./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_spec2_product54.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_spec2_product54.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 af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:58:47,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:58:47,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:58:47,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:58:47,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:58:47,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:58:47,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:58:47,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:58:47,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:58:47,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:58:47,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:58:47,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:58:47,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:58:47,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:58:47,940 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:58:47,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:58:47,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:58:47,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:58:47,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:58:47,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:58:47,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:58:47,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:58:47,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:58:47,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:58:47,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:58:47,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:58:47,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:58:47,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:58:47,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:58:47,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:58:47,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:58:47,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:58:47,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:58:47,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:58:47,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:58:47,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:58:47,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:58:47,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:58:47,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:58:47,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:58:47,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:58:47,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:58:47,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 [2024-10-11 02:58:48,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:58:48,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:58:48,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:58:48,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:58:48,212 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:58:48,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2024-10-11 02:58:49,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:58:49,935 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:58:49,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2024-10-11 02:58:49,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c1c0c2fe7/6c9050fcceb0490780f68dfcf607567b/FLAG40124070e [2024-10-11 02:58:49,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c1c0c2fe7/6c9050fcceb0490780f68dfcf607567b [2024-10-11 02:58:49,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:58:49,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:58:49,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:58:49,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:58:49,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:58:49,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:58:49" (1/1) ... [2024-10-11 02:58:49,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca59160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:49, skipping insertion in model container [2024-10-11 02:58:49,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:58:49" (1/1) ... [2024-10-11 02:58:50,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:58:50,350 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_spec2_product54.cil.c[19335,19348] [2024-10-11 02:58:50,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:58:50,368 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:58:50,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-10-11 02:58:50,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [155] [2024-10-11 02:58:50,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [197] [2024-10-11 02:58:50,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2024-10-11 02:58:50,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [631] [2024-10-11 02:58:50,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] [2024-10-11 02:58:50,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [972] [2024-10-11 02:58:50,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1007] [2024-10-11 02:58:50,439 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_spec2_product54.cil.c[19335,19348] [2024-10-11 02:58:50,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:58:50,463 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:58:50,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50 WrapperNode [2024-10-11 02:58:50,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:58:50,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:58:50,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:58:50,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:58:50,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,515 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 227 [2024-10-11 02:58:50,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:58:50,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:58:50,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:58:50,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:58:50,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,547 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 02:58:50,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:58:50,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:58:50,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:58:50,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:58:50,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (1/1) ... [2024-10-11 02:58:50,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:58:50,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:58:50,607 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 02:58:50,611 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 02:58:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:58:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 02:58:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 02:58:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-11 02:58:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-11 02:58:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:58:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:58:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:58:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:58:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:58:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:58:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 02:58:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 02:58:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 02:58:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 02:58:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 02:58:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 02:58:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:58:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 02:58:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 02:58:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:58:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:58:50,754 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:58:50,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:58:51,105 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-10-11 02:58:51,105 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:58:51,183 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:58:51,184 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 02:58:51,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:58:51 BoogieIcfgContainer [2024-10-11 02:58:51,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:58:51,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:58:51,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:58:51,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:58:51,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:58:49" (1/3) ... [2024-10-11 02:58:51,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fae745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:58:51, skipping insertion in model container [2024-10-11 02:58:51,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:50" (2/3) ... [2024-10-11 02:58:51,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fae745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:58:51, skipping insertion in model container [2024-10-11 02:58:51,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:58:51" (3/3) ... [2024-10-11 02:58:51,193 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2024-10-11 02:58:51,206 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:58:51,206 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:58:51,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:58:51,265 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;@2a156627, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:58:51,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:58:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 54 states have (on average 1.537037037037037) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 02:58:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 02:58:51,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:51,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:51,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2107328077, now seen corresponding path program 1 times [2024-10-11 02:58:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422775002] [2024-10-11 02:58:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:51,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:58:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,421 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 02:58:51,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:51,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422775002] [2024-10-11 02:58:51,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422775002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:51,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:51,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 02:58:51,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876116720] [2024-10-11 02:58:51,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:51,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:58:51,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:58:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:58:51,449 INFO L87 Difference]: Start difference. First operand has 81 states, 54 states have (on average 1.537037037037037) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-10-11 02:58:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:51,517 INFO L93 Difference]: Finished difference Result 160 states and 231 transitions. [2024-10-11 02:58:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:58:51,521 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2024-10-11 02:58:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:51,532 INFO L225 Difference]: With dead ends: 160 [2024-10-11 02:58:51,532 INFO L226 Difference]: Without dead ends: 76 [2024-10-11 02:58:51,536 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 [2024-10-11 02:58:51,540 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:51,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:58:51,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-11 02:58:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-11 02:58:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 02:58:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-10-11 02:58:51,585 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 17 [2024-10-11 02:58:51,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:51,586 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-10-11 02:58:51,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-10-11 02:58:51,587 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2024-10-11 02:58:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 02:58:51,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:51,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:51,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:58:51,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:51,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1402978933, now seen corresponding path program 1 times [2024-10-11 02:58:51,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244962727] [2024-10-11 02:58:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:51,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:58:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,739 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 02:58:51,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:51,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244962727] [2024-10-11 02:58:51,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244962727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:51,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:51,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:58:51,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561702531] [2024-10-11 02:58:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:51,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:58:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:51,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:58:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:58:51,745 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-11 02:58:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:51,807 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2024-10-11 02:58:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:58:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2024-10-11 02:58:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:51,811 INFO L225 Difference]: With dead ends: 125 [2024-10-11 02:58:51,811 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 02:58:51,812 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 [2024-10-11 02:58:51,815 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:51,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 147 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:58:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 02:58:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-11 02:58:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 55 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 02:58:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2024-10-11 02:58:51,836 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 18 [2024-10-11 02:58:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:51,837 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2024-10-11 02:58:51,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-11 02:58:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2024-10-11 02:58:51,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 02:58:51,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:51,838 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 02:58:51,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:58:51,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:51,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 562169158, now seen corresponding path program 1 times [2024-10-11 02:58:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550459161] [2024-10-11 02:58:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:51,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:51,955 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 02:58:51,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:51,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550459161] [2024-10-11 02:58:51,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550459161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:51,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:51,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:58:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358169153] [2024-10-11 02:58:51,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:51,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:58:51,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:51,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:58:51,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:58:51,961 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 02:58:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:52,027 INFO L93 Difference]: Finished difference Result 134 states and 185 transitions. [2024-10-11 02:58:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:58:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21 [2024-10-11 02:58:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:52,029 INFO L225 Difference]: With dead ends: 134 [2024-10-11 02:58:52,030 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 02:58:52,030 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 [2024-10-11 02:58:52,031 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 88 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:52,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 78 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:58:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 02:58:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-11 02:58:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.434782608695652) internal successors, (66), 55 states have internal predecessors, (66), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 02:58:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2024-10-11 02:58:52,050 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 21 [2024-10-11 02:58:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:52,050 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2024-10-11 02:58:52,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-11 02:58:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2024-10-11 02:58:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 02:58:52,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:52,053 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:52,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:58:52,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:52,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:52,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2112081969, now seen corresponding path program 1 times [2024-10-11 02:58:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:52,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490502312] [2024-10-11 02:58:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:52,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 02:58:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:58:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:58:52,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:52,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490502312] [2024-10-11 02:58:52,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490502312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:52,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:52,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 02:58:52,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579558869] [2024-10-11 02:58:52,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:52,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:58:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:58:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 02:58:52,174 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 02:58:52,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:52,414 INFO L93 Difference]: Finished difference Result 205 states and 279 transitions. [2024-10-11 02:58:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:58:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-11 02:58:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:52,416 INFO L225 Difference]: With dead ends: 205 [2024-10-11 02:58:52,416 INFO L226 Difference]: Without dead ends: 139 [2024-10-11 02:58:52,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 02:58:52,418 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 134 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:52,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 154 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:58:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-11 02:58:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2024-10-11 02:58:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 101 states have internal predecessors, (128), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2024-10-11 02:58:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2024-10-11 02:58:52,442 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 31 [2024-10-11 02:58:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:52,443 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2024-10-11 02:58:52,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 02:58:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2024-10-11 02:58:52,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 02:58:52,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:52,444 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] [2024-10-11 02:58:52,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:58:52,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:52,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:52,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1119024381, now seen corresponding path program 1 times [2024-10-11 02:58:52,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:52,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332680453] [2024-10-11 02:58:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:52,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:58:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,675 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 02:58:52,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:52,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332680453] [2024-10-11 02:58:52,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332680453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:52,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:58:52,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207185011] [2024-10-11 02:58:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:52,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:58:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:52,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:58:52,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:58:52,681 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:58:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:52,866 INFO L93 Difference]: Finished difference Result 268 states and 362 transitions. [2024-10-11 02:58:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:58:52,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-11 02:58:52,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:52,868 INFO L225 Difference]: With dead ends: 268 [2024-10-11 02:58:52,868 INFO L226 Difference]: Without dead ends: 137 [2024-10-11 02:58:52,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:58:52,875 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 52 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:52,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 229 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:58:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-10-11 02:58:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-10-11 02:58:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 95 states have (on average 1.368421052631579) internal successors, (130), 103 states have internal predecessors, (130), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2024-10-11 02:58:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 179 transitions. [2024-10-11 02:58:52,904 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 179 transitions. Word has length 38 [2024-10-11 02:58:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:52,904 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 179 transitions. [2024-10-11 02:58:52,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:58:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 179 transitions. [2024-10-11 02:58:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 02:58:52,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:52,910 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] [2024-10-11 02:58:52,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:58:52,910 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:52,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:52,911 INFO L85 PathProgramCache]: Analyzing trace with hash -469323521, now seen corresponding path program 1 times [2024-10-11 02:58:52,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542894618] [2024-10-11 02:58:52,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:52,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:58:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,025 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 02:58:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542894618] [2024-10-11 02:58:53,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542894618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:53,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:53,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:58:53,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657020405] [2024-10-11 02:58:53,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:53,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:58:53,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:58:53,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:58:53,029 INFO L87 Difference]: Start difference. First operand 135 states and 179 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:58:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:53,194 INFO L93 Difference]: Finished difference Result 272 states and 372 transitions. [2024-10-11 02:58:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:58:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-11 02:58:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:53,196 INFO L225 Difference]: With dead ends: 272 [2024-10-11 02:58:53,196 INFO L226 Difference]: Without dead ends: 139 [2024-10-11 02:58:53,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:58:53,200 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 52 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:53,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 226 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:58:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-11 02:58:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2024-10-11 02:58:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 105 states have internal predecessors, (132), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2024-10-11 02:58:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2024-10-11 02:58:53,227 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 38 [2024-10-11 02:58:53,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:53,228 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2024-10-11 02:58:53,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:58:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2024-10-11 02:58:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 02:58:53,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:53,229 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] [2024-10-11 02:58:53,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:58:53,232 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:53,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2136700033, now seen corresponding path program 1 times [2024-10-11 02:58:53,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:53,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238936554] [2024-10-11 02:58:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:58:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,337 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 02:58:53,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238936554] [2024-10-11 02:58:53,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238936554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:53,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:53,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:58:53,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200333796] [2024-10-11 02:58:53,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:53,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:58:53,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:53,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:58:53,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:58:53,341 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 02:58:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:53,603 INFO L93 Difference]: Finished difference Result 395 states and 539 transitions. [2024-10-11 02:58:53,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:58:53,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-11 02:58:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:53,607 INFO L225 Difference]: With dead ends: 395 [2024-10-11 02:58:53,607 INFO L226 Difference]: Without dead ends: 260 [2024-10-11 02:58:53,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:58:53,612 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 199 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:53,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 237 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:58:53,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-11 02:58:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2024-10-11 02:58:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 179 states have (on average 1.318435754189944) internal successors, (236), 191 states have internal predecessors, (236), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2024-10-11 02:58:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 334 transitions. [2024-10-11 02:58:53,656 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 334 transitions. Word has length 38 [2024-10-11 02:58:53,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:53,658 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 334 transitions. [2024-10-11 02:58:53,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 02:58:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 334 transitions. [2024-10-11 02:58:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 02:58:53,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:53,660 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, 1, 1, 1] [2024-10-11 02:58:53,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:58:53,663 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:53,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -925963219, now seen corresponding path program 1 times [2024-10-11 02:58:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:53,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805036017] [2024-10-11 02:58:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:58:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:58:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:53,783 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 02:58:53,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:53,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805036017] [2024-10-11 02:58:53,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805036017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:53,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:53,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:58:53,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219847079] [2024-10-11 02:58:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:53,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:58:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:58:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:58:53,796 INFO L87 Difference]: Start difference. First operand 252 states and 334 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:58:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:54,009 INFO L93 Difference]: Finished difference Result 500 states and 669 transitions. [2024-10-11 02:58:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:58:54,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-11 02:58:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:54,011 INFO L225 Difference]: With dead ends: 500 [2024-10-11 02:58:54,012 INFO L226 Difference]: Without dead ends: 250 [2024-10-11 02:58:54,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:58:54,014 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 106 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:54,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 188 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:58:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-10-11 02:58:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2024-10-11 02:58:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 175 states have (on average 1.28) internal successors, (224), 187 states have internal predecessors, (224), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2024-10-11 02:58:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 322 transitions. [2024-10-11 02:58:54,051 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 322 transitions. Word has length 41 [2024-10-11 02:58:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:54,052 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 322 transitions. [2024-10-11 02:58:54,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:58:54,053 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 322 transitions. [2024-10-11 02:58:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 02:58:54,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:54,056 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, 1, 1, 1, 1] [2024-10-11 02:58:54,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:58:54,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:54,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -543242457, now seen corresponding path program 1 times [2024-10-11 02:58:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:54,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111597805] [2024-10-11 02:58:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:54,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:58:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:58:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 02:58:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,131 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 02:58:54,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:54,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111597805] [2024-10-11 02:58:54,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111597805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:54,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:58:54,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:58:54,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631404331] [2024-10-11 02:58:54,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:54,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:58:54,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:54,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:58:54,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:58:54,135 INFO L87 Difference]: Start difference. First operand 248 states and 322 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:58:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:54,524 INFO L93 Difference]: Finished difference Result 510 states and 708 transitions. [2024-10-11 02:58:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:58:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-10-11 02:58:54,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:54,528 INFO L225 Difference]: With dead ends: 510 [2024-10-11 02:58:54,528 INFO L226 Difference]: Without dead ends: 508 [2024-10-11 02:58:54,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:58:54,529 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 276 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:54,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 139 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:58:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-10-11 02:58:54,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2024-10-11 02:58:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 319 states have (on average 1.2884012539184952) internal successors, (411), 346 states have internal predecessors, (411), 70 states have call successors, (70), 51 states have call predecessors, (70), 64 states have return successors, (156), 70 states have call predecessors, (156), 70 states have call successors, (156) [2024-10-11 02:58:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 637 transitions. [2024-10-11 02:58:54,582 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 637 transitions. Word has length 42 [2024-10-11 02:58:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:54,583 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 637 transitions. [2024-10-11 02:58:54,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:58:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 637 transitions. [2024-10-11 02:58:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 02:58:54,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:54,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:54,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:58:54,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:54,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1542653930, now seen corresponding path program 1 times [2024-10-11 02:58:54,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:54,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554849840] [2024-10-11 02:58:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:54,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:58:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:58:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:58:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:58:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:58:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 02:58:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554849840] [2024-10-11 02:58:54,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554849840] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:58:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888501095] [2024-10-11 02:58:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:54,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:58:54,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:58:54,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:58:54,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:58:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:54,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 02:58:54,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:58:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:58:55,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:58:55,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888501095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:58:55,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:58:55,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2024-10-11 02:58:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305620585] [2024-10-11 02:58:55,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:58:55,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:58:55,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:58:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:58:55,006 INFO L87 Difference]: Start difference. First operand 454 states and 637 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:58:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:55,077 INFO L93 Difference]: Finished difference Result 775 states and 1117 transitions. [2024-10-11 02:58:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:58:55,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2024-10-11 02:58:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:55,081 INFO L225 Difference]: With dead ends: 775 [2024-10-11 02:58:55,081 INFO L226 Difference]: Without dead ends: 371 [2024-10-11 02:58:55,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:58:55,083 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 48 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:55,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 165 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:58:55,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-11 02:58:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-10-11 02:58:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 260 states have (on average 1.2615384615384615) internal successors, (328), 283 states have internal predecessors, (328), 58 states have call successors, (58), 44 states have call predecessors, (58), 52 states have return successors, (90), 57 states have call predecessors, (90), 58 states have call successors, (90) [2024-10-11 02:58:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 476 transitions. [2024-10-11 02:58:55,122 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 476 transitions. Word has length 79 [2024-10-11 02:58:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:55,123 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 476 transitions. [2024-10-11 02:58:55,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:58:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 476 transitions. [2024-10-11 02:58:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 02:58:55,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:55,126 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:55,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 02:58:55,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 02:58:55,327 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:55,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1829344842, now seen corresponding path program 1 times [2024-10-11 02:58:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:55,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834543593] [2024-10-11 02:58:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:55,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:58:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:58:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:58:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:58:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:58:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:58:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:58:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:58:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:58:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 02:58:55,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:58:55,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834543593] [2024-10-11 02:58:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834543593] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:58:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986423153] [2024-10-11 02:58:55,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:55,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:58:55,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:58:55,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:58:55,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:58:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:58:55,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:58:55,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:58:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:58:55,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:58:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:58:55,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986423153] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:58:55,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:58:55,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 6] total 16 [2024-10-11 02:58:55,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528830280] [2024-10-11 02:58:55,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:58:55,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 02:58:55,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:58:55,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 02:58:55,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:58:55,981 INFO L87 Difference]: Start difference. First operand 371 states and 476 transitions. Second operand has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) [2024-10-11 02:58:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:58:59,609 INFO L93 Difference]: Finished difference Result 1841 states and 2598 transitions. [2024-10-11 02:58:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-10-11 02:58:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) Word has length 87 [2024-10-11 02:58:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:58:59,619 INFO L225 Difference]: With dead ends: 1841 [2024-10-11 02:58:59,619 INFO L226 Difference]: Without dead ends: 1472 [2024-10-11 02:58:59,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5213 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1380, Invalid=12426, Unknown=0, NotChecked=0, Total=13806 [2024-10-11 02:58:59,627 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1274 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 3610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:58:59,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1127 Invalid, 3610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 02:58:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-10-11 02:58:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1219. [2024-10-11 02:58:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 848 states have (on average 1.179245283018868) internal successors, (1000), 913 states have internal predecessors, (1000), 192 states have call successors, (192), 149 states have call predecessors, (192), 178 states have return successors, (311), 190 states have call predecessors, (311), 192 states have call successors, (311) [2024-10-11 02:58:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1503 transitions. [2024-10-11 02:58:59,730 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1503 transitions. Word has length 87 [2024-10-11 02:58:59,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:58:59,730 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1503 transitions. [2024-10-11 02:58:59,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) [2024-10-11 02:58:59,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1503 transitions. [2024-10-11 02:58:59,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 02:58:59,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:58:59,732 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:58:59,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:58:59,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:58:59,933 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:58:59,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:58:59,934 INFO L85 PathProgramCache]: Analyzing trace with hash 596302452, now seen corresponding path program 1 times [2024-10-11 02:58:59,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:58:59,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823225620] [2024-10-11 02:58:59,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:58:59,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:58:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:59:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:59:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:59:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:59:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:59:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:59:00,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823225620] [2024-10-11 02:59:00,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823225620] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837701096] [2024-10-11 02:59:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:00,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:00,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:00,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:59:00,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:59:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:00,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:59:00,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 02:59:00,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:59:00,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837701096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:00,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:59:00,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2024-10-11 02:59:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069843807] [2024-10-11 02:59:00,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:00,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:00,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:59:00,325 INFO L87 Difference]: Start difference. First operand 1219 states and 1503 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 02:59:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:00,505 INFO L93 Difference]: Finished difference Result 2012 states and 2483 transitions. [2024-10-11 02:59:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 02:59:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 91 [2024-10-11 02:59:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:00,508 INFO L225 Difference]: With dead ends: 2012 [2024-10-11 02:59:00,509 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 02:59:00,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:59:00,514 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 24 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:00,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 568 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:59:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 02:59:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 02:59:00,515 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 02:59:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 02:59:00,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-10-11 02:59:00,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:00,517 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 02:59:00,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 02:59:00,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 02:59:00,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 02:59:00,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 02:59:00,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 02:59:00,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:00,724 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:00,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 02:59:06,682 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 02:59:06,703 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~pumpRunning~0)|))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and .cse2 .cse0 (<= 1 ~waterLevel~0) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse2 .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 .cse2 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse2 .cse1))) [2024-10-11 02:59:06,719 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse5 .cse3) (and .cse4 .cse1 .cse2 .cse3))) (or (not .cse2) (= ~methaneLevelCritical~0 0)) (or (<= 1 ~methaneLevelCritical~0) .cse2))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse5 .cse3) (and .cse4 .cse1 .cse2 .cse3))) (or (not .cse2) (= ~methaneLevelCritical~0 0)) (or .cse2 (< 0 ~methaneLevelCritical~0))))) [2024-10-11 02:59:06,724 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 02:59:06,746 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse3 (= |old(~methAndRunningLastTime~0)| 0)) (.cse4 (= |old(~pumpRunning~0)| 0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse4) (and .cse5 .cse3 .cse1 .cse2) (and .cse5 .cse3 .cse1 .cse4) (and .cse5 .cse1 (<= 2 |old(~waterLevel~0)|) .cse2)))) Eliminated clause: (let ((.cse4 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse3) (and .cse4 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse5 .cse3))) [2024-10-11 02:59:06,773 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (<= 1 |old(~pumpRunning~0)|)) (and .cse2 (<= 1 ~methaneLevelCritical~0) .cse1 .cse3) (and .cse2 .cse0 .cse1 .cse3)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2024-10-11 02:59:06,789 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse4 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse3) (and .cse4 .cse2 .cse3 (<= 2 |old(~waterLevel~0)|)) (and .cse0 .cse1 .cse5 .cse3))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse4 .cse1 .cse5 .cse3) (and .cse0 .cse1 .cse5 .cse3))) [2024-10-11 02:59:06,801 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (<= 1 |old(~pumpRunning~0)|)) (and .cse2 (<= 1 ~methaneLevelCritical~0) .cse1 .cse3) (and .cse2 .cse0 .cse1 .cse3)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2024-10-11 02:59:06,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:59:06 BoogieIcfgContainer [2024-10-11 02:59:06,811 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 02:59:06,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 02:59:06,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 02:59:06,813 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 02:59:06,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:58:51" (3/4) ... [2024-10-11 02:59:06,816 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 02:59:06,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 02:59:06,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:06,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 02:59:06,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 02:59:06,831 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-11 02:59:06,831 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 02:59:06,832 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 02:59:06,832 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 02:59:06,832 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 02:59:06,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 02:59:06,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 02:59:06,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 02:59:06,940 INFO L158 Benchmark]: Toolchain (without parser) took 16962.55ms. Allocated memory was 167.8MB in the beginning and 331.4MB in the end (delta: 163.6MB). Free memory was 109.7MB in the beginning and 220.2MB in the end (delta: -110.5MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,940 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 02:59:06,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.73ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 87.5MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.84ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 85.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,941 INFO L158 Benchmark]: Boogie Preprocessor took 55.55ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,942 INFO L158 Benchmark]: RCFGBuilder took 611.32ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 189.3MB in the end (delta: -106.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,942 INFO L158 Benchmark]: TraceAbstraction took 15624.92ms. Allocated memory was 228.6MB in the beginning and 331.4MB in the end (delta: 102.8MB). Free memory was 188.3MB in the beginning and 227.5MB in the end (delta: -39.3MB). Peak memory consumption was 191.8MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,943 INFO L158 Benchmark]: Witness Printer took 127.75ms. Allocated memory is still 331.4MB. Free memory was 227.5MB in the beginning and 220.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 02:59:06,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.73ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 87.5MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.84ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 85.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.55ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.32ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 189.3MB in the end (delta: -106.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15624.92ms. Allocated memory was 228.6MB in the beginning and 331.4MB in the end (delta: 102.8MB). Free memory was 188.3MB in the beginning and 227.5MB in the end (delta: -39.3MB). Peak memory consumption was 191.8MB. Max. memory is 16.1GB. * Witness Printer took 127.75ms. Allocated memory is still 331.4MB. Free memory was 227.5MB in the beginning and 220.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [155] - GenericResultAtLocation [Line: 197]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [197] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [631] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] - GenericResultAtLocation [Line: 972]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [972] - GenericResultAtLocation [Line: 1007]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1007] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 1012]: 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 10 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2305 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2264 mSDsluCounter, 3352 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2259 mSDsCounter, 966 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4074 IncrementalHoareTripleChecker+Invalid, 5040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 966 mSolverCounterUnsat, 1093 mSDtfsCounter, 4074 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 655 GetRequests, 484 SyntacticMatches, 3 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5242 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1219occurred in iteration=11, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 327 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 798 NumberOfCodeBlocks, 798 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 869 ConstructedInterpolants, 0 QuantifiedInterpolants, 1604 SizeOfPredicates, 3 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 216/232 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: 574]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 758]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= waterLevel))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((pumpRunning == 0) && (((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((1 <= methaneLevelCritical) && (1 == systemActive)) && (1 <= waterLevel)) && (1 <= \old(pumpRunning)))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 665]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) - ProcedureContractResult [Line: 896]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 <= \old(methaneLevelCritical))) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) == 0))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) - ProcedureContractResult [Line: 908]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (\result == methaneLevelCritical)) - ProcedureContractResult [Line: 641]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((\old(pumpRunning) < 1) || (methaneLevelCritical < 1)) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive))) && ((0 < waterLevel) || (\old(waterLevel) < 2))) && (((((((1 <= methaneLevelCritical) && (2 <= \old(waterLevel))) && (1 <= \old(pumpRunning))) || ((((methaneLevelCritical == 0) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((methaneLevelCritical == 0) && (1 <= \old(pumpRunning)))) || (((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 <= \old(pumpRunning)))) || ((((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0)))) && ((\old(waterLevel) != 0) || (waterLevel == 0))) && (((\old(pumpRunning) < 1) || ((pumpRunning == \old(pumpRunning)) && (1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)))) && ((methAndRunningLastTime == 0) || (methaneLevelCritical != 0))) && (((\old(pumpRunning) != 0) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || (((1 <= pumpRunning) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 673]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 <= waterLevel)))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) - ProcedureContractResult [Line: 884]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((0 < waterLevel) || (\old(waterLevel) != 0)) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (2 <= \old(waterLevel)))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)))) && ((\old(waterLevel) < 1) || (1 < waterLevel))) - ProcedureContractResult [Line: 699]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 <= waterLevel)))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) RESULT: Ultimate proved your program to be correct! [2024-10-11 02:59:06,972 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