./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product57.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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:05:55,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:05:55,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:05:55,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:05:55,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:05:55,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:05:55,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:05:55,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:05:55,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:05:55,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:05:55,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:05:55,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:05:55,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:05:55,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:05:55,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:05:55,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:05:55,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:05:55,544 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:05:55,545 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:05:55,545 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:05:55,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:05:55,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:05:55,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:05:55,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:05:55,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:05:55,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:05:55,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:05:55,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:05:55,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:05:55,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:05:55,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:05:55,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:05:55,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:05:55,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:05:55,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:05:55,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:05:55,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:05:55,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:05:55,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:05:55,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:05:55,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:05:55,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:05:55,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2024-11-22 02:05:55,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:05:55,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:05:55,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:05:55,830 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:05:55,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:05:55,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2024-11-22 02:05:57,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:05:57,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:05:57,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2024-11-22 02:05:57,552 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be3e46fd/9f9fb33b8cdd415f885e176c8b28579f/FLAG512820adf [2024-11-22 02:05:57,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be3e46fd/9f9fb33b8cdd415f885e176c8b28579f [2024-11-22 02:05:57,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:05:57,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:05:57,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:05:57,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:05:57,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:05:57,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:05:57" (1/1) ... [2024-11-22 02:05:57,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614276a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:57, skipping insertion in model container [2024-11-22 02:05:57,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:05:57" (1/1) ... [2024-11-22 02:05:57,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:05:57,928 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_spec4_product57.cil.c[18691,18704] [2024-11-22 02:05:57,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:05:57,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:05:57,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-22 02:05:57,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-22 02:05:57,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [343] [2024-11-22 02:05:57,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2024-11-22 02:05:57,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [474] [2024-11-22 02:05:57,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [512] [2024-11-22 02:05:57,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [608] [2024-11-22 02:05:57,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [974] [2024-11-22 02:05:58,035 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_spec4_product57.cil.c[18691,18704] [2024-11-22 02:05:58,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:05:58,065 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:05:58,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58 WrapperNode [2024-11-22 02:05:58,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:05:58,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:05:58,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:05:58,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:05:58,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,118 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 227 [2024-11-22 02:05:58,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:05:58,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:05:58,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:05:58,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:05:58,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,144 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,160 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]. [2024-11-22 02:05:58,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:05:58,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:05:58,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:05:58,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:05:58,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (1/1) ... [2024-11-22 02:05:58,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:05:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:05:58,234 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) [2024-11-22 02:05:58,237 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 [2024-11-22 02:05:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:05:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:05:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:05:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:05:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:05:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:05:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:05:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:05:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:05:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:05:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:05:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:05:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:05:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:05:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:05:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:05:58,406 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:05:58,408 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:05:58,670 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-22 02:05:58,670 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:05:58,682 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:05:58,683 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:05:58,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:58 BoogieIcfgContainer [2024-11-22 02:05:58,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:05:58,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:05:58,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:05:58,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:05:58,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:05:57" (1/3) ... [2024-11-22 02:05:58,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5209f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:05:58, skipping insertion in model container [2024-11-22 02:05:58,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:58" (2/3) ... [2024-11-22 02:05:58,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5209f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:05:58, skipping insertion in model container [2024-11-22 02:05:58,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:58" (3/3) ... [2024-11-22 02:05:58,691 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2024-11-22 02:05:58,703 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:05:58,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:05:58,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:05:58,762 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;@40d3d6e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:05:58,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:05:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 02:05:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 02:05:58,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:58,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:58,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:58,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1290449034, now seen corresponding path program 1 times [2024-11-22 02:05:58,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042308289] [2024-11-22 02:05:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:58,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:58,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042308289] [2024-11-22 02:05:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042308289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:05:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766599721] [2024-11-22 02:05:58,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:58,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:05:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:05:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:05:58,976 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:58,999 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2024-11-22 02:05:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:05:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-22 02:05:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:59,019 INFO L225 Difference]: With dead ends: 164 [2024-11-22 02:05:59,019 INFO L226 Difference]: Without dead ends: 77 [2024-11-22 02:05:59,026 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 [2024-11-22 02:05:59,030 INFO L432 NwaCegarLoop]: 109 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, 109 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 [2024-11-22 02:05:59,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-22 02:05:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-22 02:05:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 02:05:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-11-22 02:05:59,098 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2024-11-22 02:05:59,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:59,099 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-11-22 02:05:59,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-11-22 02:05:59,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 02:05:59,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:59,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:59,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:05:59,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:59,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1967581778, now seen corresponding path program 1 times [2024-11-22 02:05:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:59,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902931861] [2024-11-22 02:05:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:59,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902931861] [2024-11-22 02:05:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902931861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:59,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:59,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:05:59,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941020236] [2024-11-22 02:05:59,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:59,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:05:59,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:05:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:05:59,263 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:59,287 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2024-11-22 02:05:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:05:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-22 02:05:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:59,289 INFO L225 Difference]: With dead ends: 120 [2024-11-22 02:05:59,289 INFO L226 Difference]: Without dead ends: 68 [2024-11-22 02:05:59,290 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 [2024-11-22 02:05:59,291 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 12 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 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 [2024-11-22 02:05:59,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-22 02:05:59,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-22 02:05:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-22 02:05:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2024-11-22 02:05:59,309 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2024-11-22 02:05:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:59,310 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2024-11-22 02:05:59,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2024-11-22 02:05:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 02:05:59,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:59,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:59,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:05:59,313 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:59,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash 764053852, now seen corresponding path program 1 times [2024-11-22 02:05:59,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:59,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110267654] [2024-11-22 02:05:59,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110267654] [2024-11-22 02:05:59,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110267654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:59,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:05:59,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663182023] [2024-11-22 02:05:59,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:59,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:05:59,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:59,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:05:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:05:59,473 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:59,578 INFO L93 Difference]: Finished difference Result 129 states and 170 transitions. [2024-11-22 02:05:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:05:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 02:05:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:59,580 INFO L225 Difference]: With dead ends: 129 [2024-11-22 02:05:59,581 INFO L226 Difference]: Without dead ends: 68 [2024-11-22 02:05:59,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:05:59,583 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:59,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 220 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:05:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-22 02:05:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-22 02:05:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-22 02:05:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2024-11-22 02:05:59,598 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 24 [2024-11-22 02:05:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:59,598 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2024-11-22 02:05:59,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-11-22 02:05:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 02:05:59,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:59,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:59,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:05:59,600 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:59,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:59,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1882395024, now seen corresponding path program 1 times [2024-11-22 02:05:59,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:59,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279460890] [2024-11-22 02:05:59,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:59,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:59,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:59,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279460890] [2024-11-22 02:05:59,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279460890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:59,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:59,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:05:59,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883158006] [2024-11-22 02:05:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:59,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:05:59,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:59,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:05:59,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:05:59,681 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:59,722 INFO L93 Difference]: Finished difference Result 168 states and 221 transitions. [2024-11-22 02:05:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:05:59,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-22 02:05:59,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:59,726 INFO L225 Difference]: With dead ends: 168 [2024-11-22 02:05:59,727 INFO L226 Difference]: Without dead ends: 107 [2024-11-22 02:05:59,727 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 [2024-11-22 02:05:59,731 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:59,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 139 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:59,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-22 02:05:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-22 02:05:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 92 states have internal predecessors, (110), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-22 02:05:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-22 02:05:59,755 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 32 [2024-11-22 02:05:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:59,755 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-22 02:05:59,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2024-11-22 02:05:59,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 02:05:59,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:59,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:59,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:05:59,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:59,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1383918710, now seen corresponding path program 1 times [2024-11-22 02:05:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:59,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096681011] [2024-11-22 02:05:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:59,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096681011] [2024-11-22 02:05:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096681011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:05:59,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413279190] [2024-11-22 02:05:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:59,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:05:59,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:59,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:05:59,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:05:59,934 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 02:06:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:00,018 INFO L93 Difference]: Finished difference Result 276 states and 368 transitions. [2024-11-22 02:06:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 40 [2024-11-22 02:06:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:00,024 INFO L225 Difference]: With dead ends: 276 [2024-11-22 02:06:00,024 INFO L226 Difference]: Without dead ends: 178 [2024-11-22 02:06:00,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:00,027 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 39 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:00,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 314 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-22 02:06:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-22 02:06:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 142 states have (on average 1.2816901408450705) internal successors, (182), 153 states have internal predecessors, (182), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (27), 17 states have call predecessors, (27), 18 states have call successors, (27) [2024-11-22 02:06:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 227 transitions. [2024-11-22 02:06:00,056 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 227 transitions. Word has length 40 [2024-11-22 02:06:00,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:00,057 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 227 transitions. [2024-11-22 02:06:00,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 02:06:00,057 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 227 transitions. [2024-11-22 02:06:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 02:06:00,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:00,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:00,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:06:00,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:00,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash 325624560, now seen corresponding path program 1 times [2024-11-22 02:06:00,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526566248] [2024-11-22 02:06:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:00,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:00,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526566248] [2024-11-22 02:06:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526566248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518929254] [2024-11-22 02:06:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:00,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:00,203 INFO L87 Difference]: Start difference. First operand 178 states and 227 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 02:06:00,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:00,437 INFO L93 Difference]: Finished difference Result 202 states and 255 transitions. [2024-11-22 02:06:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:06:00,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-11-22 02:06:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:00,442 INFO L225 Difference]: With dead ends: 202 [2024-11-22 02:06:00,443 INFO L226 Difference]: Without dead ends: 200 [2024-11-22 02:06:00,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:06:00,444 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 118 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:00,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 286 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-22 02:06:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2024-11-22 02:06:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2641509433962264) internal successors, (201), 170 states have internal predecessors, (201), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (32), 18 states have call predecessors, (32), 18 states have call successors, (32) [2024-11-22 02:06:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 251 transitions. [2024-11-22 02:06:00,468 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 251 transitions. Word has length 44 [2024-11-22 02:06:00,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:00,468 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 251 transitions. [2024-11-22 02:06:00,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 02:06:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 251 transitions. [2024-11-22 02:06:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:00,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:00,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:00,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:06:00,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:00,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1024939841, now seen corresponding path program 1 times [2024-11-22 02:06:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047014895] [2024-11-22 02:06:00,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:00,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:00,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047014895] [2024-11-22 02:06:00,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047014895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:00,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:00,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826895999] [2024-11-22 02:06:00,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:00,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:00,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:00,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:00,580 INFO L87 Difference]: Start difference. First operand 198 states and 251 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:00,619 INFO L93 Difference]: Finished difference Result 395 states and 519 transitions. [2024-11-22 02:06:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-22 02:06:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:00,622 INFO L225 Difference]: With dead ends: 395 [2024-11-22 02:06:00,622 INFO L226 Difference]: Without dead ends: 204 [2024-11-22 02:06:00,623 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 [2024-11-22 02:06:00,626 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 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 [2024-11-22 02:06:00,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-22 02:06:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-22 02:06:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.2545454545454546) internal successors, (207), 176 states have internal predecessors, (207), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (32), 18 states have call predecessors, (32), 18 states have call successors, (32) [2024-11-22 02:06:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 257 transitions. [2024-11-22 02:06:00,662 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 257 transitions. Word has length 46 [2024-11-22 02:06:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:00,662 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 257 transitions. [2024-11-22 02:06:00,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 257 transitions. [2024-11-22 02:06:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:00,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:00,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:00,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:06:00,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:00,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash -969204865, now seen corresponding path program 1 times [2024-11-22 02:06:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:00,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807062078] [2024-11-22 02:06:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:00,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:00,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:00,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807062078] [2024-11-22 02:06:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807062078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:00,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:00,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:00,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454228082] [2024-11-22 02:06:00,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:00,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:00,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:00,782 INFO L87 Difference]: Start difference. First operand 204 states and 257 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:00,824 INFO L93 Difference]: Finished difference Result 367 states and 471 transitions. [2024-11-22 02:06:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:06:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-22 02:06:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:00,827 INFO L225 Difference]: With dead ends: 367 [2024-11-22 02:06:00,827 INFO L226 Difference]: Without dead ends: 170 [2024-11-22 02:06:00,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:00,829 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:00,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-22 02:06:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-22 02:06:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.2408759124087592) internal successors, (170), 146 states have internal predecessors, (170), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-22 02:06:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2024-11-22 02:06:00,856 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 46 [2024-11-22 02:06:00,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:00,857 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2024-11-22 02:06:00,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:00,857 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2024-11-22 02:06:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:00,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:00,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:00,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:06:00,861 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:00,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:00,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1786853315, now seen corresponding path program 1 times [2024-11-22 02:06:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:00,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600474879] [2024-11-22 02:06:00,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:00,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:00,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:00,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:00,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600474879] [2024-11-22 02:06:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600474879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:00,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:00,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087201686] [2024-11-22 02:06:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:00,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:00,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:00,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:00,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:00,972 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:01,043 INFO L93 Difference]: Finished difference Result 351 states and 460 transitions. [2024-11-22 02:06:01,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:01,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-22 02:06:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:01,045 INFO L225 Difference]: With dead ends: 351 [2024-11-22 02:06:01,045 INFO L226 Difference]: Without dead ends: 228 [2024-11-22 02:06:01,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:01,049 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 42 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:01,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 462 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-22 02:06:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-22 02:06:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 180 states have (on average 1.2333333333333334) internal successors, (222), 192 states have internal predecessors, (222), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) [2024-11-22 02:06:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2024-11-22 02:06:01,074 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 46 [2024-11-22 02:06:01,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:01,075 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2024-11-22 02:06:01,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:01,075 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2024-11-22 02:06:01,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 02:06:01,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:01,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:01,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:06:01,077 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:01,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1370841909, now seen corresponding path program 1 times [2024-11-22 02:06:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578898415] [2024-11-22 02:06:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:06:01,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:01,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578898415] [2024-11-22 02:06:01,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578898415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:01,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306576846] [2024-11-22 02:06:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:01,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:01,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:01,281 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) [2024-11-22 02:06:01,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:06:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:01,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:06:01,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:01,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:06:01,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306576846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:01,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:01,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-22 02:06:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464726076] [2024-11-22 02:06:01,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:01,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:01,683 INFO L87 Difference]: Start difference. First operand 228 states and 287 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:06:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:01,820 INFO L93 Difference]: Finished difference Result 531 states and 714 transitions. [2024-11-22 02:06:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:06:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2024-11-22 02:06:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:01,823 INFO L225 Difference]: With dead ends: 531 [2024-11-22 02:06:01,823 INFO L226 Difference]: Without dead ends: 350 [2024-11-22 02:06:01,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:06:01,825 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 82 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:01,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 469 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-22 02:06:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 321. [2024-11-22 02:06:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 269 states have internal predecessors, (312), 33 states have call successors, (33), 33 states have call predecessors, (33), 35 states have return successors, (66), 31 states have call predecessors, (66), 33 states have call successors, (66) [2024-11-22 02:06:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 411 transitions. [2024-11-22 02:06:01,850 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 411 transitions. Word has length 80 [2024-11-22 02:06:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:01,850 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 411 transitions. [2024-11-22 02:06:01,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:06:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 411 transitions. [2024-11-22 02:06:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 02:06:01,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:01,852 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-22 02:06:01,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:06:02,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:06:02,056 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:02,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2051063763, now seen corresponding path program 2 times [2024-11-22 02:06:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:02,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811716516] [2024-11-22 02:06:02,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 02:06:02,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:02,089 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 02:06:02,089 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 02:06:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 02:06:02,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811716516] [2024-11-22 02:06:02,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811716516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:02,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047911871] [2024-11-22 02:06:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:02,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:02,254 INFO L87 Difference]: Start difference. First operand 321 states and 411 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 02:06:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:02,339 INFO L93 Difference]: Finished difference Result 776 states and 1035 transitions. [2024-11-22 02:06:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:02,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 114 [2024-11-22 02:06:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:02,344 INFO L225 Difference]: With dead ends: 776 [2024-11-22 02:06:02,345 INFO L226 Difference]: Without dead ends: 501 [2024-11-22 02:06:02,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:02,347 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 110 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:02,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 283 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-22 02:06:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 486. [2024-11-22 02:06:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 383 states have (on average 1.227154046997389) internal successors, (470), 405 states have internal predecessors, (470), 50 states have call successors, (50), 50 states have call predecessors, (50), 52 states have return successors, (96), 46 states have call predecessors, (96), 50 states have call successors, (96) [2024-11-22 02:06:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 616 transitions. [2024-11-22 02:06:02,383 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 616 transitions. Word has length 114 [2024-11-22 02:06:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:02,384 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 616 transitions. [2024-11-22 02:06:02,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 02:06:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 616 transitions. [2024-11-22 02:06:02,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 02:06:02,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:02,386 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-22 02:06:02,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:06:02,387 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:02,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:02,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1607163089, now seen corresponding path program 1 times [2024-11-22 02:06:02,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:02,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741176265] [2024-11-22 02:06:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:02,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 02:06:02,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:02,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741176265] [2024-11-22 02:06:02,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741176265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:02,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:02,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:06:02,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448278496] [2024-11-22 02:06:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:02,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:06:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:06:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:02,531 INFO L87 Difference]: Start difference. First operand 486 states and 616 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 02:06:02,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:02,589 INFO L93 Difference]: Finished difference Result 698 states and 875 transitions. [2024-11-22 02:06:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:06:02,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 114 [2024-11-22 02:06:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:02,591 INFO L225 Difference]: With dead ends: 698 [2024-11-22 02:06:02,591 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:06:02,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:02,593 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:02,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 459 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:06:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:06:02,595 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) [2024-11-22 02:06:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:06:02,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2024-11-22 02:06:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:02,596 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:06:02,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 02:06:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:06:02,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:06:02,599 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:06:02,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:06:02,602 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:02,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:06:03,637 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:06:03,672 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0)) (< |old(~waterLevel~0)| 2)) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0)) (< |old(~waterLevel~0)| 2)) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|)))))) [2024-11-22 02:06:03,678 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:06:03,681 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-22 02:06:03,686 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (<= 2 ~waterLevel~0) (< |old(~waterLevel~0)| 2)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (< |old(~waterLevel~0)| 2) (< 1 ~waterLevel~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))))) [2024-11-22 02:06:03,689 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:06:03,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:06:03 BoogieIcfgContainer [2024-11-22 02:06:03,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:06:03,690 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:06:03,690 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:06:03,691 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:06:03,691 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:58" (3/4) ... [2024-11-22 02:06:03,694 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:06:03,698 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:06:03,698 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:06:03,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:06:03,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:06:03,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:06:03,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:06:03,705 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-22 02:06:03,705 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:06:03,705 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:06:03,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:03,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:03,827 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:06:03,827 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:06:03,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:06:03,828 INFO L158 Benchmark]: Toolchain (without parser) took 6260.70ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 76.9MB in the beginning and 201.0MB in the end (delta: -124.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:06:03,828 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:06:03,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.73ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 54.9MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.63ms. Allocated memory is still 146.8MB. Free memory was 54.9MB in the beginning and 52.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,831 INFO L158 Benchmark]: Boogie Preprocessor took 78.32ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 52.4MB in the beginning and 188.1MB in the end (delta: -135.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,831 INFO L158 Benchmark]: RCFGBuilder took 485.56ms. Allocated memory is still 218.1MB. Free memory was 188.0MB in the beginning and 172.0MB in the end (delta: 16.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,831 INFO L158 Benchmark]: TraceAbstraction took 5003.96ms. Allocated memory was 218.1MB in the beginning and 262.1MB in the end (delta: 44.0MB). Free memory was 172.0MB in the beginning and 209.4MB in the end (delta: -37.4MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,832 INFO L158 Benchmark]: Witness Printer took 137.00ms. Allocated memory is still 262.1MB. Free memory was 209.4MB in the beginning and 201.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:06:03,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.73ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 54.9MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.63ms. Allocated memory is still 146.8MB. Free memory was 54.9MB in the beginning and 52.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.32ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 52.4MB in the beginning and 188.1MB in the end (delta: -135.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.56ms. Allocated memory is still 218.1MB. Free memory was 188.0MB in the beginning and 172.0MB in the end (delta: 16.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5003.96ms. Allocated memory was 218.1MB in the beginning and 262.1MB in the end (delta: 44.0MB). Free memory was 172.0MB in the beginning and 209.4MB in the end (delta: -37.4MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. * Witness Printer took 137.00ms. Allocated memory is still 262.1MB. Free memory was 209.4MB in the beginning and 201.0MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [343] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 474]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [474] - GenericResultAtLocation [Line: 512]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [512] - GenericResultAtLocation [Line: 608]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [608] - GenericResultAtLocation [Line: 974]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [974] - 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: 979]: 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 7 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 560 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 554 mSDsluCounter, 3636 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2494 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 1142 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=11, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 48 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 705 NumberOfCodeBlocks, 705 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 771 ConstructedInterpolants, 0 QuantifiedInterpolants, 1295 SizeOfPredicates, 2 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 190/208 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: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - ProcedureContractResult [Line: 156]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 398]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 514]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 132]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(waterLevel) != 1) || (waterLevel == 1)) && (((\old(pumpRunning) != 0) || (\old(waterLevel) < 2)) || (1 < waterLevel))) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 164]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: (((((1 == systemActive) && (\old(pumpRunning) == 0)) && ((waterLevel != 1) || (pumpRunning == 0))) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 386]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((2 <= waterLevel) && (1 == systemActive)) && ((1 < \old(waterLevel)) || ((pumpRunning == 0) && (\old(waterLevel) == 1)))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:06:03,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE