./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product46.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_spec5_product46.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 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:03:04,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:03:04,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:03:04,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:03:04,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:03:04,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:03:04,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:03:04,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:03:04,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:03:04,712 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:03:04,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:03:04,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:03:04,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:03:04,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:03:04,714 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:03:04,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:03:04,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:03:04,714 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:03:04,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:03:04,715 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:04,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:04,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:04,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:03:04,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:03:04,716 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 -> 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 [2025-01-09 04:03:04,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:03:04,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:03:04,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:03:04,951 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:03:04,952 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:03:04,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2025-01-09 04:03:06,073 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/08e93d5ec/af3e38b8fc554e3691e2364805f3af5d/FLAGcb69151b2 [2025-01-09 04:03:06,351 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:03:06,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2025-01-09 04:03:06,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/08e93d5ec/af3e38b8fc554e3691e2364805f3af5d/FLAGcb69151b2 [2025-01-09 04:03:06,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/08e93d5ec/af3e38b8fc554e3691e2364805f3af5d [2025-01-09 04:03:06,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:03:06,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:03:06,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:06,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:03:06,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:03:06,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:06,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40242edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06, skipping insertion in model container [2025-01-09 04:03:06,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:06,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:03:06,872 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_spec5_product46.cil.c[15211,15224] [2025-01-09 04:03:06,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:06,897 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:03:06,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2025-01-09 04:03:06,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] [2025-01-09 04:03:06,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [206] [2025-01-09 04:03:06,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [572] [2025-01-09 04:03:06,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [670] [2025-01-09 04:03:06,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [705] [2025-01-09 04:03:06,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [714] [2025-01-09 04:03:06,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [923] [2025-01-09 04:03:06,962 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_spec5_product46.cil.c[15211,15224] [2025-01-09 04:03:06,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:06,989 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:03:06,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06 WrapperNode [2025-01-09 04:03:06,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:06,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:06,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:03:06,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:03:06,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,034 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 211 [2025-01-09 04:03:07,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:07,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:03:07,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:03:07,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:03:07,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,064 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 04:03:07,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,071 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:03:07,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:03:07,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:03:07,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:03:07,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (1/1) ... [2025-01-09 04:03:07,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:07,117 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 04:03:07,119 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 04:03:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:03:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:03:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:03:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:03:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:03:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:03:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:03:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:03:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:03:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:03:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:03:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2025-01-09 04:03:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2025-01-09 04:03:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2025-01-09 04:03:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2025-01-09 04:03:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:03:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:03:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:03:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:03:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:03:07,208 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:03:07,211 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:03:07,454 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2025-01-09 04:03:07,454 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:03:07,465 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:03:07,466 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:03:07,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:07 BoogieIcfgContainer [2025-01-09 04:03:07,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:03:07,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:03:07,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:03:07,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:03:07,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:03:06" (1/3) ... [2025-01-09 04:03:07,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f197242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:07, skipping insertion in model container [2025-01-09 04:03:07,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:06" (2/3) ... [2025-01-09 04:03:07,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f197242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:07, skipping insertion in model container [2025-01-09 04:03:07,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:07" (3/3) ... [2025-01-09 04:03:07,475 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2025-01-09 04:03:07,488 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:03:07,490 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product46.cil.c that has 9 procedures, 97 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:03:07,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:03:07,548 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;@6498f8d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:03:07,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:03:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 73 states have (on average 1.3424657534246576) internal successors, (98), 81 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 04:03:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-01-09 04:03:07,559 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:07,560 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:07,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 789144735, now seen corresponding path program 1 times [2025-01-09 04:03:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494550475] [2025-01-09 04:03:07,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:07,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:07,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-09 04:03:07,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-09 04:03:07,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:07,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494550475] [2025-01-09 04:03:07,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494550475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:07,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:07,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:07,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12341530] [2025-01-09 04:03:07,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:07,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:07,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:07,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:07,801 INFO L87 Difference]: Start difference. First operand has 97 states, 73 states have (on average 1.3424657534246576) internal successors, (98), 81 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 04:03:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:07,832 INFO L93 Difference]: Finished difference Result 173 states and 227 transitions. [2025-01-09 04:03:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2025-01-09 04:03:07,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:07,842 INFO L225 Difference]: With dead ends: 173 [2025-01-09 04:03:07,842 INFO L226 Difference]: Without dead ends: 80 [2025-01-09 04:03:07,846 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 04:03:07,848 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 13 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 194 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 04:03:07,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 194 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-01-09 04:03:07,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-01-09 04:03:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 68 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-09 04:03:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2025-01-09 04:03:07,876 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 32 [2025-01-09 04:03:07,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:07,876 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2025-01-09 04:03:07,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 04:03:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2025-01-09 04:03:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-09 04:03:07,878 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:07,878 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:07,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:03:07,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:07,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash 578256256, now seen corresponding path program 1 times [2025-01-09 04:03:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:07,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591608738] [2025-01-09 04:03:07,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:07,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 04:03:07,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 04:03:07,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:07,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:08,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:08,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591608738] [2025-01-09 04:03:08,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591608738] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:08,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:08,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:08,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875895818] [2025-01-09 04:03:08,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:08,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:08,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:08,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:08,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:08,002 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:08,028 INFO L93 Difference]: Finished difference Result 152 states and 197 transitions. [2025-01-09 04:03:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2025-01-09 04:03:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:08,030 INFO L225 Difference]: With dead ends: 152 [2025-01-09 04:03:08,030 INFO L226 Difference]: Without dead ends: 80 [2025-01-09 04:03:08,030 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 04:03:08,031 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:08,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 100 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-01-09 04:03:08,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-01-09 04:03:08,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 68 states have internal predecessors, (79), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-09 04:03:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2025-01-09 04:03:08,043 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 37 [2025-01-09 04:03:08,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:08,044 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2025-01-09 04:03:08,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2025-01-09 04:03:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-01-09 04:03:08,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:08,045 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:08,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:03:08,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:08,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:08,046 INFO L85 PathProgramCache]: Analyzing trace with hash -181152784, now seen corresponding path program 1 times [2025-01-09 04:03:08,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:08,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577120525] [2025-01-09 04:03:08,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:08,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:08,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-01-09 04:03:08,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-09 04:03:08,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:08,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:08,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:08,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:08,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577120525] [2025-01-09 04:03:08,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577120525] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:08,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:08,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:08,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197429703] [2025-01-09 04:03:08,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:08,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:08,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:08,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:08,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:08,155 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 04:03:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:08,416 INFO L93 Difference]: Finished difference Result 235 states and 297 transitions. [2025-01-09 04:03:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 04:03:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2025-01-09 04:03:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:08,420 INFO L225 Difference]: With dead ends: 235 [2025-01-09 04:03:08,420 INFO L226 Difference]: Without dead ends: 163 [2025-01-09 04:03:08,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:03:08,421 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 206 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:08,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 283 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 04:03:08,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-01-09 04:03:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2025-01-09 04:03:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 120 states have (on average 1.2583333333333333) internal successors, (151), 128 states have internal predecessors, (151), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2025-01-09 04:03:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2025-01-09 04:03:08,437 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 47 [2025-01-09 04:03:08,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:08,438 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2025-01-09 04:03:08,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 04:03:08,441 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2025-01-09 04:03:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-09 04:03:08,442 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:08,442 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:08,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:03:08,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:08,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1002215272, now seen corresponding path program 1 times [2025-01-09 04:03:08,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:08,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702132456] [2025-01-09 04:03:08,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:08,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:08,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 04:03:08,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 04:03:08,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:08,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 04:03:08,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:08,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702132456] [2025-01-09 04:03:08,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702132456] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:08,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:08,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 04:03:08,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756972336] [2025-01-09 04:03:08,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:08,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 04:03:08,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:08,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 04:03:08,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:03:08,590 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:08,838 INFO L93 Difference]: Finished difference Result 306 states and 376 transitions. [2025-01-09 04:03:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:08,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2025-01-09 04:03:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:08,839 INFO L225 Difference]: With dead ends: 306 [2025-01-09 04:03:08,839 INFO L226 Difference]: Without dead ends: 157 [2025-01-09 04:03:08,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-01-09 04:03:08,840 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 137 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:08,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 385 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 04:03:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-01-09 04:03:08,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2025-01-09 04:03:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 118 states have (on average 1.228813559322034) internal successors, (145), 126 states have internal predecessors, (145), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2025-01-09 04:03:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2025-01-09 04:03:08,852 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 53 [2025-01-09 04:03:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:08,852 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2025-01-09 04:03:08,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2025-01-09 04:03:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-09 04:03:08,853 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:08,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:08,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:03:08,854 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash -790011004, now seen corresponding path program 1 times [2025-01-09 04:03:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:08,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943990862] [2025-01-09 04:03:08,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:08,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:08,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 04:03:08,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 04:03:08,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:08,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:08,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:08,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943990862] [2025-01-09 04:03:08,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943990862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:08,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:08,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:08,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922735549] [2025-01-09 04:03:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:08,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:08,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:08,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:08,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:08,920 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 04:03:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:08,943 INFO L93 Difference]: Finished difference Result 305 states and 374 transitions. [2025-01-09 04:03:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:08,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2025-01-09 04:03:08,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:08,946 INFO L225 Difference]: With dead ends: 305 [2025-01-09 04:03:08,946 INFO L226 Difference]: Without dead ends: 158 [2025-01-09 04:03:08,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:08,947 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:08,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-01-09 04:03:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-01-09 04:03:08,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 129 states have internal predecessors, (148), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2025-01-09 04:03:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 189 transitions. [2025-01-09 04:03:08,967 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 189 transitions. Word has length 59 [2025-01-09 04:03:08,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:08,967 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 189 transitions. [2025-01-09 04:03:08,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 04:03:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 189 transitions. [2025-01-09 04:03:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-09 04:03:08,968 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:08,968 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:08,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:03:08,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:08,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:08,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1133217030, now seen corresponding path program 1 times [2025-01-09 04:03:08,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:08,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854316712] [2025-01-09 04:03:08,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:08,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 04:03:08,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 04:03:08,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:08,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:09,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854316712] [2025-01-09 04:03:09,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854316712] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:09,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:09,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054563823] [2025-01-09 04:03:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:09,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:09,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:09,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:09,049 INFO L87 Difference]: Start difference. First operand 158 states and 189 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:09,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:09,083 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2025-01-09 04:03:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:09,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2025-01-09 04:03:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:09,085 INFO L225 Difference]: With dead ends: 310 [2025-01-09 04:03:09,085 INFO L226 Difference]: Without dead ends: 160 [2025-01-09 04:03:09,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 04:03:09,085 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 94 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:09,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 288 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2025-01-09 04:03:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2025-01-09 04:03:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 131 states have internal predecessors, (150), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2025-01-09 04:03:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2025-01-09 04:03:09,095 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 59 [2025-01-09 04:03:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:09,095 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2025-01-09 04:03:09,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:09,095 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2025-01-09 04:03:09,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-09 04:03:09,096 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:09,096 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:09,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:03:09,096 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:09,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:09,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1775546872, now seen corresponding path program 1 times [2025-01-09 04:03:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:09,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227081406] [2025-01-09 04:03:09,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:09,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:09,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 04:03:09,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 04:03:09,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:09,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:09,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:09,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227081406] [2025-01-09 04:03:09,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227081406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:09,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:09,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:03:09,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307336029] [2025-01-09 04:03:09,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:09,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:03:09,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:09,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:03:09,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:09,187 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:09,274 INFO L93 Difference]: Finished difference Result 486 states and 600 transitions. [2025-01-09 04:03:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:03:09,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2025-01-09 04:03:09,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:09,277 INFO L225 Difference]: With dead ends: 486 [2025-01-09 04:03:09,277 INFO L226 Difference]: Without dead ends: 334 [2025-01-09 04:03:09,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:09,278 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 122 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:09,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 320 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:03:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-01-09 04:03:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 327. [2025-01-09 04:03:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 249 states have (on average 1.2048192771084338) internal successors, (300), 263 states have internal predecessors, (300), 39 states have call successors, (39), 33 states have call predecessors, (39), 38 states have return successors, (58), 41 states have call predecessors, (58), 39 states have call successors, (58) [2025-01-09 04:03:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 397 transitions. [2025-01-09 04:03:09,313 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 397 transitions. Word has length 59 [2025-01-09 04:03:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:09,314 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 397 transitions. [2025-01-09 04:03:09,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 397 transitions. [2025-01-09 04:03:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 04:03:09,315 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:09,315 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:09,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 04:03:09,316 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:09,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1641051806, now seen corresponding path program 1 times [2025-01-09 04:03:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:09,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517962748] [2025-01-09 04:03:09,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:09,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 04:03:09,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 04:03:09,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:09,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:09,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517962748] [2025-01-09 04:03:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517962748] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 04:03:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714762331] [2025-01-09 04:03:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:09,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 04:03:09,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:09,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 04:03:09,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:03:09,496 INFO L87 Difference]: Start difference. First operand 327 states and 397 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2025-01-09 04:03:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:09,843 INFO L93 Difference]: Finished difference Result 884 states and 1110 transitions. [2025-01-09 04:03:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:09,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 63 [2025-01-09 04:03:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:09,848 INFO L225 Difference]: With dead ends: 884 [2025-01-09 04:03:09,848 INFO L226 Difference]: Without dead ends: 615 [2025-01-09 04:03:09,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-01-09 04:03:09,851 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 339 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:09,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 526 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2025-01-09 04:03:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 563. [2025-01-09 04:03:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 427 states have (on average 1.1943793911007026) internal successors, (510), 452 states have internal predecessors, (510), 67 states have call successors, (67), 58 states have call predecessors, (67), 68 states have return successors, (96), 70 states have call predecessors, (96), 67 states have call successors, (96) [2025-01-09 04:03:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 673 transitions. [2025-01-09 04:03:09,899 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 673 transitions. Word has length 63 [2025-01-09 04:03:09,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:09,899 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 673 transitions. [2025-01-09 04:03:09,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2025-01-09 04:03:09,899 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 673 transitions. [2025-01-09 04:03:09,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-09 04:03:09,900 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:09,901 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:09,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 04:03:09,901 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:09,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2129559379, now seen corresponding path program 1 times [2025-01-09 04:03:09,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:09,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795421750] [2025-01-09 04:03:09,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:09,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:09,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 04:03:09,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 04:03:09,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:09,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 04:03:10,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:10,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795421750] [2025-01-09 04:03:10,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795421750] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:10,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304800532] [2025-01-09 04:03:10,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:10,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:10,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:10,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:10,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 04:03:10,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 04:03:10,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 04:03:10,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:10,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:10,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 04:03:10,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:03:10,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 04:03:10,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304800532] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:10,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:10,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2025-01-09 04:03:10,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841230859] [2025-01-09 04:03:10,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:10,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 04:03:10,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:10,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 04:03:10,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-09 04:03:10,465 INFO L87 Difference]: Start difference. First operand 563 states and 673 transitions. Second operand has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 13 states have internal predecessors, (131), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2025-01-09 04:03:10,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:10,938 INFO L93 Difference]: Finished difference Result 1283 states and 1597 transitions. [2025-01-09 04:03:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 04:03:10,939 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 13 states have internal predecessors, (131), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 106 [2025-01-09 04:03:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:10,944 INFO L225 Difference]: With dead ends: 1283 [2025-01-09 04:03:10,945 INFO L226 Difference]: Without dead ends: 776 [2025-01-09 04:03:10,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 209 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2025-01-09 04:03:10,948 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 296 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:10,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1394 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 04:03:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2025-01-09 04:03:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 630. [2025-01-09 04:03:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 473 states have (on average 1.1966173361522199) internal successors, (566), 506 states have internal predecessors, (566), 78 states have call successors, (78), 69 states have call predecessors, (78), 78 states have return successors, (107), 77 states have call predecessors, (107), 78 states have call successors, (107) [2025-01-09 04:03:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 751 transitions. [2025-01-09 04:03:11,025 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 751 transitions. Word has length 106 [2025-01-09 04:03:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:11,026 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 751 transitions. [2025-01-09 04:03:11,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 13 states have internal predecessors, (131), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2025-01-09 04:03:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 751 transitions. [2025-01-09 04:03:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 04:03:11,029 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:11,029 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:11,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:11,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:11,230 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:11,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:11,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2125785242, now seen corresponding path program 1 times [2025-01-09 04:03:11,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:11,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906193627] [2025-01-09 04:03:11,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:11,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:11,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 04:03:11,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 04:03:11,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:11,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 91 proven. 31 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-01-09 04:03:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906193627] [2025-01-09 04:03:11,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906193627] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95039017] [2025-01-09 04:03:11,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:11,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:11,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:11,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 04:03:11,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 04:03:11,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 04:03:11,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:11,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:11,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 04:03:11,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 154 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 04:03:11,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 77 proven. 38 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-01-09 04:03:12,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95039017] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:12,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:12,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2025-01-09 04:03:12,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301379231] [2025-01-09 04:03:12,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:12,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 04:03:12,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:12,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 04:03:12,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2025-01-09 04:03:12,143 INFO L87 Difference]: Start difference. First operand 630 states and 751 transitions. Second operand has 25 states, 25 states have (on average 8.48) internal successors, (212), 22 states have internal predecessors, (212), 9 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (36), 10 states have call predecessors, (36), 9 states have call successors, (36) [2025-01-09 04:03:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:13,577 INFO L93 Difference]: Finished difference Result 1860 states and 2342 transitions. [2025-01-09 04:03:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-09 04:03:13,578 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 22 states have internal predecessors, (212), 9 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (36), 10 states have call predecessors, (36), 9 states have call successors, (36) Word has length 188 [2025-01-09 04:03:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:13,584 INFO L225 Difference]: With dead ends: 1860 [2025-01-09 04:03:13,584 INFO L226 Difference]: Without dead ends: 1208 [2025-01-09 04:03:13,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 370 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2025-01-09 04:03:13,589 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 712 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:13,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1198 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 04:03:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2025-01-09 04:03:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1134. [2025-01-09 04:03:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 858 states have (on average 1.141025641025641) internal successors, (979), 896 states have internal predecessors, (979), 147 states have call successors, (147), 133 states have call predecessors, (147), 128 states have return successors, (170), 128 states have call predecessors, (170), 147 states have call successors, (170) [2025-01-09 04:03:13,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1296 transitions. [2025-01-09 04:03:13,664 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1296 transitions. Word has length 188 [2025-01-09 04:03:13,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:13,664 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1296 transitions. [2025-01-09 04:03:13,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 22 states have internal predecessors, (212), 9 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (36), 10 states have call predecessors, (36), 9 states have call successors, (36) [2025-01-09 04:03:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1296 transitions. [2025-01-09 04:03:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2025-01-09 04:03:13,668 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:13,668 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:13,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 04:03:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:13,869 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:13,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1334675884, now seen corresponding path program 1 times [2025-01-09 04:03:13,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:13,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694999298] [2025-01-09 04:03:13,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:13,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:13,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-01-09 04:03:13,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-01-09 04:03:13,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:13,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 96 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-01-09 04:03:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694999298] [2025-01-09 04:03:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694999298] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377957340] [2025-01-09 04:03:14,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:14,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:14,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:14,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 04:03:14,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-01-09 04:03:14,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-01-09 04:03:14,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:14,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 04:03:14,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-01-09 04:03:14,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 99 proven. 54 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-01-09 04:03:14,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377957340] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:14,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:14,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2025-01-09 04:03:14,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82046631] [2025-01-09 04:03:14,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:14,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 04:03:14,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:14,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 04:03:14,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2025-01-09 04:03:14,644 INFO L87 Difference]: Start difference. First operand 1134 states and 1296 transitions. Second operand has 23 states, 23 states have (on average 9.826086956521738) internal successors, (226), 20 states have internal predecessors, (226), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2025-01-09 04:03:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:15,233 INFO L93 Difference]: Finished difference Result 2221 states and 2556 transitions. [2025-01-09 04:03:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 04:03:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.826086956521738) internal successors, (226), 20 states have internal predecessors, (226), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Word has length 212 [2025-01-09 04:03:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:15,242 INFO L225 Difference]: With dead ends: 2221 [2025-01-09 04:03:15,242 INFO L226 Difference]: Without dead ends: 1191 [2025-01-09 04:03:15,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:15,246 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 616 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:15,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 841 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 04:03:15,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2025-01-09 04:03:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1122. [2025-01-09 04:03:15,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 851 states have (on average 1.1304347826086956) internal successors, (962), 886 states have internal predecessors, (962), 138 states have call successors, (138), 134 states have call predecessors, (138), 132 states have return successors, (161), 125 states have call predecessors, (161), 138 states have call successors, (161) [2025-01-09 04:03:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1261 transitions. [2025-01-09 04:03:15,330 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1261 transitions. Word has length 212 [2025-01-09 04:03:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:15,331 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1261 transitions. [2025-01-09 04:03:15,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.826086956521738) internal successors, (226), 20 states have internal predecessors, (226), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2025-01-09 04:03:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1261 transitions. [2025-01-09 04:03:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2025-01-09 04:03:15,334 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:15,334 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:15,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:15,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:15,536 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:15,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:15,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1205125106, now seen corresponding path program 1 times [2025-01-09 04:03:15,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:15,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779744971] [2025-01-09 04:03:15,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:15,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:15,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-01-09 04:03:15,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-01-09 04:03:15,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:15,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 94 proven. 42 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2025-01-09 04:03:16,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779744971] [2025-01-09 04:03:16,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779744971] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056140404] [2025-01-09 04:03:16,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:16,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:16,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:16,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 04:03:16,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-01-09 04:03:16,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-01-09 04:03:16,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:16,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:16,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 04:03:16,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 138 proven. 25 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-01-09 04:03:16,312 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 99 proven. 44 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-01-09 04:03:16,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056140404] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:16,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:16,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 22 [2025-01-09 04:03:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767357961] [2025-01-09 04:03:16,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:16,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 04:03:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:16,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 04:03:16,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2025-01-09 04:03:16,758 INFO L87 Difference]: Start difference. First operand 1122 states and 1261 transitions. Second operand has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (45), 15 states have call predecessors, (45), 15 states have call successors, (45) [2025-01-09 04:03:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,371 INFO L93 Difference]: Finished difference Result 2167 states and 2482 transitions. [2025-01-09 04:03:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 04:03:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (45), 15 states have call predecessors, (45), 15 states have call successors, (45) Word has length 213 [2025-01-09 04:03:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,378 INFO L225 Difference]: With dead ends: 2167 [2025-01-09 04:03:17,379 INFO L226 Difference]: Without dead ends: 1545 [2025-01-09 04:03:17,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 421 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:17,382 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 706 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:17,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 737 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 04:03:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2025-01-09 04:03:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1403. [2025-01-09 04:03:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1065 states have (on average 1.1267605633802817) internal successors, (1200), 1103 states have internal predecessors, (1200), 175 states have call successors, (175), 170 states have call predecessors, (175), 162 states have return successors, (191), 158 states have call predecessors, (191), 175 states have call successors, (191) [2025-01-09 04:03:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1566 transitions. [2025-01-09 04:03:17,461 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1566 transitions. Word has length 213 [2025-01-09 04:03:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,461 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1566 transitions. [2025-01-09 04:03:17,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (45), 15 states have call predecessors, (45), 15 states have call successors, (45) [2025-01-09 04:03:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1566 transitions. [2025-01-09 04:03:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2025-01-09 04:03:17,466 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,466 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 04:03:17,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-09 04:03:17,671 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1563954594, now seen corresponding path program 1 times [2025-01-09 04:03:17,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712014875] [2025-01-09 04:03:17,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 263 statements into 1 equivalence classes. [2025-01-09 04:03:17,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 263 of 263 statements. [2025-01-09 04:03:17,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 93 proven. 133 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-01-09 04:03:18,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:18,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712014875] [2025-01-09 04:03:18,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712014875] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:18,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594487399] [2025-01-09 04:03:18,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:18,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:18,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:18,353 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:18,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 04:03:18,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 263 statements into 1 equivalence classes. [2025-01-09 04:03:18,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 263 of 263 statements. [2025-01-09 04:03:18,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:18,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:18,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-09 04:03:18,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 154 proven. 93 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2025-01-09 04:03:18,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 95 proven. 137 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-01-09 04:03:19,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594487399] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:19,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 16] total 29 [2025-01-09 04:03:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295016628] [2025-01-09 04:03:19,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:19,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-09 04:03:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:19,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-09 04:03:19,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2025-01-09 04:03:19,394 INFO L87 Difference]: Start difference. First operand 1403 states and 1566 transitions. Second operand has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 18 states have call successors, (61), 10 states have call predecessors, (61), 20 states have return successors, (64), 18 states have call predecessors, (64), 18 states have call successors, (64) [2025-01-09 04:03:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:20,214 INFO L93 Difference]: Finished difference Result 2266 states and 2543 transitions. [2025-01-09 04:03:20,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 04:03:20,217 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 18 states have call successors, (61), 10 states have call predecessors, (61), 20 states have return successors, (64), 18 states have call predecessors, (64), 18 states have call successors, (64) Word has length 263 [2025-01-09 04:03:20,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:20,219 INFO L225 Difference]: With dead ends: 2266 [2025-01-09 04:03:20,219 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 04:03:20,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 517 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1620, Unknown=0, NotChecked=0, Total=2070 [2025-01-09 04:03:20,222 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 699 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:20,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1359 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 04:03:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 04:03:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 04:03:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:03:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 04:03:20,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2025-01-09 04:03:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:20,224 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 04:03:20,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 18 states have call successors, (61), 10 states have call predecessors, (61), 20 states have return successors, (64), 18 states have call predecessors, (64), 18 states have call successors, (64) [2025-01-09 04:03:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 04:03:20,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 04:03:20,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:03:20,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 04:03:20,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 04:03:20,433 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:20,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 04:03:28,799 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:03:28,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:03:28 BoogieIcfgContainer [2025-01-09 04:03:28,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:03:28,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:03:28,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:03:28,809 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:03:28,813 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:07" (3/4) ... [2025-01-09 04:03:28,815 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 04:03:28,820 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2025-01-09 04:03:28,821 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2025-01-09 04:03:28,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-01-09 04:03:28,830 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 04:03:28,830 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 04:03:28,831 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:28,831 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:28,902 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:03:28,903 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:03:28,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:03:28,904 INFO L158 Benchmark]: Toolchain (without parser) took 22250.16ms. Allocated memory was 142.6MB in the beginning and 461.4MB in the end (delta: 318.8MB). Free memory was 108.6MB in the beginning and 322.3MB in the end (delta: -213.7MB). Peak memory consumption was 107.2MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,904 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:28,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.86ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 89.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.22ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 87.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,906 INFO L158 Benchmark]: Boogie Preprocessor took 48.39ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:28,906 INFO L158 Benchmark]: RCFGBuilder took 381.96ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 67.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,906 INFO L158 Benchmark]: TraceAbstraction took 21339.76ms. Allocated memory was 142.6MB in the beginning and 461.4MB in the end (delta: 318.8MB). Free memory was 67.8MB in the beginning and 330.3MB in the end (delta: -262.5MB). Peak memory consumption was 238.6MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,907 INFO L158 Benchmark]: Witness Printer took 94.14ms. Allocated memory is still 461.4MB. Free memory was 330.3MB in the beginning and 322.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:03:28,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.86ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 89.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.22ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 87.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.39ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.96ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 67.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21339.76ms. Allocated memory was 142.6MB in the beginning and 461.4MB in the end (delta: 318.8MB). Free memory was 67.8MB in the beginning and 330.3MB in the end (delta: -262.5MB). Peak memory consumption was 238.6MB. Max. memory is 16.1GB. * Witness Printer took 94.14ms. Allocated memory is still 461.4MB. Free memory was 330.3MB in the beginning and 322.3MB in the end (delta: 8.1MB). 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] - GenericResultAtLocation [Line: 206]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [206] - GenericResultAtLocation [Line: 572]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [572] - GenericResultAtLocation [Line: 670]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [670] - GenericResultAtLocation [Line: 705]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [705] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [714] - GenericResultAtLocation [Line: 923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [923] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 710]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 13, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4061 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4032 mSDsluCounter, 8011 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6415 mSDsCounter, 1310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6106 IncrementalHoareTripleChecker+Invalid, 7416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1310 mSolverCounterUnsat, 1596 mSDtfsCounter, 6106 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2238 GetRequests, 1964 SyntacticMatches, 25 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2210 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1403occurred in iteration=12, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 498 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 2373 NumberOfCodeBlocks, 2373 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3332 ConstructedInterpolants, 0 QuantifiedInterpolants, 7883 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2863 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 2977/3672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 982]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || ((((((switchedOnBeforeTS != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) && (pumpRunning == 1))) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) RESULT: Ultimate proved your program to be correct! [2025-01-09 04:03:28,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE