./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.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_spec5_product53.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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:21:58,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:21:58,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:21:58,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:21:58,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:21:58,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:21:58,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:21:58,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:21:58,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:21:58,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:21:58,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:21:58,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:21:58,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:21:58,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:21:58,609 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:21:58,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:21:58,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:21:58,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:21:58,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:21:58,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:21:58,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:21:58,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:21:58,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:21:58,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:21:58,616 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:21:58,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:21:58,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:21:58,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:21:58,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:21:58,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:21:58,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:21:58,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:21:58,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:58,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:21:58,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:21:58,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:21:58,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:21:58,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:21:58,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:21:58,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:21:58,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:21:58,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:21:58,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2024-11-18 14:21:58,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:21:58,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:21:58,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:21:58,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:21:58,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:21:58,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2024-11-18 14:22:00,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:22:00,740 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:22:00,741 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2024-11-18 14:22:00,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aafd53f4/4134a5569c544033b57a42999aa0dcde/FLAG96ad67df6 [2024-11-18 14:22:01,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aafd53f4/4134a5569c544033b57a42999aa0dcde [2024-11-18 14:22:01,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:22:01,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:22:01,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:01,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:22:01,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:22:01,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74506cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01, skipping insertion in model container [2024-11-18 14:22:01,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:22:01,430 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_spec5_product53.cil.c[17915,17928] [2024-11-18 14:22:01,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:01,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:22:01,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-18 14:22:01,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2024-11-18 14:22:01,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] [2024-11-18 14:22:01,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] [2024-11-18 14:22:01,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] [2024-11-18 14:22:01,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] [2024-11-18 14:22:01,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2024-11-18 14:22:01,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2024-11-18 14:22:01,529 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_spec5_product53.cil.c[17915,17928] [2024-11-18 14:22:01,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:01,569 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:22:01,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01 WrapperNode [2024-11-18 14:22:01,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:01,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:01,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:22:01,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:22:01,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,616 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 233 [2024-11-18 14:22:01,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:01,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:22:01,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:22:01,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:22:01,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,649 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 14:22:01,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:22:01,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:22:01,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:22:01,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:22:01,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (1/1) ... [2024-11-18 14:22:01,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:22:01,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:01,705 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 14:22:01,707 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 14:22:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:22:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:22:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:22:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:22:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:22:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:22:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:22:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:22:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:22:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-18 14:22:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-18 14:22:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-18 14:22:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-18 14:22:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:22:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:22:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:22:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:22:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:22:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:22:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:22:01,830 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:22:01,831 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:22:02,130 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-18 14:22:02,130 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:22:02,149 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:22:02,149 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:22:02,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:02 BoogieIcfgContainer [2024-11-18 14:22:02,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:22:02,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:22:02,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:22:02,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:22:02,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:22:01" (1/3) ... [2024-11-18 14:22:02,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ddb672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:02, skipping insertion in model container [2024-11-18 14:22:02,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:01" (2/3) ... [2024-11-18 14:22:02,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ddb672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:02, skipping insertion in model container [2024-11-18 14:22:02,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:02" (3/3) ... [2024-11-18 14:22:02,158 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2024-11-18 14:22:02,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:22:02,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:22:02,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:22:02,240 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;@7da2a3e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:22:02,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:22:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 14:22:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:22:02,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:02,260 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] [2024-11-18 14:22:02,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:02,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:02,265 INFO L85 PathProgramCache]: Analyzing trace with hash 836117038, now seen corresponding path program 1 times [2024-11-18 14:22:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:02,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895026795] [2024-11-18 14:22:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:02,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:02,504 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 14:22:02,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:02,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895026795] [2024-11-18 14:22:02,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895026795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:02,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:02,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:22:02,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559841531] [2024-11-18 14:22:02,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:02,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:22:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:22:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:22:02,539 INFO L87 Difference]: Start difference. First operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:22:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:02,572 INFO L93 Difference]: Finished difference Result 201 states and 272 transitions. [2024-11-18 14:22:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:22:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-18 14:22:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:02,582 INFO L225 Difference]: With dead ends: 201 [2024-11-18 14:22:02,582 INFO L226 Difference]: Without dead ends: 96 [2024-11-18 14:22:02,585 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 14:22:02,589 INFO L432 NwaCegarLoop]: 133 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, 133 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 14:22:02,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-18 14:22:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-18 14:22:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-18 14:22:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2024-11-18 14:22:02,649 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 32 [2024-11-18 14:22:02,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:02,649 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2024-11-18 14:22:02,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:22:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2024-11-18 14:22:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-18 14:22:02,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:02,654 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] [2024-11-18 14:22:02,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:22:02,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:02,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash -636853989, now seen corresponding path program 1 times [2024-11-18 14:22:02,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:02,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842499296] [2024-11-18 14:22:02,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:02,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:02,813 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 14:22:02,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:02,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842499296] [2024-11-18 14:22:02,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842499296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:02,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:02,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396777046] [2024-11-18 14:22:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:02,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:02,821 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:22:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:02,844 INFO L93 Difference]: Finished difference Result 157 states and 203 transitions. [2024-11-18 14:22:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:02,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-18 14:22:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:02,846 INFO L225 Difference]: With dead ends: 157 [2024-11-18 14:22:02,846 INFO L226 Difference]: Without dead ends: 87 [2024-11-18 14:22:02,847 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 14:22:02,848 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 206 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 14:22:02,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-18 14:22:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-18 14:22:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 14:22:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-18 14:22:02,864 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 33 [2024-11-18 14:22:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:02,864 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-18 14:22:02,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:22:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-18 14:22:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 14:22:02,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:02,867 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] [2024-11-18 14:22:02,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:22:02,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:02,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash 485124754, now seen corresponding path program 1 times [2024-11-18 14:22:02,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:02,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666801198] [2024-11-18 14:22:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:02,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:03,054 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 14:22:03,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666801198] [2024-11-18 14:22:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666801198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:03,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:03,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:03,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466247054] [2024-11-18 14:22:03,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:03,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:03,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:03,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:03,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:03,061 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:22:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:03,132 INFO L93 Difference]: Finished difference Result 166 states and 217 transitions. [2024-11-18 14:22:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:03,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-18 14:22:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:03,136 INFO L225 Difference]: With dead ends: 166 [2024-11-18 14:22:03,136 INFO L226 Difference]: Without dead ends: 87 [2024-11-18 14:22:03,137 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 14:22:03,138 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 110 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 14:22:03,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-18 14:22:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-18 14:22:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 14:22:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2024-11-18 14:22:03,152 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 37 [2024-11-18 14:22:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:03,154 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2024-11-18 14:22:03,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:22:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2024-11-18 14:22:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-18 14:22:03,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:03,156 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] [2024-11-18 14:22:03,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:22:03,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:03,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:03,157 INFO L85 PathProgramCache]: Analyzing trace with hash 88830114, now seen corresponding path program 1 times [2024-11-18 14:22:03,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26574337] [2024-11-18 14:22:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:03,211 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 14:22:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:03,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26574337] [2024-11-18 14:22:03,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26574337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:03,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:03,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465004707] [2024-11-18 14:22:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:03,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:03,213 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:03,256 INFO L93 Difference]: Finished difference Result 217 states and 286 transitions. [2024-11-18 14:22:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:03,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-18 14:22:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:03,260 INFO L225 Difference]: With dead ends: 217 [2024-11-18 14:22:03,260 INFO L226 Difference]: Without dead ends: 138 [2024-11-18 14:22:03,261 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 14:22:03,262 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 82 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:03,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 204 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-18 14:22:03,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-18 14:22:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 110 states have internal predecessors, (131), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-18 14:22:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 173 transitions. [2024-11-18 14:22:03,286 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 173 transitions. Word has length 46 [2024-11-18 14:22:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:03,287 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 173 transitions. [2024-11-18 14:22:03,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:22:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 173 transitions. [2024-11-18 14:22:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 14:22:03,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:03,293 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] [2024-11-18 14:22:03,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:22:03,293 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:03,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:03,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2065653903, now seen corresponding path program 1 times [2024-11-18 14:22:03,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:03,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675527395] [2024-11-18 14:22:03,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:03,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:03,447 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 14:22:03,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675527395] [2024-11-18 14:22:03,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675527395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:03,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:03,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:22:03,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6550560] [2024-11-18 14:22:03,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:03,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:22:03,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:03,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:22:03,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:03,450 INFO L87 Difference]: Start difference. First operand 136 states and 173 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:22:03,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:03,493 INFO L93 Difference]: Finished difference Result 267 states and 348 transitions. [2024-11-18 14:22:03,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:22:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-18 14:22:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:03,495 INFO L225 Difference]: With dead ends: 267 [2024-11-18 14:22:03,495 INFO L226 Difference]: Without dead ends: 139 [2024-11-18 14:22:03,496 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 14:22:03,497 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 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 14:22:03,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-18 14:22:03,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-18 14:22:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 105 states have (on average 1.276190476190476) internal successors, (134), 113 states have internal predecessors, (134), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-18 14:22:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 176 transitions. [2024-11-18 14:22:03,513 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 176 transitions. Word has length 56 [2024-11-18 14:22:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:03,514 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 176 transitions. [2024-11-18 14:22:03,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:22:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 176 transitions. [2024-11-18 14:22:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 14:22:03,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:03,516 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] [2024-11-18 14:22:03,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:22:03,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:03,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1642952077, now seen corresponding path program 1 times [2024-11-18 14:22:03,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:03,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97069803] [2024-11-18 14:22:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:03,631 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 14:22:03,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:03,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97069803] [2024-11-18 14:22:03,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97069803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:03,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:03,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:03,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211745679] [2024-11-18 14:22:03,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:03,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:03,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:03,636 INFO L87 Difference]: Start difference. First operand 139 states and 176 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:22:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:03,663 INFO L93 Difference]: Finished difference Result 272 states and 359 transitions. [2024-11-18 14:22:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:03,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-18 14:22:03,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:03,667 INFO L225 Difference]: With dead ends: 272 [2024-11-18 14:22:03,668 INFO L226 Difference]: Without dead ends: 141 [2024-11-18 14:22:03,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 14:22:03,670 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:03,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-18 14:22:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-18 14:22:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 115 states have internal predecessors, (136), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-18 14:22:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2024-11-18 14:22:03,697 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 56 [2024-11-18 14:22:03,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:03,700 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2024-11-18 14:22:03,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:22:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2024-11-18 14:22:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 14:22:03,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:03,701 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] [2024-11-18 14:22:03,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:22:03,702 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:03,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:03,702 INFO L85 PathProgramCache]: Analyzing trace with hash 846576885, now seen corresponding path program 1 times [2024-11-18 14:22:03,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127074226] [2024-11-18 14:22:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:03,838 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 14:22:03,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:03,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127074226] [2024-11-18 14:22:03,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127074226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:03,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:03,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:03,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940634580] [2024-11-18 14:22:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:03,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:03,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:03,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:03,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:03,842 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 14:22:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:03,980 INFO L93 Difference]: Finished difference Result 459 states and 601 transitions. [2024-11-18 14:22:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-18 14:22:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:03,984 INFO L225 Difference]: With dead ends: 459 [2024-11-18 14:22:03,985 INFO L226 Difference]: Without dead ends: 326 [2024-11-18 14:22:03,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 14:22:03,987 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 145 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:03,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 331 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:22:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-18 14:22:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 317. [2024-11-18 14:22:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 238 states have (on average 1.2563025210084033) internal successors, (299), 253 states have internal predecessors, (299), 42 states have call successors, (42), 35 states have call predecessors, (42), 36 states have return successors, (67), 39 states have call predecessors, (67), 42 states have call successors, (67) [2024-11-18 14:22:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 408 transitions. [2024-11-18 14:22:04,037 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 408 transitions. Word has length 56 [2024-11-18 14:22:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:04,039 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 408 transitions. [2024-11-18 14:22:04,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 14:22:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 408 transitions. [2024-11-18 14:22:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 14:22:04,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:04,040 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] [2024-11-18 14:22:04,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:22:04,040 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:04,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1874240715, now seen corresponding path program 1 times [2024-11-18 14:22:04,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:04,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673834285] [2024-11-18 14:22:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:04,170 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 14:22:04,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:04,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673834285] [2024-11-18 14:22:04,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673834285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:04,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:04,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:22:04,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149290415] [2024-11-18 14:22:04,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:04,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:22:04,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:04,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:22:04,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:22:04,173 INFO L87 Difference]: Start difference. First operand 317 states and 408 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:22:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:04,467 INFO L93 Difference]: Finished difference Result 664 states and 863 transitions. [2024-11-18 14:22:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:22:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-18 14:22:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:04,471 INFO L225 Difference]: With dead ends: 664 [2024-11-18 14:22:04,471 INFO L226 Difference]: Without dead ends: 355 [2024-11-18 14:22:04,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:22:04,473 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 137 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:04,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 438 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:22:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-18 14:22:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 353. [2024-11-18 14:22:04,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 264 states have (on average 1.2272727272727273) internal successors, (324), 279 states have internal predecessors, (324), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (80), 48 states have call predecessors, (80), 45 states have call successors, (80) [2024-11-18 14:22:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 449 transitions. [2024-11-18 14:22:04,534 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 449 transitions. Word has length 58 [2024-11-18 14:22:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:04,536 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 449 transitions. [2024-11-18 14:22:04,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:22:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 449 transitions. [2024-11-18 14:22:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-18 14:22:04,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:04,540 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, 1] [2024-11-18 14:22:04,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:22:04,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:04,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1421347697, now seen corresponding path program 1 times [2024-11-18 14:22:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:04,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829770080] [2024-11-18 14:22:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:04,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:04,755 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 14:22:04,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829770080] [2024-11-18 14:22:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829770080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:04,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:04,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:22:04,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996894536] [2024-11-18 14:22:04,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:04,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:22:04,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:04,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:22:04,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:22:04,759 INFO L87 Difference]: Start difference. First operand 353 states and 449 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-18 14:22:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:05,230 INFO L93 Difference]: Finished difference Result 990 states and 1313 transitions. [2024-11-18 14:22:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:22:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-11-18 14:22:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:05,236 INFO L225 Difference]: With dead ends: 990 [2024-11-18 14:22:05,237 INFO L226 Difference]: Without dead ends: 700 [2024-11-18 14:22:05,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:22:05,239 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 354 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:05,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 590 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:22:05,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-18 14:22:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 627. [2024-11-18 14:22:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 466 states have (on average 1.2145922746781115) internal successors, (566), 495 states have internal predecessors, (566), 81 states have call successors, (81), 61 states have call predecessors, (81), 79 states have return successors, (142), 86 states have call predecessors, (142), 81 states have call successors, (142) [2024-11-18 14:22:05,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 789 transitions. [2024-11-18 14:22:05,328 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 789 transitions. Word has length 60 [2024-11-18 14:22:05,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:05,328 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 789 transitions. [2024-11-18 14:22:05,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-18 14:22:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 789 transitions. [2024-11-18 14:22:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:22:05,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:05,331 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:05,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:22:05,332 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:05,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash 118762499, now seen corresponding path program 1 times [2024-11-18 14:22:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:05,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228272913] [2024-11-18 14:22:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:05,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:05,450 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 14:22:05,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:05,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228272913] [2024-11-18 14:22:05,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228272913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:05,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:05,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:22:05,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586889279] [2024-11-18 14:22:05,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:05,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:22:05,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:05,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:22:05,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:05,452 INFO L87 Difference]: Start difference. First operand 627 states and 789 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 1 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 14:22:05,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:05,506 INFO L93 Difference]: Finished difference Result 1202 states and 1552 transitions. [2024-11-18 14:22:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:22:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 1 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 109 [2024-11-18 14:22:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:05,511 INFO L225 Difference]: With dead ends: 1202 [2024-11-18 14:22:05,511 INFO L226 Difference]: Without dead ends: 636 [2024-11-18 14:22:05,513 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 14:22:05,514 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 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 14:22:05,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-18 14:22:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2024-11-18 14:22:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 475 states have (on average 1.2105263157894737) internal successors, (575), 504 states have internal predecessors, (575), 81 states have call successors, (81), 61 states have call predecessors, (81), 79 states have return successors, (142), 86 states have call predecessors, (142), 81 states have call successors, (142) [2024-11-18 14:22:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 798 transitions. [2024-11-18 14:22:05,570 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 798 transitions. Word has length 109 [2024-11-18 14:22:05,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:05,571 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 798 transitions. [2024-11-18 14:22:05,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 1 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 14:22:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 798 transitions. [2024-11-18 14:22:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:22:05,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:05,574 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:05,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:22:05,574 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:05,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash 56722885, now seen corresponding path program 1 times [2024-11-18 14:22:05,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:05,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634748878] [2024-11-18 14:22:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:22:05,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:05,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634748878] [2024-11-18 14:22:05,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634748878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:05,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656144809] [2024-11-18 14:22:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:05,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:05,769 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 14:22:05,771 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 14:22:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:05,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:22:05,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:22:06,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:22:06,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656144809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:06,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:06,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-18 14:22:06,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543159001] [2024-11-18 14:22:06,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:06,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 14:22:06,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 14:22:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:22:06,350 INFO L87 Difference]: Start difference. First operand 636 states and 798 transitions. Second operand has 15 states, 15 states have (on average 10.4) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-18 14:22:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:06,865 INFO L93 Difference]: Finished difference Result 1395 states and 1819 transitions. [2024-11-18 14:22:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:22:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.4) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 109 [2024-11-18 14:22:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:06,898 INFO L225 Difference]: With dead ends: 1395 [2024-11-18 14:22:06,899 INFO L226 Difference]: Without dead ends: 820 [2024-11-18 14:22:06,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-18 14:22:06,902 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 458 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:06,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1029 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:22:06,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-18 14:22:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 723. [2024-11-18 14:22:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 535 states have (on average 1.2018691588785047) internal successors, (643), 573 states have internal predecessors, (643), 94 states have call successors, (94), 79 states have call predecessors, (94), 93 states have return successors, (138), 95 states have call predecessors, (138), 94 states have call successors, (138) [2024-11-18 14:22:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 875 transitions. [2024-11-18 14:22:06,959 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 875 transitions. Word has length 109 [2024-11-18 14:22:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:06,959 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 875 transitions. [2024-11-18 14:22:06,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.4) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-18 14:22:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 875 transitions. [2024-11-18 14:22:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-18 14:22:06,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:06,963 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:06,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:22:07,164 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,SelfDestructingSolverStorable10 [2024-11-18 14:22:07,164 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:07,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1755329041, now seen corresponding path program 1 times [2024-11-18 14:22:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:07,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007646626] [2024-11-18 14:22:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:07,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 94 proven. 7 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-18 14:22:07,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007646626] [2024-11-18 14:22:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007646626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399865925] [2024-11-18 14:22:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:07,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:07,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:07,381 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 14:22:07,382 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 14:22:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:07,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:22:07,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 147 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-18 14:22:07,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 78 proven. 42 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-18 14:22:08,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399865925] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:08,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:08,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 22 [2024-11-18 14:22:08,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363855340] [2024-11-18 14:22:08,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:08,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:22:08,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:08,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:22:08,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:22:08,354 INFO L87 Difference]: Start difference. First operand 723 states and 875 transitions. Second operand has 22 states, 22 states have (on average 9.863636363636363) internal successors, (217), 21 states have internal predecessors, (217), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-18 14:22:09,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:09,867 INFO L93 Difference]: Finished difference Result 2218 states and 2836 transitions. [2024-11-18 14:22:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-18 14:22:09,868 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.863636363636363) internal successors, (217), 21 states have internal predecessors, (217), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) Word has length 191 [2024-11-18 14:22:09,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:09,878 INFO L225 Difference]: With dead ends: 2218 [2024-11-18 14:22:09,879 INFO L226 Difference]: Without dead ends: 1470 [2024-11-18 14:22:09,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 377 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=650, Invalid=2430, Unknown=0, NotChecked=0, Total=3080 [2024-11-18 14:22:09,886 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 944 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:09,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 814 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 14:22:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2024-11-18 14:22:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1376. [2024-11-18 14:22:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1028 states have (on average 1.1488326848249026) internal successors, (1181), 1083 states have internal predecessors, (1181), 181 states have call successors, (181), 160 states have call predecessors, (181), 166 states have return successors, (238), 169 states have call predecessors, (238), 181 states have call successors, (238) [2024-11-18 14:22:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1600 transitions. [2024-11-18 14:22:10,002 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1600 transitions. Word has length 191 [2024-11-18 14:22:10,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:10,003 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 1600 transitions. [2024-11-18 14:22:10,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.863636363636363) internal successors, (217), 21 states have internal predecessors, (217), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-18 14:22:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1600 transitions. [2024-11-18 14:22:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-18 14:22:10,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:10,010 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:10,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:22:10,214 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,SelfDestructingSolverStorable11 [2024-11-18 14:22:10,215 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:10,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:10,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1314092273, now seen corresponding path program 1 times [2024-11-18 14:22:10,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:10,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983261359] [2024-11-18 14:22:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:10,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 91 proven. 72 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-18 14:22:10,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:10,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983261359] [2024-11-18 14:22:10,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983261359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319769525] [2024-11-18 14:22:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:10,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:10,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:10,531 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 14:22:10,532 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 14:22:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:10,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-18 14:22:10,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 186 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 14:22:10,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:11,418 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 101 proven. 61 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-18 14:22:11,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319769525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:11,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:11,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-18 14:22:11,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122474242] [2024-11-18 14:22:11,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:11,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 14:22:11,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 14:22:11,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:22:11,423 INFO L87 Difference]: Start difference. First operand 1376 states and 1600 transitions. Second operand has 23 states, 23 states have (on average 11.478260869565217) internal successors, (264), 20 states have internal predecessors, (264), 9 states have call successors, (42), 5 states have call predecessors, (42), 14 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-18 14:22:12,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:12,134 INFO L93 Difference]: Finished difference Result 2698 states and 3172 transitions. [2024-11-18 14:22:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 14:22:12,135 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.478260869565217) internal successors, (264), 20 states have internal predecessors, (264), 9 states have call successors, (42), 5 states have call predecessors, (42), 14 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) Word has length 207 [2024-11-18 14:22:12,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:12,144 INFO L225 Difference]: With dead ends: 2698 [2024-11-18 14:22:12,144 INFO L226 Difference]: Without dead ends: 1436 [2024-11-18 14:22:12,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 412 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-18 14:22:12,150 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 592 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:12,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 666 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:22:12,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-18 14:22:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1406. [2024-11-18 14:22:12,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1048 states have (on average 1.1412213740458015) internal successors, (1196), 1103 states have internal predecessors, (1196), 181 states have call successors, (181), 170 states have call predecessors, (181), 176 states have return successors, (238), 169 states have call predecessors, (238), 181 states have call successors, (238) [2024-11-18 14:22:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1615 transitions. [2024-11-18 14:22:12,255 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1615 transitions. Word has length 207 [2024-11-18 14:22:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:12,255 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 1615 transitions. [2024-11-18 14:22:12,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.478260869565217) internal successors, (264), 20 states have internal predecessors, (264), 9 states have call successors, (42), 5 states have call predecessors, (42), 14 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-18 14:22:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1615 transitions. [2024-11-18 14:22:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-18 14:22:12,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:12,260 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:12,279 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 14:22:12,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:12,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:12,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:12,462 INFO L85 PathProgramCache]: Analyzing trace with hash -916420892, now seen corresponding path program 1 times [2024-11-18 14:22:12,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:12,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471847397] [2024-11-18 14:22:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:12,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 95 proven. 57 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-18 14:22:13,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:13,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471847397] [2024-11-18 14:22:13,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471847397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:13,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289986173] [2024-11-18 14:22:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:13,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:13,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:13,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:13,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:22:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:13,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 14:22:13,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 131 proven. 26 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-18 14:22:13,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-18 14:22:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289986173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:14,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:14,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2024-11-18 14:22:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027601502] [2024-11-18 14:22:14,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:14,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:22:14,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:22:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:22:14,081 INFO L87 Difference]: Start difference. First operand 1406 states and 1615 transitions. Second operand has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2024-11-18 14:22:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:15,067 INFO L93 Difference]: Finished difference Result 2708 states and 3184 transitions. [2024-11-18 14:22:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 14:22:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) Word has length 208 [2024-11-18 14:22:15,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:15,079 INFO L225 Difference]: With dead ends: 2708 [2024-11-18 14:22:15,079 INFO L226 Difference]: Without dead ends: 1886 [2024-11-18 14:22:15,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 411 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-18 14:22:15,084 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 507 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:15,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 800 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:22:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2024-11-18 14:22:15,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1730. [2024-11-18 14:22:15,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1293 states have (on average 1.1361175560711523) internal successors, (1469), 1351 states have internal predecessors, (1469), 225 states have call successors, (225), 211 states have call predecessors, (225), 211 states have return successors, (274), 210 states have call predecessors, (274), 225 states have call successors, (274) [2024-11-18 14:22:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 1968 transitions. [2024-11-18 14:22:15,223 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 1968 transitions. Word has length 208 [2024-11-18 14:22:15,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:15,224 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 1968 transitions. [2024-11-18 14:22:15,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 21 states have internal predecessors, (246), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2024-11-18 14:22:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 1968 transitions. [2024-11-18 14:22:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-18 14:22:15,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:15,231 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 14:22:15,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 14:22:15,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:15,436 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:15,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1779854262, now seen corresponding path program 1 times [2024-11-18 14:22:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382277413] [2024-11-18 14:22:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 128 proven. 87 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-18 14:22:15,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:15,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382277413] [2024-11-18 14:22:15,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382277413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:15,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506010828] [2024-11-18 14:22:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:15,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:15,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:15,790 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:15,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:22:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:15,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-18 14:22:15,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 153 proven. 89 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-18 14:22:16,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 98 proven. 136 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-18 14:22:17,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506010828] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:17,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:17,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 16] total 24 [2024-11-18 14:22:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068787303] [2024-11-18 14:22:17,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:17,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 14:22:17,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 14:22:17,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-18 14:22:17,063 INFO L87 Difference]: Start difference. First operand 1730 states and 1968 transitions. Second operand has 24 states, 24 states have (on average 12.541666666666666) internal successors, (301), 23 states have internal predecessors, (301), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) [2024-11-18 14:22:17,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:17,871 INFO L93 Difference]: Finished difference Result 2230 states and 2528 transitions. [2024-11-18 14:22:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:22:17,871 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.541666666666666) internal successors, (301), 23 states have internal predecessors, (301), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) Word has length 263 [2024-11-18 14:22:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:17,874 INFO L225 Difference]: With dead ends: 2230 [2024-11-18 14:22:17,874 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:22:17,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 506 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=282, Invalid=840, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 14:22:17,879 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 328 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:17,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 840 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:22:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:22:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:22:17,880 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 14:22:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:22:17,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2024-11-18 14:22:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:17,882 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:22:17,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.541666666666666) internal successors, (301), 23 states have internal predecessors, (301), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) [2024-11-18 14:22:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:22:17,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:22:17,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:22:17,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:22:18,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-18 14:22:18,093 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:18,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:22:23,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:22:23,276 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 1) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) (= ~pumpRunning~0 1)) Eliminated clause: (and (= 1 ~systemActive~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) (= ~pumpRunning~0 1)) [2024-11-18 14:22:23,297 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 (not .cse1)) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse4 (= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse4 .cse3 (= ~pumpRunning~0 1)) (and .cse2 .cse4 .cse3))) (or (not .cse0) .cse1))) Eliminated clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse2 .cse1 (= ~pumpRunning~0 1)) (and .cse0 .cse2 .cse1))) (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse3 (= |old(~methaneLevelCritical~0)| 0)) (.cse4 (= ~methaneLevelCritical~0 0))) (and (or .cse3 (not .cse4)) (or (not .cse3) .cse4))))) [2024-11-18 14:22:23,303 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:23,317 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= |old(~waterLevel~0)| 2)) (.cse4 (not .cse7)) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (= |old(~pumpRunning~0)| 1)) (.cse2 (= 2 ~waterLevel~0))) (and (or (not .cse0) (and .cse1 .cse2) (not .cse3)) (or .cse4 (< |old(~switchedOnBeforeTS~0)| 1) (<= 1 ~switchedOnBeforeTS~0)) (let ((.cse5 (= 1 ~systemActive~0))) (or (and .cse5 .cse6 .cse3) (and .cse7 .cse5 .cse0) (and .cse5 .cse0 .cse3))) (or .cse4 (and .cse1 (= ~waterLevel~0 1))) (or (not .cse6) (and .cse2 (= ~pumpRunning~0 1)))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse6 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= |old(~waterLevel~0)| 2)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~pumpRunning~0)| 1)) (.cse2 (= 2 ~waterLevel~0)) (.cse7 (not .cse6))) (and (or (not .cse0) (and .cse1 .cse2) (not .cse3)) (let ((.cse4 (= 1 ~systemActive~0))) (or (and .cse4 .cse5 .cse3) (and .cse6 .cse4 .cse0) (and .cse4 .cse0 .cse3))) (or .cse7 (and .cse1 (= ~waterLevel~0 1))) (or (not .cse5) (and .cse2 (= ~pumpRunning~0 1))) (or .cse7 (< |old(~switchedOnBeforeTS~0)| 1) (< 0 ~switchedOnBeforeTS~0)))))) [2024-11-18 14:22:23,323 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:23,329 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))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 .cse1 (= ~waterLevel~0 1))))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))))) [2024-11-18 14:22:23,337 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= |old(~waterLevel~0)| 1)) (.cse1 (= |old(~waterLevel~0)| 2))) (and (or (not .cse0) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse1)) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse2 .cse3 .cse1) (and .cse2 .cse0 .cse3) (and .cse3 .cse1 (= ~pumpRunning~0 1)))))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~waterLevel~0)| 1)) (.cse1 (= |old(~waterLevel~0)| 2))) (and (or (not .cse0) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse1)) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse2 .cse3 .cse1) (and .cse2 .cse0 .cse3) (and .cse3 .cse1 (= ~pumpRunning~0 1))))))) [2024-11-18 14:22:23,342 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:23,349 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= ~waterLevel~0 1)) (.cse4 (= |old(~pumpRunning~0)| 1)) (.cse1 (= ~pumpRunning~0 0))) (and (or (not .cse0) .cse1) (or .cse1 .cse2) (let ((.cse3 (= 1 ~systemActive~0))) (or (and .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and (= 2 ~waterLevel~0) .cse3 .cse0) (and .cse3 .cse0 .cse2))) (or (not .cse4) (= ~pumpRunning~0 1)) (or .cse1 (= ~methaneLevelCritical~0 0)))) Eliminated clause: (let ((.cse1 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1) (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse4 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse2) .cse0) (let ((.cse3 (= 1 ~systemActive~0))) (or (and .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and (= 2 ~waterLevel~0) .cse3 .cse2) (and .cse3 .cse2 .cse1))) (or (not .cse4) (= ~pumpRunning~0 1))))) (or .cse0 (= ~methaneLevelCritical~0 0)))) [2024-11-18 14:22:23,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:22:23,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:22:23 BoogieIcfgContainer [2024-11-18 14:22:23,365 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:22:23,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:22:23,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:22:23,366 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:22:23,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:02" (3/4) ... [2024-11-18 14:22:23,369 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:22:23,373 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-18 14:22:23,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-18 14:22:23,384 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-18 14:22:23,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:22:23,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:22:23,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:22:23,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:22:23,517 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:22:23,518 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:22:23,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:22:23,518 INFO L158 Benchmark]: Toolchain (without parser) took 22441.54ms. Allocated memory was 167.8MB in the beginning and 434.1MB in the end (delta: 266.3MB). Free memory was 108.7MB in the beginning and 324.1MB in the end (delta: -215.4MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,519 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:22:23,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.74ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 131.2MB in the end (delta: -22.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.63ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 129.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,520 INFO L158 Benchmark]: Boogie Preprocessor took 52.51ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 126.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,520 INFO L158 Benchmark]: RCFGBuilder took 479.05ms. Allocated memory is still 167.8MB. Free memory was 126.4MB in the beginning and 106.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,521 INFO L158 Benchmark]: TraceAbstraction took 21214.20ms. Allocated memory was 167.8MB in the beginning and 434.1MB in the end (delta: 266.3MB). Free memory was 105.4MB in the beginning and 332.5MB in the end (delta: -227.1MB). Peak memory consumption was 231.7MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,522 INFO L158 Benchmark]: Witness Printer took 151.70ms. Allocated memory is still 434.1MB. Free memory was 332.5MB in the beginning and 324.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:22:23,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.74ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 131.2MB in the end (delta: -22.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.63ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 129.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.51ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 126.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.05ms. Allocated memory is still 167.8MB. Free memory was 126.4MB in the beginning and 106.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 21214.20ms. Allocated memory was 167.8MB in the beginning and 434.1MB in the end (delta: 266.3MB). Free memory was 105.4MB in the beginning and 332.5MB in the end (delta: -227.1MB). Peak memory consumption was 231.7MB. Max. memory is 16.1GB. * Witness Printer took 151.70ms. Allocated memory is still 434.1MB. Free memory was 332.5MB in the beginning and 324.1MB in the end (delta: 8.4MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] - GenericResultAtLocation [Line: 759]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] - 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 - 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: 912]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3678 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3648 mSDsluCounter, 7334 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5440 mSDsCounter, 1261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4765 IncrementalHoareTripleChecker+Invalid, 6026 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1261 mSolverCounterUnsat, 1894 mSDtfsCounter, 4765 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 26 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1675 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1730occurred in iteration=14, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 463 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 2499 NumberOfCodeBlocks, 2499 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3452 ConstructedInterpolants, 0 QuantifiedInterpolants, 7819 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2818 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 2872/3550 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: 705]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 704]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 551]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 == systemActive) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) Ensures: ((((((pumpRunning == 0) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && ((((((head == \old(head)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 458]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 943]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((methaneLevelCritical == 0) || (\old(methaneLevelCritical) == 0)) && (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)))) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical != 0))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 812]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 431]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(pumpRunning) != 1) || (((pumpRunning == 0) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS))) && ((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) || ((2 == waterLevel) && (pumpRunning == 1)))) && (((((1 == systemActive) && (\old(pumpRunning) == 1)) && (\old(waterLevel) == 2)) || (((\old(waterLevel) == 1) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == 2)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 466]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 == waterLevel) && (1 == systemActive)) || ((1 == systemActive) && (waterLevel == 1)))) Ensures: (((((((2 == waterLevel) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel == 1))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (1 < waterLevel))) && ((((((head == \old(head)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 931]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((2 == waterLevel) && (((((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 2)) || (((pumpRunning == 0) && (\old(waterLevel) == 1)) && (1 == systemActive))) || (((1 == systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 492]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: (((pumpRunning == 0) || (waterLevel == 1)) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) Ensures: ((((((((2 == waterLevel) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel == 1))) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (1 < waterLevel))) && ((((((head == \old(head)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 570]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (pumpRunning == \result)) && (((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:22:23,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE