./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 ef69c83623105b68e3213a0f6e5530f40867a5bc091f925c8e4d647572a9cdfc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:17:53,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:17:53,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:17:53,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:17:53,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:17:53,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:17:53,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:17:53,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:17:53,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:17:53,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:17:53,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:17:53,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:17:53,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:17:53,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:17:53,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:17:53,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:17:53,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:17:53,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:17:53,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:17:53,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:17:53,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:17:53,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:17:53,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:17:53,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:17:53,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:17:53,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:17:53,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:17:53,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:17:53,437 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:17:53,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:17:53,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:17:53,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:17:53,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:17:53,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:17:53,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:17:53,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:17:53,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:17:53,440 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef69c83623105b68e3213a0f6e5530f40867a5bc091f925c8e4d647572a9cdfc [2024-11-09 23:17:53,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:17:53,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:17:53,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:17:53,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:17:53,672 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:17:53,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2024-11-09 23:17:55,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:17:55,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:17:55,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2024-11-09 23:17:55,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff29505d/2216374ab9d84947a04e48200e15de31/FLAG085daa3e6 [2024-11-09 23:17:55,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff29505d/2216374ab9d84947a04e48200e15de31 [2024-11-09 23:17:55,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:17:55,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:17:55,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:17:55,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:17:55,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:17:55,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c79692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55, skipping insertion in model container [2024-11-09 23:17:55,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:17:55,770 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[16086,16099] [2024-11-09 23:17:55,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:17:55,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:17:55,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-09 23:17:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [121] [2024-11-09 23:17:55,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [150] [2024-11-09 23:17:55,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [324] [2024-11-09 23:17:55,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [423] [2024-11-09 23:17:55,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [789] [2024-11-09 23:17:55,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [798] [2024-11-09 23:17:55,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [833] [2024-11-09 23:17:55,867 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[16086,16099] [2024-11-09 23:17:55,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:17:55,900 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:17:55,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55 WrapperNode [2024-11-09 23:17:55,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:17:55,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:17:55,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:17:55,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:17:55,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,955 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 176 [2024-11-09 23:17:55,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:17:55,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:17:55,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:17:55,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:17:55,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,967 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,977 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]. [2024-11-09 23:17:55,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:55,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:17:55,996 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:17:55,996 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:17:55,996 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:17:55,997 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (1/1) ... [2024-11-09 23:17:56,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:17:56,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:17:56,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:17:56,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:17:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:17:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:17:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:17:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:17:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:17:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:17:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:17:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:17:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:17:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:17:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:17:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:17:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:17:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:17:56,135 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:17:56,137 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:17:56,270 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-09 23:17:56,270 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L924-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; [2024-11-09 23:17:56,270 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L251-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-09 23:17:56,270 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L910-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; [2024-11-09 23:17:56,324 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L830-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2024-11-09 23:17:56,325 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L420-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-09 23:17:56,342 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-09 23:17:56,342 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:17:56,357 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:17:56,359 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:17:56,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:56 BoogieIcfgContainer [2024-11-09 23:17:56,360 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:17:56,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:17:56,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:17:56,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:17:56,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:17:55" (1/3) ... [2024-11-09 23:17:56,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355367e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:56, skipping insertion in model container [2024-11-09 23:17:56,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:55" (2/3) ... [2024-11-09 23:17:56,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355367e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:56, skipping insertion in model container [2024-11-09 23:17:56,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:56" (3/3) ... [2024-11-09 23:17:56,368 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2024-11-09 23:17:56,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:17:56,380 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:17:56,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:17:56,424 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;@7a5d2442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:17:56,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:17:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 63 states have (on average 1.380952380952381) internal successors, (87), 69 states have internal predecessors, (87), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 23:17:56,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 23:17:56,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:56,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:56,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:56,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:56,437 INFO L85 PathProgramCache]: Analyzing trace with hash -583628450, now seen corresponding path program 1 times [2024-11-09 23:17:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:56,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226962641] [2024-11-09 23:17:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:56,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:56,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226962641] [2024-11-09 23:17:56,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226962641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:56,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:56,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:17:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610880918] [2024-11-09 23:17:56,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:56,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:17:56,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:56,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:17:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:17:56,591 INFO L87 Difference]: Start difference. First operand has 78 states, 63 states have (on average 1.380952380952381) internal successors, (87), 69 states have internal predecessors, (87), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:56,612 INFO L93 Difference]: Finished difference Result 147 states and 200 transitions. [2024-11-09 23:17:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:17:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 23:17:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:56,619 INFO L225 Difference]: With dead ends: 147 [2024-11-09 23:17:56,619 INFO L226 Difference]: Without dead ends: 67 [2024-11-09 23:17:56,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:17:56,626 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:56,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:56,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-09 23:17:56,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-09 23:17:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 23:17:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2024-11-09 23:17:56,654 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 21 [2024-11-09 23:17:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:56,654 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2024-11-09 23:17:56,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2024-11-09 23:17:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 23:17:56,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:56,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:56,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:17:56,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:56,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1019190268, now seen corresponding path program 1 times [2024-11-09 23:17:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:56,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365057411] [2024-11-09 23:17:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:56,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365057411] [2024-11-09 23:17:56,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365057411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:56,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:56,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:17:56,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045406333] [2024-11-09 23:17:56,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:56,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:56,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:56,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:56,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:56,739 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:56,749 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2024-11-09 23:17:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-09 23:17:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:56,751 INFO L225 Difference]: With dead ends: 95 [2024-11-09 23:17:56,751 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 23:17:56,751 INFO L431 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 [2024-11-09 23:17:56,752 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 16 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 123 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 [2024-11-09 23:17:56,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 23:17:56,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 23:17:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 23:17:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2024-11-09 23:17:56,758 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 23 [2024-11-09 23:17:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:56,759 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2024-11-09 23:17:56,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2024-11-09 23:17:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 23:17:56,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:56,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:56,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:17:56,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:56,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:56,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1233846121, now seen corresponding path program 1 times [2024-11-09 23:17:56,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:56,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703699842] [2024-11-09 23:17:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:56,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:56,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:56,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703699842] [2024-11-09 23:17:56,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703699842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:56,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:56,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:17:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017968861] [2024-11-09 23:17:56,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:56,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:56,831 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:56,847 INFO L93 Difference]: Finished difference Result 156 states and 205 transitions. [2024-11-09 23:17:56,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:56,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 23:17:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:56,849 INFO L225 Difference]: With dead ends: 156 [2024-11-09 23:17:56,849 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 23:17:56,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:56,851 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:56,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 147 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 23:17:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2024-11-09 23:17:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 90 states have internal predecessors, (111), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 23:17:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 131 transitions. [2024-11-09 23:17:56,865 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 131 transitions. Word has length 25 [2024-11-09 23:17:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:56,865 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 131 transitions. [2024-11-09 23:17:56,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:56,866 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2024-11-09 23:17:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 23:17:56,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:56,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:56,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:17:56,867 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:56,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash 465525996, now seen corresponding path program 1 times [2024-11-09 23:17:56,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:56,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621806922] [2024-11-09 23:17:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:56,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:56,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:17:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:56,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:56,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621806922] [2024-11-09 23:17:56,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621806922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:56,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:56,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:17:56,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258376097] [2024-11-09 23:17:56,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:56,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:56,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:56,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:56,911 INFO L87 Difference]: Start difference. First operand 100 states and 131 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:56,943 INFO L93 Difference]: Finished difference Result 261 states and 350 transitions. [2024-11-09 23:17:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-09 23:17:56,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:56,945 INFO L225 Difference]: With dead ends: 261 [2024-11-09 23:17:56,945 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 23:17:56,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:56,946 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 61 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:56,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 23:17:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2024-11-09 23:17:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 132 states have (on average 1.356060606060606) internal successors, (179), 143 states have internal predecessors, (179), 16 states have call successors, (16), 16 states have call predecessors, (16), 16 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2024-11-09 23:17:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 215 transitions. [2024-11-09 23:17:56,963 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 215 transitions. Word has length 30 [2024-11-09 23:17:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:56,963 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 215 transitions. [2024-11-09 23:17:56,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 215 transitions. [2024-11-09 23:17:56,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:17:56,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:56,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:56,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:17:56,965 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:56,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1857886149, now seen corresponding path program 1 times [2024-11-09 23:17:56,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:56,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646833987] [2024-11-09 23:17:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:56,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:57,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:57,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646833987] [2024-11-09 23:17:57,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646833987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:57,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:57,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:17:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867716722] [2024-11-09 23:17:57,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:57,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:17:57,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:57,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:17:57,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:17:57,083 INFO L87 Difference]: Start difference. First operand 165 states and 215 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:57,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:57,169 INFO L93 Difference]: Finished difference Result 450 states and 614 transitions. [2024-11-09 23:17:57,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:17:57,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-09 23:17:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:57,174 INFO L225 Difference]: With dead ends: 450 [2024-11-09 23:17:57,174 INFO L226 Difference]: Without dead ends: 292 [2024-11-09 23:17:57,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:17:57,179 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 34 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:57,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 259 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-09 23:17:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-09 23:17:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 250 states have internal predecessors, (310), 30 states have call successors, (30), 30 states have call predecessors, (30), 26 states have return successors, (42), 26 states have call predecessors, (42), 30 states have call successors, (42) [2024-11-09 23:17:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 382 transitions. [2024-11-09 23:17:57,223 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 382 transitions. Word has length 29 [2024-11-09 23:17:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:57,224 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 382 transitions. [2024-11-09 23:17:57,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:17:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 382 transitions. [2024-11-09 23:17:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 23:17:57,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:57,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:57,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:17:57,227 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:57,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash 5816099, now seen corresponding path program 1 times [2024-11-09 23:17:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:57,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373277037] [2024-11-09 23:17:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:57,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:57,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373277037] [2024-11-09 23:17:57,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373277037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:57,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:57,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:57,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77912603] [2024-11-09 23:17:57,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:57,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:57,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:57,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:57,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:57,331 INFO L87 Difference]: Start difference. First operand 292 states and 382 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:57,537 INFO L93 Difference]: Finished difference Result 366 states and 475 transitions. [2024-11-09 23:17:57,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:17:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-09 23:17:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:57,544 INFO L225 Difference]: With dead ends: 366 [2024-11-09 23:17:57,544 INFO L226 Difference]: Without dead ends: 363 [2024-11-09 23:17:57,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:17:57,545 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 122 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:57,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 271 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-09 23:17:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 360. [2024-11-09 23:17:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 291 states have (on average 1.302405498281787) internal successors, (379), 316 states have internal predecessors, (379), 34 states have call successors, (34), 30 states have call predecessors, (34), 34 states have return successors, (54), 30 states have call predecessors, (54), 34 states have call successors, (54) [2024-11-09 23:17:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 467 transitions. [2024-11-09 23:17:57,582 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 467 transitions. Word has length 33 [2024-11-09 23:17:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:57,583 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 467 transitions. [2024-11-09 23:17:57,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 467 transitions. [2024-11-09 23:17:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 23:17:57,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:57,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:57,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:17:57,589 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:57,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash 885896426, now seen corresponding path program 1 times [2024-11-09 23:17:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188355731] [2024-11-09 23:17:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:57,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188355731] [2024-11-09 23:17:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188355731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:57,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:57,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132824979] [2024-11-09 23:17:57,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:57,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:57,686 INFO L87 Difference]: Start difference. First operand 360 states and 467 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:57,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:57,805 INFO L93 Difference]: Finished difference Result 734 states and 965 transitions. [2024-11-09 23:17:57,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:17:57,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-09 23:17:57,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:57,808 INFO L225 Difference]: With dead ends: 734 [2024-11-09 23:17:57,808 INFO L226 Difference]: Without dead ends: 381 [2024-11-09 23:17:57,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:17:57,809 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 39 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:57,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 286 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-09 23:17:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 378. [2024-11-09 23:17:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 309 states have (on average 1.284789644012945) internal successors, (397), 334 states have internal predecessors, (397), 34 states have call successors, (34), 30 states have call predecessors, (34), 34 states have return successors, (54), 30 states have call predecessors, (54), 34 states have call successors, (54) [2024-11-09 23:17:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 485 transitions. [2024-11-09 23:17:57,824 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 485 transitions. Word has length 38 [2024-11-09 23:17:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:57,824 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 485 transitions. [2024-11-09 23:17:57,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 485 transitions. [2024-11-09 23:17:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 23:17:57,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:57,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:57,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:17:57,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:57,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 592493419, now seen corresponding path program 1 times [2024-11-09 23:17:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90344414] [2024-11-09 23:17:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:57,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:57,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90344414] [2024-11-09 23:17:57,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90344414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:57,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:57,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:57,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782731937] [2024-11-09 23:17:57,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:57,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:57,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:57,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:57,893 INFO L87 Difference]: Start difference. First operand 378 states and 485 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:58,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:58,027 INFO L93 Difference]: Finished difference Result 712 states and 919 transitions. [2024-11-09 23:17:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 23:17:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-09 23:17:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:58,029 INFO L225 Difference]: With dead ends: 712 [2024-11-09 23:17:58,029 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 23:17:58,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:17:58,031 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 142 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:58,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 320 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:58,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 23:17:58,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 322. [2024-11-09 23:17:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 265 states have (on average 1.2679245283018867) internal successors, (336), 286 states have internal predecessors, (336), 28 states have call successors, (28), 24 states have call predecessors, (28), 28 states have return successors, (38), 26 states have call predecessors, (38), 28 states have call successors, (38) [2024-11-09 23:17:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 402 transitions. [2024-11-09 23:17:58,049 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 402 transitions. Word has length 38 [2024-11-09 23:17:58,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:58,050 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 402 transitions. [2024-11-09 23:17:58,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:58,050 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 402 transitions. [2024-11-09 23:17:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 23:17:58,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:58,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:58,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:17:58,051 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:58,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:58,051 INFO L85 PathProgramCache]: Analyzing trace with hash -687370259, now seen corresponding path program 1 times [2024-11-09 23:17:58,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:58,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579853769] [2024-11-09 23:17:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:58,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:58,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579853769] [2024-11-09 23:17:58,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579853769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:58,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:58,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982863421] [2024-11-09 23:17:58,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:58,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:58,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:58,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:58,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:58,122 INFO L87 Difference]: Start difference. First operand 322 states and 402 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:58,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:58,268 INFO L93 Difference]: Finished difference Result 728 states and 966 transitions. [2024-11-09 23:17:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:17:58,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-09 23:17:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:58,272 INFO L225 Difference]: With dead ends: 728 [2024-11-09 23:17:58,272 INFO L226 Difference]: Without dead ends: 486 [2024-11-09 23:17:58,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:17:58,273 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 85 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:58,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 436 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-09 23:17:58,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 483. [2024-11-09 23:17:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 394 states have (on average 1.2411167512690355) internal successors, (489), 421 states have internal predecessors, (489), 44 states have call successors, (44), 38 states have call predecessors, (44), 44 states have return successors, (78), 42 states have call predecessors, (78), 44 states have call successors, (78) [2024-11-09 23:17:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 611 transitions. [2024-11-09 23:17:58,301 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 611 transitions. Word has length 38 [2024-11-09 23:17:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:58,302 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 611 transitions. [2024-11-09 23:17:58,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 611 transitions. [2024-11-09 23:17:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:17:58,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:58,304 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:17:58,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:17:58,304 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:58,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash -68449572, now seen corresponding path program 1 times [2024-11-09 23:17:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819298453] [2024-11-09 23:17:58,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:17:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 23:17:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:58,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819298453] [2024-11-09 23:17:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819298453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:17:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536616960] [2024-11-09 23:17:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:58,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:17:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:17:58,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:17:58,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:17:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:58,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:17:58,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:17:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:58,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:17:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:58,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536616960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:17:58,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:17:58,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2024-11-09 23:17:58,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789688214] [2024-11-09 23:17:58,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:17:58,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:17:58,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:17:58,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:17:58,673 INFO L87 Difference]: Start difference. First operand 483 states and 611 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:17:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:58,935 INFO L93 Difference]: Finished difference Result 1131 states and 1510 transitions. [2024-11-09 23:17:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 23:17:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2024-11-09 23:17:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:58,938 INFO L225 Difference]: With dead ends: 1131 [2024-11-09 23:17:58,938 INFO L226 Difference]: Without dead ends: 728 [2024-11-09 23:17:58,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 126 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:17:58,939 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 161 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:58,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 502 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-09 23:17:58,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 712. [2024-11-09 23:17:58,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 576 states have (on average 1.2604166666666667) internal successors, (726), 614 states have internal predecessors, (726), 68 states have call successors, (68), 60 states have call predecessors, (68), 67 states have return successors, (130), 65 states have call predecessors, (130), 68 states have call successors, (130) [2024-11-09 23:17:58,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 924 transitions. [2024-11-09 23:17:58,964 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 924 transitions. Word has length 62 [2024-11-09 23:17:58,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:58,964 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 924 transitions. [2024-11-09 23:17:58,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:17:58,964 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 924 transitions. [2024-11-09 23:17:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:17:58,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:58,966 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 23:17:58,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:17:59,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:17:59,167 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -719831151, now seen corresponding path program 1 times [2024-11-09 23:17:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995088162] [2024-11-09 23:17:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:59,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:59,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:17:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:17:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:17:59,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:59,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995088162] [2024-11-09 23:17:59,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995088162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:17:59,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698721596] [2024-11-09 23:17:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:59,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:17:59,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:17:59,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:17:59,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:17:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:59,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:17:59,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:17:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:17:59,304 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:17:59,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698721596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:59,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:17:59,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-11-09 23:17:59,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204605772] [2024-11-09 23:17:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:59,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:59,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:59,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:59,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:59,306 INFO L87 Difference]: Start difference. First operand 712 states and 924 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 23:17:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:59,328 INFO L93 Difference]: Finished difference Result 874 states and 1136 transitions. [2024-11-09 23:17:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:59,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 80 [2024-11-09 23:17:59,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:59,331 INFO L225 Difference]: With dead ends: 874 [2024-11-09 23:17:59,331 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 23:17:59,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:59,332 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 34 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:59,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:59,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 23:17:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 324. [2024-11-09 23:17:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 261 states have (on average 1.2030651340996168) internal successors, (314), 280 states have internal predecessors, (314), 31 states have call successors, (31), 27 states have call predecessors, (31), 31 states have return successors, (58), 28 states have call predecessors, (58), 31 states have call successors, (58) [2024-11-09 23:17:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 403 transitions. [2024-11-09 23:17:59,344 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 403 transitions. Word has length 80 [2024-11-09 23:17:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:59,344 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 403 transitions. [2024-11-09 23:17:59,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 23:17:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 403 transitions. [2024-11-09 23:17:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 23:17:59,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:59,345 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 23:17:59,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:17:59,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 23:17:59,546 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:59,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash -65443637, now seen corresponding path program 2 times [2024-11-09 23:17:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450600380] [2024-11-09 23:17:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:59,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 23:17:59,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 23:17:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 23:17:59,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 23:17:59,584 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 23:17:59,585 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:17:59,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:17:59,588 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:59,626 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:17:59,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:17:59 BoogieIcfgContainer [2024-11-09 23:17:59,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:17:59,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:17:59,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:17:59,628 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:17:59,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:56" (3/4) ... [2024-11-09 23:17:59,629 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 23:17:59,694 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:17:59,694 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:17:59,694 INFO L158 Benchmark]: Toolchain (without parser) took 4315.73ms. Allocated memory was 184.5MB in the beginning and 304.1MB in the end (delta: 119.5MB). Free memory was 111.9MB in the beginning and 151.3MB in the end (delta: -39.4MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,695 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:17:59,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.59ms. Allocated memory is still 184.5MB. Free memory was 111.5MB in the beginning and 144.7MB in the end (delta: -33.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.67ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 142.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,695 INFO L158 Benchmark]: Boogie Preprocessor took 38.84ms. Allocated memory is still 184.5MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,695 INFO L158 Benchmark]: IcfgBuilder took 363.79ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 122.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,696 INFO L158 Benchmark]: TraceAbstraction took 3266.16ms. Allocated memory was 184.5MB in the beginning and 304.1MB in the end (delta: 119.5MB). Free memory was 121.7MB in the beginning and 157.6MB in the end (delta: -35.9MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,696 INFO L158 Benchmark]: Witness Printer took 66.30ms. Allocated memory is still 304.1MB. Free memory was 157.6MB in the beginning and 151.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:17:59,697 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 184.5MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.59ms. Allocated memory is still 184.5MB. Free memory was 111.5MB in the beginning and 144.7MB in the end (delta: -33.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.67ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 142.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.84ms. Allocated memory is still 184.5MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 363.79ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 122.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3266.16ms. Allocated memory was 184.5MB in the beginning and 304.1MB in the end (delta: 119.5MB). Free memory was 121.7MB in the beginning and 157.6MB in the end (delta: -35.9MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. * Witness Printer took 66.30ms. Allocated memory is still 304.1MB. Free memory was 157.6MB in the beginning and 151.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [121] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [150] - GenericResultAtLocation [Line: 324]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [324] - GenericResultAtLocation [Line: 423]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [423] - GenericResultAtLocation [Line: 789]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [789] - GenericResultAtLocation [Line: 798]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [798] - GenericResultAtLocation [Line: 833]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [833] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 794]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L325] int cleanupTimeShifts = 4; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] int retValue_acc ; [L402] int tmp ; [L406] FCALL select_helpers() [L407] FCALL select_features() [L408] CALL, EXPR valid_product() [L825] int retValue_acc ; [L828] retValue_acc = 1 [L829] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L408] RET, EXPR valid_product() [L408] tmp = valid_product() [L410] COND TRUE \read(tmp) [L412] FCALL setup() [L413] CALL runTest() [L392] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE \read(systemActive) [L174] CALL processEnvironment() [L194] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] COND TRUE ! pumpRunning [L199] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L914] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L917] COND FALSE !(waterLevel < 2) [L921] retValue_acc = 0 [L922] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND FALSE !(\read(tmp)) [L302] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L199] RET, EXPR isHighWaterLevel() [L199] tmp = isHighWaterLevel() [L201] COND TRUE \read(tmp) [L203] CALL activatePump() [L222] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L203] RET activatePump() [L174] RET processEnvironment() [L180] CALL __utac_acc__Specification4_spec__1() [L126] int tmp ; [L127] int tmp___0 ; [L131] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] RET, EXPR getWaterLevel() [L131] tmp = getWaterLevel() [L133] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L180] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L165] COND TRUE \read(pumpRunning) [L167] CALL lowerWaterLevel() [L840] COND TRUE waterLevel > 0 [L841] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L167] RET lowerWaterLevel() [L172] COND TRUE \read(systemActive) [L174] CALL processEnvironment() [L194] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L197] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L212] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L174] RET processEnvironment() [L180] CALL __utac_acc__Specification4_spec__1() [L126] int tmp ; [L127] int tmp___0 ; [L131] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] RET, EXPR getWaterLevel() [L131] tmp = getWaterLevel() [L133] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L180] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L110] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND TRUE \read(pumpRunning) [L167] CALL lowerWaterLevel() [L840] COND TRUE waterLevel > 0 [L841] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L167] RET lowerWaterLevel() [L172] COND TRUE \read(systemActive) [L174] CALL processEnvironment() [L194] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L197] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L212] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L174] RET processEnvironment() [L180] CALL __utac_acc__Specification4_spec__1() [L126] int tmp ; [L127] int tmp___0 ; [L131] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L131] RET, EXPR getWaterLevel() [L131] tmp = getWaterLevel() [L133] COND TRUE tmp == 0 [L135] CALL, EXPR isPumpRunning() [L246] int retValue_acc ; [L249] retValue_acc = pumpRunning [L250] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L135] RET, EXPR isPumpRunning() [L135] tmp___0 = isPumpRunning() [L137] COND TRUE \read(tmp___0) [L139] CALL __automaton_fail() [L794] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 747 mSDsluCounter, 2724 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1842 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 656 IncrementalHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 882 mSDtfsCounter, 656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 237 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=712occurred in iteration=10, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 71 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 1062 SizeOfPredicates, 2 NumberOfNonLiveVariables, 501 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 123/142 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-09 23:17:59,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE