./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:06:37,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:06:37,702 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:06:37,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:06:37,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:06:37,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:06:37,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:06:37,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:06:37,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:06:37,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:06:37,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:06:37,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:06:37,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:06:37,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:06:37,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:06:37,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:06:37,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:06:37,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:06:37,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:06:37,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:06:37,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:06:37,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:06:37,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:06:37,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:06:37,767 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:06:37,767 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:06:37,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:06:37,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:06:37,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:06:37,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:06:37,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:06:37,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:06:37,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:06:37,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:06:37,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:06:37,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:06:37,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:06:37,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:06:37,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:06:37,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:06:37,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:06:37,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:06:37,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2024-11-19 22:06:37,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:06:37,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:06:37,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:06:37,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:06:37,985 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:06:37,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-19 22:06:39,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:06:39,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:06:39,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-19 22:06:39,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84bbae39b/7ed6f4deedad4777a98a783fe9753baa/FLAG6374ba1f7 [2024-11-19 22:06:39,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84bbae39b/7ed6f4deedad4777a98a783fe9753baa [2024-11-19 22:06:39,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:06:39,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:06:39,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:06:39,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:06:39,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:06:39,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:06:39" (1/1) ... [2024-11-19 22:06:39,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5a43a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:39, skipping insertion in model container [2024-11-19 22:06:39,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:06:39" (1/1) ... [2024-11-19 22:06:39,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:06:40,180 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_spec3_product48.cil.c[1605,1618] [2024-11-19 22:06:40,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:06:40,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:06:40,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-19 22:06:40,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-19 22:06:40,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] [2024-11-19 22:06:40,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] [2024-11-19 22:06:40,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] [2024-11-19 22:06:40,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] [2024-11-19 22:06:40,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] [2024-11-19 22:06:40,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2024-11-19 22:06:40,432 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_spec3_product48.cil.c[1605,1618] [2024-11-19 22:06:40,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:06:40,570 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:06:40,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40 WrapperNode [2024-11-19 22:06:40,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:06:40,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:06:40,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:06:40,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:06:40,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,612 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 203 [2024-11-19 22:06:40,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:06:40,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:06:40,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:06:40,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:06:40,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,660 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]. [2024-11-19 22:06:40,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:06:40,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:06:40,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:06:40,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:06:40,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (1/1) ... [2024-11-19 22:06:40,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:06:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:06:40,717 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) [2024-11-19 22:06:40,720 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 [2024-11-19 22:06:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:06:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:06:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:06:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-19 22:06:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-19 22:06:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-19 22:06:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-19 22:06:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:06:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:06:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:06:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:06:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:06:40,828 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:06:40,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:06:41,068 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-19 22:06:41,068 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:06:41,086 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:06:41,086 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:06:41,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:06:41 BoogieIcfgContainer [2024-11-19 22:06:41,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:06:41,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:06:41,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:06:41,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:06:41,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:06:39" (1/3) ... [2024-11-19 22:06:41,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4ec2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:06:41, skipping insertion in model container [2024-11-19 22:06:41,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:06:40" (2/3) ... [2024-11-19 22:06:41,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4ec2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:06:41, skipping insertion in model container [2024-11-19 22:06:41,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:06:41" (3/3) ... [2024-11-19 22:06:41,094 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2024-11-19 22:06:41,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:06:41,108 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:06:41,155 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:06:41,165 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;@365ef7e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:06:41,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:06:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-19 22:06:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 22:06:41,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:41,178 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] [2024-11-19 22:06:41,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:41,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:41,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1105602066, now seen corresponding path program 1 times [2024-11-19 22:06:41,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:41,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291388976] [2024-11-19 22:06:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 22:06:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:06:41,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:41,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291388976] [2024-11-19 22:06:41,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291388976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:41,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:06:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:06:41,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910718383] [2024-11-19 22:06:41,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:06:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:41,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:06:41,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:06:41,469 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:41,534 INFO L93 Difference]: Finished difference Result 198 states and 267 transitions. [2024-11-19 22:06:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:06:41,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-19 22:06:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:41,545 INFO L225 Difference]: With dead ends: 198 [2024-11-19 22:06:41,545 INFO L226 Difference]: Without dead ends: 94 [2024-11-19 22:06:41,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:06:41,552 INFO L432 NwaCegarLoop]: 130 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, 130 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 [2024-11-19 22:06:41,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:06:41,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-19 22:06:41,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-19 22:06:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 77 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 22:06:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-19 22:06:41,596 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 25 [2024-11-19 22:06:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:41,596 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-19 22:06:41,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-19 22:06:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 22:06:41,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:41,602 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] [2024-11-19 22:06:41,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:06:41,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:41,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash 961787241, now seen corresponding path program 1 times [2024-11-19 22:06:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:41,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419712970] [2024-11-19 22:06:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:41,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 22:06:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:06:41,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:41,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419712970] [2024-11-19 22:06:41,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419712970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:41,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:06:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:06:41,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018215004] [2024-11-19 22:06:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:41,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:06:41,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:41,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:06:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:06:41,679 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:41,690 INFO L93 Difference]: Finished difference Result 149 states and 191 transitions. [2024-11-19 22:06:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:06:41,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-19 22:06:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:41,692 INFO L225 Difference]: With dead ends: 149 [2024-11-19 22:06:41,692 INFO L226 Difference]: Without dead ends: 85 [2024-11-19 22:06:41,693 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 [2024-11-19 22:06:41,694 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 17 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:41,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 194 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:06:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-19 22:06:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-19 22:06:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 71 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 22:06:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-19 22:06:41,701 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 26 [2024-11-19 22:06:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:41,702 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-19 22:06:41,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-19 22:06:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 22:06:41,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:41,703 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] [2024-11-19 22:06:41,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:06:41,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:41,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash 121385351, now seen corresponding path program 1 times [2024-11-19 22:06:41,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:41,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738198274] [2024-11-19 22:06:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:41,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:06:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:06:41,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:41,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738198274] [2024-11-19 22:06:41,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738198274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:06:41,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:06:41,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987443925] [2024-11-19 22:06:41,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:41,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:06:41,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:06:41,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:06:41,769 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:41,797 INFO L93 Difference]: Finished difference Result 239 states and 312 transitions. [2024-11-19 22:06:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:06:41,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-19 22:06:41,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:41,799 INFO L225 Difference]: With dead ends: 239 [2024-11-19 22:06:41,799 INFO L226 Difference]: Without dead ends: 161 [2024-11-19 22:06:41,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:06:41,801 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 87 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:41,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 227 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:06:41,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-19 22:06:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2024-11-19 22:06:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 115 states have (on average 1.3391304347826087) internal successors, (154), 130 states have internal predecessors, (154), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 22:06:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2024-11-19 22:06:41,820 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 31 [2024-11-19 22:06:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:41,821 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2024-11-19 22:06:41,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2024-11-19 22:06:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 22:06:41,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:41,822 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] [2024-11-19 22:06:41,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:06:41,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:41,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash 662362398, now seen corresponding path program 1 times [2024-11-19 22:06:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400162063] [2024-11-19 22:06:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:41,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:06:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:06:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400162063] [2024-11-19 22:06:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400162063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:41,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:06:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:06:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128728326] [2024-11-19 22:06:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:41,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:06:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:06:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:06:41,930 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-19 22:06:42,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:42,002 INFO L93 Difference]: Finished difference Result 448 states and 603 transitions. [2024-11-19 22:06:42,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:06:42,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2024-11-19 22:06:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:42,005 INFO L225 Difference]: With dead ends: 448 [2024-11-19 22:06:42,005 INFO L226 Difference]: Without dead ends: 297 [2024-11-19 22:06:42,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:06:42,007 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 71 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:42,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 401 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:06:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-19 22:06:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-19 22:06:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 214 states have (on average 1.3177570093457944) internal successors, (282), 241 states have internal predecessors, (282), 52 states have call successors, (52), 32 states have call predecessors, (52), 30 states have return successors, (54), 36 states have call predecessors, (54), 52 states have call successors, (54) [2024-11-19 22:06:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 388 transitions. [2024-11-19 22:06:42,032 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 388 transitions. Word has length 34 [2024-11-19 22:06:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:42,032 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 388 transitions. [2024-11-19 22:06:42,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-19 22:06:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 388 transitions. [2024-11-19 22:06:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-19 22:06:42,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:42,035 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] [2024-11-19 22:06:42,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:06:42,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:42,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:42,035 INFO L85 PathProgramCache]: Analyzing trace with hash 640417315, now seen corresponding path program 1 times [2024-11-19 22:06:42,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:42,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154870340] [2024-11-19 22:06:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:42,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:42,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:06:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:06:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:06:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:06:42,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154870340] [2024-11-19 22:06:42,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154870340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:06:42,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:06:42,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:06:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45870735] [2024-11-19 22:06:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:06:42,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:06:42,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:06:42,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:06:42,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:06:42,082 INFO L87 Difference]: Start difference. First operand 297 states and 388 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:42,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:06:42,186 INFO L93 Difference]: Finished difference Result 745 states and 987 transitions. [2024-11-19 22:06:42,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:06:42,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-19 22:06:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:06:42,189 INFO L225 Difference]: With dead ends: 745 [2024-11-19 22:06:42,189 INFO L226 Difference]: Without dead ends: 455 [2024-11-19 22:06:42,191 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 [2024-11-19 22:06:42,192 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 70 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:06:42,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 175 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:06:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-19 22:06:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 446. [2024-11-19 22:06:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 333 states have (on average 1.2762762762762763) internal successors, (425), 357 states have internal predecessors, (425), 61 states have call successors, (61), 53 states have call predecessors, (61), 51 states have return successors, (79), 56 states have call predecessors, (79), 61 states have call successors, (79) [2024-11-19 22:06:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 565 transitions. [2024-11-19 22:06:42,238 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 565 transitions. Word has length 36 [2024-11-19 22:06:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:06:42,239 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 565 transitions. [2024-11-19 22:06:42,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:06:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 565 transitions. [2024-11-19 22:06:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 22:06:42,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:06:42,240 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] [2024-11-19 22:06:42,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:06:42,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:06:42,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:06:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1136588412, now seen corresponding path program 1 times [2024-11-19 22:06:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:06:42,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869471622] [2024-11-19 22:06:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:06:42,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:06:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 22:06:42,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 22:06:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 22:06:42,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 22:06:42,284 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 22:06:42,285 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:06:42,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:06:42,288 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-19 22:06:42,316 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:06:42,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:06:42 BoogieIcfgContainer [2024-11-19 22:06:42,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:06:42,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:06:42,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:06:42,319 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:06:42,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:06:41" (3/4) ... [2024-11-19 22:06:42,320 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 22:06:42,368 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:06:42,368 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:06:42,369 INFO L158 Benchmark]: Toolchain (without parser) took 2489.13ms. Allocated memory was 182.5MB in the beginning and 247.5MB in the end (delta: 65.0MB). Free memory was 153.6MB in the beginning and 184.2MB in the end (delta: -30.6MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,369 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:06:42,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.51ms. Allocated memory is still 182.5MB. Free memory was 152.9MB in the beginning and 131.6MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,370 INFO L158 Benchmark]: Boogie Preprocessor took 68.63ms. Allocated memory is still 182.5MB. Free memory was 129.5MB in the beginning and 126.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,371 INFO L158 Benchmark]: RCFGBuilder took 404.66ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 107.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,371 INFO L158 Benchmark]: TraceAbstraction took 1229.29ms. Allocated memory was 182.5MB in the beginning and 247.5MB in the end (delta: 65.0MB). Free memory was 107.8MB in the beginning and 187.3MB in the end (delta: -79.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:06:42,371 INFO L158 Benchmark]: Witness Printer took 49.83ms. Allocated memory is still 247.5MB. Free memory was 187.3MB in the beginning and 184.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:06:42,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.51ms. Allocated memory is still 182.5MB. Free memory was 152.9MB in the beginning and 131.6MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.63ms. Allocated memory is still 182.5MB. Free memory was 129.5MB in the beginning and 126.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 404.66ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 107.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1229.29ms. Allocated memory was 182.5MB in the beginning and 247.5MB in the end (delta: 65.0MB). Free memory was 107.8MB in the beginning and 187.3MB in the end (delta: -79.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.83ms. Allocated memory is still 247.5MB. Free memory was 187.3MB in the beginning and 184.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] - GenericResultAtLocation [Line: 133]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] - GenericResultAtLocation [Line: 232]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] - GenericResultAtLocation [Line: 456]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] * 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L564] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L566] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L572] tmp = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L576] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE waterLevel < 2 [L158] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L576] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp___1) [L604] CALL stopSystem() [L437] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] RET stopSystem() [L611] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L246] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L253] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L117] CALL, EXPR isPumpRunning() [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L117] RET, EXPR isPumpRunning() [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) [L123] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 1127 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 551 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 576 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-19 22:06:42,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE