./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_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:00:16,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:00:16,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:00:16,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:00:16,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:00:16,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:00:16,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:00:16,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:00:16,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:00:16,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:00:16,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:00:16,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:00:16,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:00:16,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:00:16,483 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:00:16,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:00:16,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:00:16,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:00:16,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:00:16,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:00:16,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:00:16,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:00:16,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:00:16,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:00:16,489 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:00:16,489 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:00:16,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:00:16,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:00:16,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:00:16,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:00:16,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:00:16,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:00:16,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:16,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:00:16,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:00:16,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:00:16,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:00:16,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:00:16,491 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:00:16,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:00:16,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:00:16,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:00:16,495 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 [2024-10-11 03:00:16,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:00:16,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:00:16,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:00:16,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:00:16,902 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:00:16,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2024-10-11 03:00:18,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:00:18,724 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:00:18,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2024-10-11 03:00:18,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6c4e0ea4f/d08b26cb46124533b583bc95ca1702b6/FLAGfa9c91a53 [2024-10-11 03:00:18,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6c4e0ea4f/d08b26cb46124533b583bc95ca1702b6 [2024-10-11 03:00:18,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:00:18,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:00:18,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:18,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:00:18,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:00:18,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:18" (1/1) ... [2024-10-11 03:00:18,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af5c082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:18, skipping insertion in model container [2024-10-11 03:00:18,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:18" (1/1) ... [2024-10-11 03:00:18,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:00:18,974 WARN L248 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_product32.cil.c[2567,2580] [2024-10-11 03:00:19,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:19,085 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:00:19,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [49] [2024-10-11 03:00:19,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] [2024-10-11 03:00:19,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] [2024-10-11 03:00:19,103 WARN L248 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_product32.cil.c[2567,2580] [2024-10-11 03:00:19,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:19,187 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:00:19,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19 WrapperNode [2024-10-11 03:00:19,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:19,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:19,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:00:19,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:00:19,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,241 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 198 [2024-10-11 03:00:19,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:19,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:00:19,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:00:19,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:00:19,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,279 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]. [2024-10-11 03:00:19,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:00:19,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:00:19,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:00:19,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:00:19,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (1/1) ... [2024-10-11 03:00:19,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:19,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:19,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:00:19,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:00:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:00:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:00:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:00:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:00:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:00:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:00:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:00:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:00:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:00:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:00:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:00:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 03:00:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 03:00:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:00:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:00:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:00:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:00:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:00:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:00:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:00:19,546 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:00:19,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:00:19,760 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-11 03:00:19,760 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:00:19,806 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:00:19,807 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:00:19,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:19 BoogieIcfgContainer [2024-10-11 03:00:19,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:00:19,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:00:19,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:00:19,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:00:19,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:00:18" (1/3) ... [2024-10-11 03:00:19,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7b693c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:19, skipping insertion in model container [2024-10-11 03:00:19,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:19" (2/3) ... [2024-10-11 03:00:19,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7b693c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:19, skipping insertion in model container [2024-10-11 03:00:19,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:19" (3/3) ... [2024-10-11 03:00:19,814 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2024-10-11 03:00:19,829 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:00:19,830 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:00:19,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:00:19,893 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;@1b1e9287, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:00:19,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:00:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 55 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 03:00:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 03:00:19,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:19,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:19,905 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:19,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:19,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1995855383, now seen corresponding path program 1 times [2024-10-11 03:00:19,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:19,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602462260] [2024-10-11 03:00:19,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:19,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602462260] [2024-10-11 03:00:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602462260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:20,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629928691] [2024-10-11 03:00:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:00:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:00:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:20,128 INFO L87 Difference]: Start difference. First operand has 70 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 55 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-10-11 03:00:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,179 INFO L93 Difference]: Finished difference Result 138 states and 199 transitions. [2024-10-11 03:00:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:00:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2024-10-11 03:00:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,190 INFO L225 Difference]: With dead ends: 138 [2024-10-11 03:00:20,190 INFO L226 Difference]: Without dead ends: 65 [2024-10-11 03:00:20,193 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 [2024-10-11 03:00:20,196 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-11 03:00:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-10-11 03:00:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 03:00:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 88 transitions. [2024-10-11 03:00:20,233 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 88 transitions. Word has length 12 [2024-10-11 03:00:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,233 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 88 transitions. [2024-10-11 03:00:20,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-10-11 03:00:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 88 transitions. [2024-10-11 03:00:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 03:00:20,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:20,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:20,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:00:20,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:20,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -728696051, now seen corresponding path program 1 times [2024-10-11 03:00:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:20,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749066382] [2024-10-11 03:00:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:20,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749066382] [2024-10-11 03:00:20,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749066382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:20,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622992047] [2024-10-11 03:00:20,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:20,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:20,312 INFO L87 Difference]: Start difference. First operand 65 states and 88 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-11 03:00:20,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,342 INFO L93 Difference]: Finished difference Result 100 states and 134 transitions. [2024-10-11 03:00:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2024-10-11 03:00:20,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,344 INFO L225 Difference]: With dead ends: 100 [2024-10-11 03:00:20,344 INFO L226 Difference]: Without dead ends: 57 [2024-10-11 03:00:20,345 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 [2024-10-11 03:00:20,346 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 114 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-11 03:00:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-10-11 03:00:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 46 states have internal predecessors, (55), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-11 03:00:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2024-10-11 03:00:20,355 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 13 [2024-10-11 03:00:20,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,355 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2024-10-11 03:00:20,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-11 03:00:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2024-10-11 03:00:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 03:00:20,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:20,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:20,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:00:20,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:20,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:20,358 INFO L85 PathProgramCache]: Analyzing trace with hash 137538078, now seen corresponding path program 1 times [2024-10-11 03:00:20,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:20,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664878702] [2024-10-11 03:00:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:20,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664878702] [2024-10-11 03:00:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664878702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:00:20,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639948783] [2024-10-11 03:00:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:20,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:20,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:20,434 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-11 03:00:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,497 INFO L93 Difference]: Finished difference Result 145 states and 198 transitions. [2024-10-11 03:00:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:20,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-10-11 03:00:20,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,499 INFO L225 Difference]: With dead ends: 145 [2024-10-11 03:00:20,499 INFO L226 Difference]: Without dead ends: 90 [2024-10-11 03:00:20,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:20,501 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 72 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 173 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-11 03:00:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2024-10-11 03:00:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 71 states have internal predecessors, (88), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (16), 10 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 03:00:20,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-10-11 03:00:20,516 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 16 [2024-10-11 03:00:20,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,516 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-10-11 03:00:20,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-11 03:00:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-10-11 03:00:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 03:00:20,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:20,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:20,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:00:20,518 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:20,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash 183563730, now seen corresponding path program 1 times [2024-10-11 03:00:20,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301878729] [2024-10-11 03:00:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301878729] [2024-10-11 03:00:20,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301878729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:20,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857135331] [2024-10-11 03:00:20,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:20,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:20,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:20,615 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 03:00:20,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,678 INFO L93 Difference]: Finished difference Result 247 states and 352 transitions. [2024-10-11 03:00:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:20,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2024-10-11 03:00:20,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,680 INFO L225 Difference]: With dead ends: 247 [2024-10-11 03:00:20,680 INFO L226 Difference]: Without dead ends: 162 [2024-10-11 03:00:20,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:20,681 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 185 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-11 03:00:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-11 03:00:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 111 states have (on average 1.4324324324324325) internal successors, (159), 130 states have internal predecessors, (159), 30 states have call successors, (30), 22 states have call predecessors, (30), 20 states have return successors, (35), 18 states have call predecessors, (35), 30 states have call successors, (35) [2024-10-11 03:00:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 224 transitions. [2024-10-11 03:00:20,701 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 224 transitions. Word has length 19 [2024-10-11 03:00:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,702 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 224 transitions. [2024-10-11 03:00:20,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 03:00:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 224 transitions. [2024-10-11 03:00:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:00:20,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:20,704 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] [2024-10-11 03:00:20,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:00:20,704 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:20,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash -893288809, now seen corresponding path program 1 times [2024-10-11 03:00:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226922520] [2024-10-11 03:00:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:20,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226922520] [2024-10-11 03:00:20,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226922520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:20,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575765683] [2024-10-11 03:00:20,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:20,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:20,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:20,756 INFO L87 Difference]: Start difference. First operand 162 states and 224 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:00:20,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,782 INFO L93 Difference]: Finished difference Result 280 states and 395 transitions. [2024-10-11 03:00:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:20,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 21 [2024-10-11 03:00:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,784 INFO L225 Difference]: With dead ends: 280 [2024-10-11 03:00:20,784 INFO L226 Difference]: Without dead ends: 120 [2024-10-11 03:00:20,786 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 [2024-10-11 03:00:20,786 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 36 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-11 03:00:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-10-11 03:00:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 94 states have internal predecessors, (115), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (18), 14 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 03:00:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2024-10-11 03:00:20,801 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 21 [2024-10-11 03:00:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,802 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2024-10-11 03:00:20,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:00:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2024-10-11 03:00:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:00:20,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:20,803 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] [2024-10-11 03:00:20,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:00:20,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:20,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1667451436, now seen corresponding path program 1 times [2024-10-11 03:00:20,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499622331] [2024-10-11 03:00:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:20,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:20,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499622331] [2024-10-11 03:00:20,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499622331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:20,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:20,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:00:20,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957471595] [2024-10-11 03:00:20,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:20,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:00:20,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:00:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:20,872 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:20,948 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2024-10-11 03:00:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:00:20,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2024-10-11 03:00:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:20,950 INFO L225 Difference]: With dead ends: 122 [2024-10-11 03:00:20,950 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:20,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:20,952 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:20,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 59 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:20,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:20,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-11 03:00:20,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:20,954 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:20,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:00:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:20,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:20,957 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:20,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:00:20,960 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 03:00:20,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:21,367 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:21,397 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:21,401 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-11 03:00:21,402 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) [2024-10-11 03:00:21,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:21 BoogieIcfgContainer [2024-10-11 03:00:21,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:21,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:21,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:21,405 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:21,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:19" (3/4) ... [2024-10-11 03:00:21,408 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:21,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:00:21,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-11 03:00:21,423 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-10-11 03:00:21,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:21,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:21,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:21,425 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:21,535 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:21,536 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:21,536 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:21,538 INFO L158 Benchmark]: Toolchain (without parser) took 2779.20ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 151.8MB in the beginning and 123.1MB in the end (delta: 28.6MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,539 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:21,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.81ms. Allocated memory is still 186.6MB. Free memory was 151.5MB in the beginning and 138.7MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.19ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 136.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,540 INFO L158 Benchmark]: Boogie Preprocessor took 45.65ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 134.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,540 INFO L158 Benchmark]: RCFGBuilder took 516.01ms. Allocated memory is still 186.6MB. Free memory was 134.6MB in the beginning and 136.8MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,540 INFO L158 Benchmark]: TraceAbstraction took 1595.61ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 135.9MB in the beginning and 130.5MB in the end (delta: 5.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,541 INFO L158 Benchmark]: Witness Printer took 130.80ms. Allocated memory is still 245.4MB. Free memory was 129.4MB in the beginning and 123.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:00:21,542 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.81ms. Allocated memory is still 186.6MB. Free memory was 151.5MB in the beginning and 138.7MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.19ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 136.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.65ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 134.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.01ms. Allocated memory is still 186.6MB. Free memory was 134.6MB in the beginning and 136.8MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1595.61ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 135.9MB in the beginning and 130.5MB in the end (delta: 5.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 130.80ms. Allocated memory is still 245.4MB. Free memory was 129.4MB in the beginning and 123.1MB 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,"Specification4_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] - GenericResultAtLocation [Line: 319]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 121]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 70 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, 219 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 311 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 335 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 809]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 917]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - ProcedureContractResult [Line: 801]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 717]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: ((pumpRunning == 0) && (0 != systemActive)) - ProcedureContractResult [Line: 257]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 693]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) - ProcedureContractResult [Line: 128]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 245]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 725]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (0 != systemActive)) - ProcedureContractResult [Line: 809]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: 0 Ensures: 0 RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:21,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 Result: TRUE