52:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:52:35,773 INFO L225 Difference]: With dead ends: 103 [2025-02-05 15:52:35,773 INFO L226 Difference]: Without dead ends: 61 [2025-02-05 15:52:35,773 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 [2025-02-05 15:52:35,774 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 16 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 134 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 [2025-02-05 15:52:35,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:52:35,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-05 15:52:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-02-05 15:52:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.346938775510204) internal successors, (66), 54 states have internal predecessors, (66), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-05 15:52:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2025-02-05 15:52:35,780 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 26 [2025-02-05 15:52:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:52:35,780 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2025-02-05 15:52:35,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-05 15:52:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2025-02-05 15:52:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-05 15:52:35,781 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:35,781 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] [2025-02-05 15:52:35,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 15:52:35,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 462937994, now seen corresponding path program 1 times [2025-02-05 15:52:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457204914] [2025-02-05 15:52:35,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:35,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-05 15:52:35,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-05 15:52:35,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:35,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:52:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:52:35,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:52:35,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457204914] [2025-02-05 15:52:35,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457204914] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:52:35,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:52:35,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:52:35,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082522616] [2025-02-05 15:52:35,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:52:35,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:52:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:52:35,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:52:35,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:52:35,937 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-05 15:52:36,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:52:36,068 INFO L93 Difference]: Finished difference Result 208 states and 274 transitions. [2025-02-05 15:52:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:52:36,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-02-05 15:52:36,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:52:36,070 INFO L225 Difference]: With dead ends: 208 [2025-02-05 15:52:36,070 INFO L226 Difference]: Without dead ends: 154 [2025-02-05 15:52:36,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:52:36,071 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 180 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:52:36,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 352 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:52:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2025-02-05 15:52:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 144. [2025-02-05 15:52:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 124 states have internal predecessors, (156), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2025-02-05 15:52:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 189 transitions. [2025-02-05 15:52:36,094 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 189 transitions. Word has length 29 [2025-02-05 15:52:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:52:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 189 transitions. [2025-02-05 15:52:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-05 15:52:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2025-02-05 15:52:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-05 15:52:36,096 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:36,096 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] [2025-02-05 15:52:36,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 15:52:36,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:36,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1491762775, now seen corresponding path program 1 times [2025-02-05 15:52:36,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:36,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804226354] [2025-02-05 15:52:36,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:36,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:36,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-05 15:52:36,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-05 15:52:36,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:36,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:52:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:52:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:52:36,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804226354] [2025-02-05 15:52:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804226354] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:52:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:52:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:52:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347829988] [2025-02-05 15:52:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:52:36,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:52:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:52:36,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:52:36,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:52:36,129 INFO L87 Difference]: Start difference. First operand 144 states and 189 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 15:52:36,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:52:36,178 INFO L93 Difference]: Finished difference Result 356 states and 476 transitions. [2025-02-05 15:52:36,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:52:36,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2025-02-05 15:52:36,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:52:36,182 INFO L225 Difference]: With dead ends: 356 [2025-02-05 15:52:36,182 INFO L226 Difference]: Without dead ends: 219 [2025-02-05 15:52:36,183 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 [2025-02-05 15:52:36,184 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:52:36,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 124 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:52:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-02-05 15:52:36,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2025-02-05 15:52:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 168 states have (on average 1.3511904761904763) internal successors, (227), 181 states have internal predecessors, (227), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2025-02-05 15:52:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 281 transitions. [2025-02-05 15:52:36,211 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 281 transitions. Word has length 34 [2025-02-05 15:52:36,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:52:36,214 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 281 transitions. [2025-02-05 15:52:36,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 15:52:36,214 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 281 transitions. [2025-02-05 15:52:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-05 15:52:36,215 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:36,215 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] [2025-02-05 15:52:36,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 15:52:36,215 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:36,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:36,215 INFO L85 PathProgramCache]: Analyzing trace with hash 64563758, now seen corresponding path program 1 times [2025-02-05 15:52:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013501943] [2025-02-05 15:52:36,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:36,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:36,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-05 15:52:36,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-05 15:52:36,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:36,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:52:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:52:36,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:52:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013501943] [2025-02-05 15:52:36,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013501943] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:52:36,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:52:36,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 15:52:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551036092] [2025-02-05 15:52:36,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:52:36,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:52:36,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:52:36,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:52:36,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:52:36,301 INFO L87 Difference]: Start difference. First operand 217 states and 281 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) [2025-02-05 15:52:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:52:36,396 INFO L93 Difference]: Finished difference Result 603 states and 814 transitions. [2025-02-05 15:52:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:52:36,400 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 [2025-02-05 15:52:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:52:36,402 INFO L225 Difference]: With dead ends: 603 [2025-02-05 15:52:36,402 INFO L226 Difference]: Without dead ends: 393 [2025-02-05 15:52:36,403 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 [2025-02-05 15:52:36,407 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 38 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:52:36,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 278 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:52:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2025-02-05 15:52:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2025-02-05 15:52:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.318032786885246) internal successors, (402), 323 states have internal predecessors, (402), 46 states have call successors, (46), 46 states have call predecessors, (46), 41 states have return successors, (62), 41 states have call predecessors, (62), 46 states have call successors, (62) [2025-02-05 15:52:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 510 transitions. [2025-02-05 15:52:36,456 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 510 transitions. Word has length 33 [2025-02-05 15:52:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:52:36,459 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 510 transitions. [2025-02-05 15:52:36,459 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) [2025-02-05 15:52:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 510 transitions. [2025-02-05 15:52:36,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-05 15:52:36,475 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:52:36,475 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] [2025-02-05 15:52:36,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 15:52:36,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:52:36,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:52:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash 227506000, now seen corresponding path program 1 times [2025-02-05 15:52:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:52:36,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751821685] [2025-02-05 15:52:36,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:52:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:52:36,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-05 15:52:36,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-05 15:52:36,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:36,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 15:52:36,489 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 15:52:36,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-05 15:52:36,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-05 15:52:36,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:52:36,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 15:52:36,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 15:52:36,511 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 15:52:36,512 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 15:52:36,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 15:52:36,515 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-05 15:52:36,538 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 15:52:36,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 03:52:36 BoogieIcfgContainer [2025-02-05 15:52:36,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 15:52:36,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 15:52:36,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 15:52:36,540 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 15:52:36,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:52:35" (3/4) ... [2025-02-05 15:52:36,541 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-05 15:52:36,592 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 32. [2025-02-05 15:52:36,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-05 15:52:36,653 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-05 15:52:36,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 15:52:36,653 INFO L158 Benchmark]: Toolchain (without parser) took 1987.47ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 97.5MB in the end (delta: 14.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2025-02-05 15:52:36,653 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.24ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.39ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: Boogie Preprocessor took 18.98ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: IcfgBuilder took 341.88ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 72.8MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: TraceAbstraction took 1222.42ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 104.9MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 15:52:36,654 INFO L158 Benchmark]: Witness Printer took 112.66ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 97.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 15:52:36,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.24ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.39ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.98ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 341.88ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 72.8MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1222.42ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 104.9MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 112.66ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 97.5MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 297]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [297] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [432] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [561] - GenericResultAtLocation [Line: 570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [570] * 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: 566]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] COND TRUE waterLevel < 2 [L452] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L99] tmp___1 = __VERIFIER_nondet_int() [L101] COND TRUE \read(tmp___1) [L103] CALL stopSystem() [L286] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L103] RET stopSystem() [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L153] CALL __utac_acc__Specification3_spec__1() [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] 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] [L307] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L313] CALL, EXPR getWaterLevel() [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] 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] [L313] RET, EXPR getWaterLevel() [L313] tmp___0 = getWaterLevel() [L315] COND TRUE tmp___0 == 2 [L317] CALL, EXPR isPumpRunning() [L219] int retValue_acc ; [L222] retValue_acc = pumpRunning [L223] 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] [L317] RET, EXPR isPumpRunning() [L317] tmp___1 = isPumpRunning() [L319] COND FALSE !(\read(tmp___1)) [L323] CALL __automaton_fail() [L566] 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 7 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 983 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 571 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 412 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=393occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 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! [2025-02-05 15:52:36,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE