./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:18:26,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:18:26,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:18:26,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:18:26,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:18:26,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:18:26,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:18:26,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:18:26,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:18:26,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:18:26,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:18:26,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:18:26,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:18:26,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:18:26,798 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:18:26,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:18:26,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:18:26,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:18:26,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:18:26,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:18:26,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:18:26,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:18:26,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:18:26,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:18:26,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:18:26,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:18:26,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:18:26,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:18:26,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:18:26,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:18:26,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:18:26,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:18:26,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:26,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:18:26,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:18:26,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:18:26,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:18:26,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:18:26,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:18:26,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:18:26,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:18:26,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:18:26,808 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2024-11-18 14:18:27,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:18:27,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:18:27,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:18:27,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:18:27,111 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:18:27,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2024-11-18 14:18:28,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:18:28,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:18:28,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2024-11-18 14:18:28,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296cc1e71/651a6aad4bef4b7bb29d2f84403dd4ec/FLAGbf08b0684 [2024-11-18 14:18:28,982 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296cc1e71/651a6aad4bef4b7bb29d2f84403dd4ec [2024-11-18 14:18:28,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:18:28,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:18:28,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:28,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:18:28,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:18:28,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:28" (1/1) ... [2024-11-18 14:18:28,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9edee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:28, skipping insertion in model container [2024-11-18 14:18:29,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:28" (1/1) ... [2024-11-18 14:18:29,053 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:18:29,259 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2024-11-18 14:18:29,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:29,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:18:29,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-18 14:18:29,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] [2024-11-18 14:18:29,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-11-18 14:18:29,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] [2024-11-18 14:18:29,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] [2024-11-18 14:18:29,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] [2024-11-18 14:18:29,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] [2024-11-18 14:18:29,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] [2024-11-18 14:18:29,447 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2024-11-18 14:18:29,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:29,516 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:18:29,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29 WrapperNode [2024-11-18 14:18:29,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:29,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:29,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:18:29,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:18:29,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,570 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 218 [2024-11-18 14:18:29,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:29,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:18:29,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:18:29,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:18:29,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,618 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:18:29,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:18:29,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:18:29,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:18:29,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:18:29,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (1/1) ... [2024-11-18 14:18:29,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:29,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:29,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:18:29,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:18:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:18:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:18:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:18:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:18:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:18:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:18:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:18:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-18 14:18:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-18 14:18:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:18:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:18:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:18:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:18:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:18:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:18:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:18:29,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:18:29,821 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:18:30,144 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-18 14:18:30,144 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:18:30,163 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:18:30,163 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:18:30,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:30 BoogieIcfgContainer [2024-11-18 14:18:30,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:18:30,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:18:30,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:18:30,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:18:30,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:18:28" (1/3) ... [2024-11-18 14:18:30,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e892e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:30, skipping insertion in model container [2024-11-18 14:18:30,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:29" (2/3) ... [2024-11-18 14:18:30,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e892e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:30, skipping insertion in model container [2024-11-18 14:18:30,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:30" (3/3) ... [2024-11-18 14:18:30,174 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2024-11-18 14:18:30,193 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:18:30,193 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:18:30,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:18:30,277 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;@11033109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:18:30,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:18:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 14:18:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 14:18:30,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:30,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:30,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:30,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash 528843452, now seen corresponding path program 1 times [2024-11-18 14:18:30,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:30,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091805816] [2024-11-18 14:18:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:30,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:30,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091805816] [2024-11-18 14:18:30,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091805816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:30,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:18:30,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592619625] [2024-11-18 14:18:30,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:30,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:18:30,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:30,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:18:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:18:30,523 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:30,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:30,550 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2024-11-18 14:18:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:18:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (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 23 [2024-11-18 14:18:30,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:30,560 INFO L225 Difference]: With dead ends: 176 [2024-11-18 14:18:30,560 INFO L226 Difference]: Without dead ends: 83 [2024-11-18 14:18:30,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:18:30,567 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:30,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:30,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-18 14:18:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-18 14:18:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:18:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2024-11-18 14:18:30,618 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2024-11-18 14:18:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:30,621 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2024-11-18 14:18:30,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2024-11-18 14:18:30,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 14:18:30,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:30,625 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] [2024-11-18 14:18:30,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:18:30,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:30,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1324255922, now seen corresponding path program 1 times [2024-11-18 14:18:30,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:30,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305623758] [2024-11-18 14:18:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:30,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:30,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305623758] [2024-11-18 14:18:30,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305623758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:30,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:30,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346933225] [2024-11-18 14:18:30,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:30,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:30,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:30,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:30,765 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:30,791 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2024-11-18 14:18:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:30,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2024-11-18 14:18:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:30,793 INFO L225 Difference]: With dead ends: 131 [2024-11-18 14:18:30,794 INFO L226 Difference]: Without dead ends: 74 [2024-11-18 14:18:30,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:30,797 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 13 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:30,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-18 14:18:30,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-18 14:18:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:18:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2024-11-18 14:18:30,817 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2024-11-18 14:18:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:30,819 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2024-11-18 14:18:30,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2024-11-18 14:18:30,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 14:18:30,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:30,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:30,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:18:30,822 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:30,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:30,824 INFO L85 PathProgramCache]: Analyzing trace with hash -398467318, now seen corresponding path program 1 times [2024-11-18 14:18:30,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711832478] [2024-11-18 14:18:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:30,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:30,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:30,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711832478] [2024-11-18 14:18:30,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711832478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:30,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:30,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:30,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727274513] [2024-11-18 14:18:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:30,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:30,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:30,982 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,006 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2024-11-18 14:18:31,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2024-11-18 14:18:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:31,008 INFO L225 Difference]: With dead ends: 141 [2024-11-18 14:18:31,008 INFO L226 Difference]: Without dead ends: 74 [2024-11-18 14:18:31,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:31,011 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:31,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-18 14:18:31,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-18 14:18:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:18:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-18 14:18:31,022 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 29 [2024-11-18 14:18:31,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:31,023 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-18 14:18:31,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:18:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-18 14:18:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-18 14:18:31,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,028 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] [2024-11-18 14:18:31,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:18:31,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1454809844, now seen corresponding path program 1 times [2024-11-18 14:18:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448091100] [2024-11-18 14:18:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448091100] [2024-11-18 14:18:31,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448091100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118858033] [2024-11-18 14:18:31,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:31,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:31,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:31,204 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-18 14:18:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,463 INFO L93 Difference]: Finished difference Result 214 states and 271 transitions. [2024-11-18 14:18:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:31,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 39 [2024-11-18 14:18:31,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:31,467 INFO L225 Difference]: With dead ends: 214 [2024-11-18 14:18:31,468 INFO L226 Difference]: Without dead ends: 147 [2024-11-18 14:18:31,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:31,470 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 167 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:31,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 268 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:31,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-18 14:18:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-18 14:18:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 117 states have internal predecessors, (137), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-18 14:18:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2024-11-18 14:18:31,508 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 39 [2024-11-18 14:18:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:31,508 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2024-11-18 14:18:31,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-18 14:18:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2024-11-18 14:18:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:18:31,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:31,510 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, 1, 1, 1] [2024-11-18 14:18:31,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:18:31,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:31,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2113308012, now seen corresponding path program 1 times [2024-11-18 14:18:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:31,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472407106] [2024-11-18 14:18:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:31,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472407106] [2024-11-18 14:18:31,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472407106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:31,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:31,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:18:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140863194] [2024-11-18 14:18:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:31,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:31,757 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:31,993 INFO L93 Difference]: Finished difference Result 145 states and 174 transitions. [2024-11-18 14:18:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:18:31,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-18 14:18:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,000 INFO L225 Difference]: With dead ends: 145 [2024-11-18 14:18:32,000 INFO L226 Difference]: Without dead ends: 143 [2024-11-18 14:18:32,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:18:32,001 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 102 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 336 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-18 14:18:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2024-11-18 14:18:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.238532110091743) internal successors, (135), 117 states have internal predecessors, (135), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-18 14:18:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2024-11-18 14:18:32,032 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 45 [2024-11-18 14:18:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,033 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2024-11-18 14:18:32,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2024-11-18 14:18:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:18:32,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:18:32,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2050569783, now seen corresponding path program 1 times [2024-11-18 14:18:32,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412479455] [2024-11-18 14:18:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412479455] [2024-11-18 14:18:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412479455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:32,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093550309] [2024-11-18 14:18:32,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:32,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:32,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:32,145 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:32,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,171 INFO L93 Difference]: Finished difference Result 278 states and 343 transitions. [2024-11-18 14:18:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:32,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 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 51 [2024-11-18 14:18:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,175 INFO L225 Difference]: With dead ends: 278 [2024-11-18 14:18:32,175 INFO L226 Difference]: Without dead ends: 144 [2024-11-18 14:18:32,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:32,177 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-18 14:18:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-18 14:18:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 120 states have internal predecessors, (138), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-18 14:18:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2024-11-18 14:18:32,204 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 51 [2024-11-18 14:18:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,205 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2024-11-18 14:18:32,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2024-11-18 14:18:32,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:18:32,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,210 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:18:32,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1988530169, now seen corresponding path program 1 times [2024-11-18 14:18:32,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268762864] [2024-11-18 14:18:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268762864] [2024-11-18 14:18:32,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268762864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:32,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141397773] [2024-11-18 14:18:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:32,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:32,317 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 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) [2024-11-18 14:18:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,359 INFO L93 Difference]: Finished difference Result 283 states and 348 transitions. [2024-11-18 14:18:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:32,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 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 51 [2024-11-18 14:18:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,363 INFO L225 Difference]: With dead ends: 283 [2024-11-18 14:18:32,364 INFO L226 Difference]: Without dead ends: 146 [2024-11-18 14:18:32,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:18:32,366 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 77 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 267 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 [2024-11-18 14:18:32,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 267 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-18 14:18:32,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-18 14:18:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 122 states have internal predecessors, (140), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-18 14:18:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2024-11-18 14:18:32,388 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 51 [2024-11-18 14:18:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,389 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2024-11-18 14:18:32,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 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) [2024-11-18 14:18:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2024-11-18 14:18:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:18:32,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,390 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:18:32,391 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1796964037, now seen corresponding path program 1 times [2024-11-18 14:18:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975643631] [2024-11-18 14:18:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975643631] [2024-11-18 14:18:32,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975643631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:18:32,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617614033] [2024-11-18 14:18:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:18:32,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:18:32,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:32,465 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,563 INFO L93 Difference]: Finished difference Result 444 states and 552 transitions. [2024-11-18 14:18:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:18:32,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 2 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 51 [2024-11-18 14:18:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,566 INFO L225 Difference]: With dead ends: 444 [2024-11-18 14:18:32,566 INFO L226 Difference]: Without dead ends: 305 [2024-11-18 14:18:32,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:32,568 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 115 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 298 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-18 14:18:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 298. [2024-11-18 14:18:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 231 states have (on average 1.2164502164502164) internal successors, (281), 245 states have internal predecessors, (281), 32 states have call successors, (32), 29 states have call predecessors, (32), 34 states have return successors, (51), 34 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-18 14:18:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2024-11-18 14:18:32,607 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2024-11-18 14:18:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,607 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2024-11-18 14:18:32,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2024-11-18 14:18:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:18:32,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,611 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:18:32,611 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,614 INFO L85 PathProgramCache]: Analyzing trace with hash 885279839, now seen corresponding path program 1 times [2024-11-18 14:18:32,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397549305] [2024-11-18 14:18:32,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:18:32,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:32,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397549305] [2024-11-18 14:18:32,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397549305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:32,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:32,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:18:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733847923] [2024-11-18 14:18:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:32,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:32,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:32,721 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:32,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:32,843 INFO L93 Difference]: Finished difference Result 862 states and 1087 transitions. [2024-11-18 14:18:32,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-18 14:18:32,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:32,848 INFO L225 Difference]: With dead ends: 862 [2024-11-18 14:18:32,848 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 14:18:32,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:18:32,850 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 62 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:32,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 420 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:32,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 14:18:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-18 14:18:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 438 states have (on average 1.1917808219178083) internal successors, (522), 465 states have internal predecessors, (522), 64 states have call successors, (64), 58 states have call predecessors, (64), 68 states have return successors, (107), 68 states have call predecessors, (107), 64 states have call successors, (107) [2024-11-18 14:18:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 693 transitions. [2024-11-18 14:18:32,909 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 693 transitions. Word has length 55 [2024-11-18 14:18:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:32,909 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 693 transitions. [2024-11-18 14:18:32,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 693 transitions. [2024-11-18 14:18:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:18:32,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:32,912 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:32,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:18:32,913 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:32,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:32,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1847980005, now seen corresponding path program 1 times [2024-11-18 14:18:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:32,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618767506] [2024-11-18 14:18:32,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:32,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:18:33,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618767506] [2024-11-18 14:18:33,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618767506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886136815] [2024-11-18 14:18:33,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:33,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:33,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:33,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:33,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:18:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:33,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:18:33,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:33,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:33,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886136815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:33,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:33,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-18 14:18:33,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033139771] [2024-11-18 14:18:33,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:33,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:18:33,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:33,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:18:33,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:18:33,380 INFO L87 Difference]: Start difference. First operand 571 states and 693 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:18:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:33,532 INFO L93 Difference]: Finished difference Result 1118 states and 1362 transitions. [2024-11-18 14:18:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:33,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-18 14:18:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:33,537 INFO L225 Difference]: With dead ends: 1118 [2024-11-18 14:18:33,537 INFO L226 Difference]: Without dead ends: 554 [2024-11-18 14:18:33,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:18:33,540 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 58 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:33,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 655 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:33,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-18 14:18:33,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-18 14:18:33,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 425 states have (on average 1.1788235294117646) internal successors, (501), 451 states have internal predecessors, (501), 63 states have call successors, (63), 57 states have call predecessors, (63), 65 states have return successors, (95), 66 states have call predecessors, (95), 63 states have call successors, (95) [2024-11-18 14:18:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 659 transitions. [2024-11-18 14:18:33,606 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 659 transitions. Word has length 59 [2024-11-18 14:18:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:33,607 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 659 transitions. [2024-11-18 14:18:33,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:18:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 659 transitions. [2024-11-18 14:18:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 14:18:33,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:33,611 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:33,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:18:33,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 14:18:33,816 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:33,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:33,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1135855989, now seen corresponding path program 1 times [2024-11-18 14:18:33,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:33,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853404779] [2024-11-18 14:18:33,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:33,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:18:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853404779] [2024-11-18 14:18:34,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853404779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578611757] [2024-11-18 14:18:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:34,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:34,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:34,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:34,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:18:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:18:34,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:34,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:34,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578611757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:34,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:34,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-11-18 14:18:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627099931] [2024-11-18 14:18:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:34,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:34,285 INFO L87 Difference]: Start difference. First operand 554 states and 659 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:18:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:34,436 INFO L93 Difference]: Finished difference Result 1405 states and 1761 transitions. [2024-11-18 14:18:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:18:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 98 [2024-11-18 14:18:34,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:34,445 INFO L225 Difference]: With dead ends: 1405 [2024-11-18 14:18:34,445 INFO L226 Difference]: Without dead ends: 950 [2024-11-18 14:18:34,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:34,448 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 103 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:34,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 532 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-18 14:18:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 888. [2024-11-18 14:18:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 678 states have (on average 1.182890855457227) internal successors, (802), 716 states have internal predecessors, (802), 106 states have call successors, (106), 98 states have call predecessors, (106), 103 states have return successors, (168), 101 states have call predecessors, (168), 106 states have call successors, (168) [2024-11-18 14:18:34,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1076 transitions. [2024-11-18 14:18:34,546 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1076 transitions. Word has length 98 [2024-11-18 14:18:34,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:34,547 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1076 transitions. [2024-11-18 14:18:34,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:18:34,548 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1076 transitions. [2024-11-18 14:18:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 14:18:34,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:34,552 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:34,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:18:34,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-18 14:18:34,754 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:34,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -669582345, now seen corresponding path program 1 times [2024-11-18 14:18:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211135734] [2024-11-18 14:18:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:34,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-18 14:18:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211135734] [2024-11-18 14:18:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211135734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315682564] [2024-11-18 14:18:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:34,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:34,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:34,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:34,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:18:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:34,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 14:18:34,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:18:35,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:35,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315682564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:35,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:35,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-18 14:18:35,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058927864] [2024-11-18 14:18:35,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:35,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:35,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:35,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:18:35,026 INFO L87 Difference]: Start difference. First operand 888 states and 1076 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:18:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:35,070 INFO L93 Difference]: Finished difference Result 1175 states and 1418 transitions. [2024-11-18 14:18:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:35,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2024-11-18 14:18:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:35,073 INFO L225 Difference]: With dead ends: 1175 [2024-11-18 14:18:35,073 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:18:35,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:18:35,077 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:35,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:18:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:18:35,078 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) [2024-11-18 14:18:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:18:35,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2024-11-18 14:18:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:35,079 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:18:35,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:18:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:18:35,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:18:35,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:18:35,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:18:35,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:35,291 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:35,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:18:38,391 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:18:38,424 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse3 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse3 .cse1 .cse2))) (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (or (not .cse3) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse3 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse3 .cse1 .cse2))) (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse3) (= ~methaneLevelCritical~0 0))))) [2024-11-18 14:18:38,434 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,448 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (let ((.cse3 (<= 1 |old(~waterLevel~0)|)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (<= 2 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse5) (and .cse4 .cse1 .cse5))) (or (not .cse2) (= ~pumpRunning~0 0)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0)) (< |old(~waterLevel~0)| 2)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (let ((.cse3 (<= 1 |old(~waterLevel~0)|)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (<= 2 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse5) (and .cse4 .cse1 .cse5))) (or (not .cse2) (= ~pumpRunning~0 0)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0)) (< |old(~waterLevel~0)| 2))))) [2024-11-18 14:18:38,459 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,473 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 ~waterLevel~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1)))) [2024-11-18 14:18:38,483 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (<= 2 ~waterLevel~0) (< |old(~waterLevel~0)| 2)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse3 .cse1 (<= 2 |old(~waterLevel~0)|))))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (< |old(~waterLevel~0)| 2) (< 1 ~waterLevel~0)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse3 .cse1 (<= 2 |old(~waterLevel~0)|)))))) [2024-11-18 14:18:38,485 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:38,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:18:38 BoogieIcfgContainer [2024-11-18 14:18:38,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:18:38,487 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:18:38,487 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:18:38,488 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:18:38,488 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:30" (3/4) ... [2024-11-18 14:18:38,491 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:18:38,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:18:38,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:18:38,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:18:38,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:18:38,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-18 14:18:38,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:18:38,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:18:38,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-18 14:18:38,503 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:18:38,504 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:18:38,504 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:38,504 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:38,614 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:18:38,614 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:18:38,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:18:38,615 INFO L158 Benchmark]: Toolchain (without parser) took 9628.08ms. Allocated memory was 167.8MB in the beginning and 264.2MB in the end (delta: 96.5MB). Free memory was 108.2MB in the beginning and 151.9MB in the end (delta: -43.7MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,615 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:18:38,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.05ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 86.3MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.45ms. Allocated memory is still 167.8MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,616 INFO L158 Benchmark]: Boogie Preprocessor took 65.12ms. Allocated memory is still 167.8MB. Free memory was 84.2MB in the beginning and 81.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,617 INFO L158 Benchmark]: RCFGBuilder took 526.45ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 81.4MB in the beginning and 186.9MB in the end (delta: -105.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,617 INFO L158 Benchmark]: TraceAbstraction took 8320.08ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 186.9MB in the beginning and 159.2MB in the end (delta: 27.7MB). Peak memory consumption was 154.9MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,617 INFO L158 Benchmark]: Witness Printer took 127.46ms. Allocated memory is still 264.2MB. Free memory was 159.2MB in the beginning and 151.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:18:38,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.05ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 86.3MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.45ms. Allocated memory is still 167.8MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.12ms. Allocated memory is still 167.8MB. Free memory was 84.2MB in the beginning and 81.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.45ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 81.4MB in the beginning and 186.9MB in the end (delta: -105.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8320.08ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 186.9MB in the beginning and 159.2MB in the end (delta: 27.7MB). Peak memory consumption was 154.9MB. Max. memory is 16.1GB. * Witness Printer took 127.46ms. Allocated memory is still 264.2MB. Free memory was 159.2MB in the beginning and 151.9MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - 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: 54]: 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 8 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 784 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 772 mSDsluCounter, 3833 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2526 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 1307 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=888occurred in iteration=11, InterpolantAutomatonStates: 63, 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, 77 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 878 NumberOfCodeBlocks, 878 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 863 ConstructedInterpolants, 0 QuantifiedInterpolants, 1614 SizeOfPredicates, 2 NumberOfNonLiveVariables, 872 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 127/142 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 535]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || ((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 304]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 93]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) && (1 <= waterLevel)) || (((\old(methaneLevelCritical) == 0) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (1 <= waterLevel))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 280]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(waterLevel) != 1) || (waterLevel == 1)) && (((\old(pumpRunning) != 0) || (\old(waterLevel) < 2)) || (1 < waterLevel))) && (((((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel)))) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (2 <= \old(waterLevel)))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (2 <= \old(waterLevel))))) && (((methaneLevelCritical == 0) && (2 <= waterLevel)) || ((pumpRunning == 0) && (1 <= waterLevel)))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 172]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 105]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: ((((methaneLevelCritical <= \result) && ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel)))) && ((methaneLevelCritical != 0) || (\result == 0))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 312]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= waterLevel)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (1 <= waterLevel)))) Ensures: (((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)))) && ((waterLevel != 1) || (pumpRunning == 0))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 81]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((((pumpRunning == 0) || (\old(waterLevel) != 1)) && (2 <= waterLevel)) && (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= \old(waterLevel))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(waterLevel))))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:18:38,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE