./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:08:38,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:08:38,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:08:38,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:08:38,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:08:38,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:08:38,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:08:38,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:08:38,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:08:38,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:08:38,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:08:38,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:08:38,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:08:38,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:08:38,225 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:08:38,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:08:38,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:08:38,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:08:38,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:08:38,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:08:38,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:08:38,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:08:38,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:08:38,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:08:38,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:08:38,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:08:38,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:08:38,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:08:38,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:08:38,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:08:38,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:08:38,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:08:38,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:08:38,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:08:38,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:08:38,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:08:38,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2024-11-19 22:08:38,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:08:38,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:08:38,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:08:38,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:08:38,436 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:08:38,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-19 22:08:39,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:08:39,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:08:39,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-19 22:08:39,826 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d77fe67d/12731c43ffe54730a347534916163e3d/FLAGb9d8bfe9d [2024-11-19 22:08:40,200 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d77fe67d/12731c43ffe54730a347534916163e3d [2024-11-19 22:08:40,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:08:40,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:08:40,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:08:40,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:08:40,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:08:40,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435a1e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40, skipping insertion in model container [2024-11-19 22:08:40,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:08:40,505 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2024-11-19 22:08:40,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:08:40,530 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:08:40,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-19 22:08:40,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2024-11-19 22:08:40,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2024-11-19 22:08:40,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] [2024-11-19 22:08:40,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2024-11-19 22:08:40,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] [2024-11-19 22:08:40,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] [2024-11-19 22:08:40,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] [2024-11-19 22:08:40,592 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2024-11-19 22:08:40,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:08:40,616 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:08:40,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40 WrapperNode [2024-11-19 22:08:40,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:08:40,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:08:40,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:08:40,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:08:40,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,663 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 235 [2024-11-19 22:08:40,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:08:40,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:08:40,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:08:40,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:08:40,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,690 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]. [2024-11-19 22:08:40,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:08:40,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:08:40,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:08:40,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:08:40,704 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (1/1) ... [2024-11-19 22:08:40,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:08:40,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:08:40,774 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) [2024-11-19 22:08:40,777 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 [2024-11-19 22:08:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:08:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:08:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:08:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:08:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:08:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:08:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:08:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:08:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:08:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:08:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:08:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-19 22:08:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-19 22:08:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-19 22:08:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-19 22:08:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:08:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:08:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:08:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:08:40,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:08:40,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:08:40,907 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:08:41,146 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-19 22:08:41,146 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:08:41,161 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:08:41,162 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:08:41,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:08:41 BoogieIcfgContainer [2024-11-19 22:08:41,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:08:41,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:08:41,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:08:41,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:08:41,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:08:40" (1/3) ... [2024-11-19 22:08:41,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aae5136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:08:41, skipping insertion in model container [2024-11-19 22:08:41,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:08:40" (2/3) ... [2024-11-19 22:08:41,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aae5136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:08:41, skipping insertion in model container [2024-11-19 22:08:41,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:08:41" (3/3) ... [2024-11-19 22:08:41,171 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2024-11-19 22:08:41,185 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:08:41,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:08:41,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:08:41,253 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;@117bd796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:08:41,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:08:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 22:08:41,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 22:08:41,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:41,265 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:41,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:41,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:41,270 INFO L85 PathProgramCache]: Analyzing trace with hash -483847655, now seen corresponding path program 1 times [2024-11-19 22:08:41,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:41,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425681270] [2024-11-19 22:08:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:41,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 22:08:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:08:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:41,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:41,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425681270] [2024-11-19 22:08:41,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425681270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:41,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:41,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:08:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973455357] [2024-11-19 22:08:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:41,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:08:41,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:08:41,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:08:41,473 INFO L87 Difference]: Start difference. First operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:08:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:41,497 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-11-19 22:08:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:08:41,501 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-19 22:08:41,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:41,507 INFO L225 Difference]: With dead ends: 197 [2024-11-19 22:08:41,507 INFO L226 Difference]: Without dead ends: 94 [2024-11-19 22:08:41,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:08:41,513 INFO L432 NwaCegarLoop]: 130 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, 130 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 [2024-11-19 22:08:41,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:08:41,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-19 22:08:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-19 22:08:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 80 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 22:08:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-19 22:08:41,552 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-11-19 22:08:41,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:41,552 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-19 22:08:41,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:08:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-19 22:08:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 22:08:41,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:41,555 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:41,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:08:41,555 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:41,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1007317633, now seen corresponding path program 1 times [2024-11-19 22:08:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929659627] [2024-11-19 22:08:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 22:08:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:08:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:41,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929659627] [2024-11-19 22:08:41,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929659627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:41,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:41,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:08:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342195017] [2024-11-19 22:08:41,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:41,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:08:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:41,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:08:41,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:08:41,682 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:08:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:41,706 INFO L93 Difference]: Finished difference Result 149 states and 191 transitions. [2024-11-19 22:08:41,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:08:41,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-19 22:08:41,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:41,710 INFO L225 Difference]: With dead ends: 149 [2024-11-19 22:08:41,710 INFO L226 Difference]: Without dead ends: 85 [2024-11-19 22:08:41,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:08:41,711 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 16 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 195 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 [2024-11-19 22:08:41,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:08:41,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-19 22:08:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-19 22:08:41,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 22:08:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-19 22:08:41,724 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 33 [2024-11-19 22:08:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:41,724 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-19 22:08:41,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:08:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-19 22:08:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-19 22:08:41,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:41,725 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:41,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:08:41,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:41,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash 697495445, now seen corresponding path program 1 times [2024-11-19 22:08:41,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:41,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248763882] [2024-11-19 22:08:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:41,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:08:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 22:08:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:41,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:41,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248763882] [2024-11-19 22:08:41,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248763882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:41,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:41,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:08:41,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034854999] [2024-11-19 22:08:41,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:41,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:08:41,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:41,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:08:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:08:41,891 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:08:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:42,072 INFO L93 Difference]: Finished difference Result 285 states and 373 transitions. [2024-11-19 22:08:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:08:42,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-19 22:08:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:42,075 INFO L225 Difference]: With dead ends: 285 [2024-11-19 22:08:42,075 INFO L226 Difference]: Without dead ends: 208 [2024-11-19 22:08:42,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:08:42,076 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 246 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:42,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 443 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:08:42,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-19 22:08:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 202. [2024-11-19 22:08:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 154 states have (on average 1.344155844155844) internal successors, (207), 172 states have internal predecessors, (207), 28 states have call successors, (28), 19 states have call predecessors, (28), 19 states have return successors, (29), 20 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-19 22:08:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 264 transitions. [2024-11-19 22:08:42,117 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 264 transitions. Word has length 37 [2024-11-19 22:08:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:42,117 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 264 transitions. [2024-11-19 22:08:42,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:08:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 264 transitions. [2024-11-19 22:08:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 22:08:42,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:42,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:42,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:08:42,119 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:42,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash 995675595, now seen corresponding path program 1 times [2024-11-19 22:08:42,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:42,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919224175] [2024-11-19 22:08:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:08:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-19 22:08:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 22:08:42,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:42,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919224175] [2024-11-19 22:08:42,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919224175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:42,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:42,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:08:42,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368112524] [2024-11-19 22:08:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:42,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:08:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:08:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:08:42,232 INFO L87 Difference]: Start difference. First operand 202 states and 264 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:08:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:42,353 INFO L93 Difference]: Finished difference Result 481 states and 642 transitions. [2024-11-19 22:08:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:08:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-19 22:08:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:42,355 INFO L225 Difference]: With dead ends: 481 [2024-11-19 22:08:42,356 INFO L226 Difference]: Without dead ends: 287 [2024-11-19 22:08:42,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:08:42,362 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 76 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:42,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 455 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:08:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-19 22:08:42,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2024-11-19 22:08:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 217 states have (on average 1.2857142857142858) internal successors, (279), 236 states have internal predecessors, (279), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-19 22:08:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 363 transitions. [2024-11-19 22:08:42,394 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 363 transitions. Word has length 41 [2024-11-19 22:08:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:42,394 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 363 transitions. [2024-11-19 22:08:42,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:08:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 363 transitions. [2024-11-19 22:08:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:08:42,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:42,398 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:42,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:08:42,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:42,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282667, now seen corresponding path program 1 times [2024-11-19 22:08:42,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:42,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149402932] [2024-11-19 22:08:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:08:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 22:08:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 22:08:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:42,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:42,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149402932] [2024-11-19 22:08:42,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149402932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:42,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:42,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:08:42,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775386859] [2024-11-19 22:08:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:42,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:08:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:08:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:08:42,510 INFO L87 Difference]: Start difference. First operand 285 states and 363 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:42,646 INFO L93 Difference]: Finished difference Result 616 states and 803 transitions. [2024-11-19 22:08:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:08:42,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-19 22:08:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:42,651 INFO L225 Difference]: With dead ends: 616 [2024-11-19 22:08:42,651 INFO L226 Difference]: Without dead ends: 339 [2024-11-19 22:08:42,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:08:42,656 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 61 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:42,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 395 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:08:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-19 22:08:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2024-11-19 22:08:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 278 states have internal predecessors, (329), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-11-19 22:08:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 427 transitions. [2024-11-19 22:08:42,704 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 427 transitions. Word has length 55 [2024-11-19 22:08:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:42,704 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 427 transitions. [2024-11-19 22:08:42,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 427 transitions. [2024-11-19 22:08:42,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:08:42,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:42,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:42,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:08:42,705 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:42,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:42,706 INFO L85 PathProgramCache]: Analyzing trace with hash 588246295, now seen corresponding path program 1 times [2024-11-19 22:08:42,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:42,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470704382] [2024-11-19 22:08:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:42,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:08:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 22:08:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 22:08:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470704382] [2024-11-19 22:08:42,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470704382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:42,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:42,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:08:42,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932415756] [2024-11-19 22:08:42,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:42,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:08:42,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:42,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:08:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:08:42,794 INFO L87 Difference]: Start difference. First operand 337 states and 427 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:42,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:42,900 INFO L93 Difference]: Finished difference Result 672 states and 871 transitions. [2024-11-19 22:08:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:08:42,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-19 22:08:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:42,904 INFO L225 Difference]: With dead ends: 672 [2024-11-19 22:08:42,904 INFO L226 Difference]: Without dead ends: 343 [2024-11-19 22:08:42,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:08:42,908 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 60 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:42,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 309 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:08:42,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-19 22:08:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-11-19 22:08:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 263 states have (on average 1.2661596958174905) internal successors, (333), 282 states have internal predecessors, (333), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-11-19 22:08:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 431 transitions. [2024-11-19 22:08:42,927 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 431 transitions. Word has length 55 [2024-11-19 22:08:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:42,927 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 431 transitions. [2024-11-19 22:08:42,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 431 transitions. [2024-11-19 22:08:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:08:42,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:42,929 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:42,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:08:42,929 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:42,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:42,929 INFO L85 PathProgramCache]: Analyzing trace with hash 728794905, now seen corresponding path program 1 times [2024-11-19 22:08:42,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511902814] [2024-11-19 22:08:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:42,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:08:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 22:08:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 22:08:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511902814] [2024-11-19 22:08:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511902814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:08:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401234721] [2024-11-19 22:08:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:08:43,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:08:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:08:43,038 INFO L87 Difference]: Start difference. First operand 341 states and 431 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:43,213 INFO L93 Difference]: Finished difference Result 1016 states and 1332 transitions. [2024-11-19 22:08:43,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:08:43,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-19 22:08:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:43,216 INFO L225 Difference]: With dead ends: 1016 [2024-11-19 22:08:43,216 INFO L226 Difference]: Without dead ends: 683 [2024-11-19 22:08:43,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:08:43,217 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 231 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:43,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 326 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:08:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-19 22:08:43,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 676. [2024-11-19 22:08:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 515 states have (on average 1.2349514563106796) internal successors, (636), 546 states have internal predecessors, (636), 88 states have call successors, (88), 71 states have call predecessors, (88), 72 states have return successors, (133), 86 states have call predecessors, (133), 88 states have call successors, (133) [2024-11-19 22:08:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 857 transitions. [2024-11-19 22:08:43,256 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 857 transitions. Word has length 55 [2024-11-19 22:08:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:43,257 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 857 transitions. [2024-11-19 22:08:43,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 22:08:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 857 transitions. [2024-11-19 22:08:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 22:08:43,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:43,258 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:43,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:08:43,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:43,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1287141247, now seen corresponding path program 1 times [2024-11-19 22:08:43,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597639288] [2024-11-19 22:08:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:08:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:08:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 22:08:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 22:08:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:08:43,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:43,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597639288] [2024-11-19 22:08:43,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597639288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:08:43,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:08:43,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 22:08:43,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954719276] [2024-11-19 22:08:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:08:43,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 22:08:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 22:08:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:08:43,462 INFO L87 Difference]: Start difference. First operand 676 states and 857 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 22:08:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:44,012 INFO L93 Difference]: Finished difference Result 1747 states and 2323 transitions. [2024-11-19 22:08:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 22:08:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2024-11-19 22:08:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:44,019 INFO L225 Difference]: With dead ends: 1747 [2024-11-19 22:08:44,019 INFO L226 Difference]: Without dead ends: 1216 [2024-11-19 22:08:44,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2024-11-19 22:08:44,022 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 628 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:44,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 560 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:08:44,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-19 22:08:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1030. [2024-11-19 22:08:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 786 states have (on average 1.22264631043257) internal successors, (961), 839 states have internal predecessors, (961), 131 states have call successors, (131), 98 states have call predecessors, (131), 112 states have return successors, (203), 126 states have call predecessors, (203), 131 states have call successors, (203) [2024-11-19 22:08:44,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1295 transitions. [2024-11-19 22:08:44,094 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1295 transitions. Word has length 59 [2024-11-19 22:08:44,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:44,094 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1295 transitions. [2024-11-19 22:08:44,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 22:08:44,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1295 transitions. [2024-11-19 22:08:44,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-19 22:08:44,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:08:44,096 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:44,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:08:44,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:08:44,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:08:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1032451292, now seen corresponding path program 1 times [2024-11-19 22:08:44,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:08:44,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546405819] [2024-11-19 22:08:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:08:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:08:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:08:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:08:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:08:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:08:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 22:08:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:08:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 22:08:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 22:08:44,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:08:44,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546405819] [2024-11-19 22:08:44,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546405819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:08:44,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644454280] [2024-11-19 22:08:44,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:08:44,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:08:44,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:08:44,264 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) [2024-11-19 22:08:44,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:08:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:08:44,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:08:44,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:08:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:08:44,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:08:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 22:08:44,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644454280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:08:44,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:08:44,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 16 [2024-11-19 22:08:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590387127] [2024-11-19 22:08:44,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:08:44,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 22:08:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:08:44,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 22:08:44,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-19 22:08:44,666 INFO L87 Difference]: Start difference. First operand 1030 states and 1295 transitions. Second operand has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-19 22:08:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:08:45,572 INFO L93 Difference]: Finished difference Result 2189 states and 2838 transitions. [2024-11-19 22:08:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 22:08:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 100 [2024-11-19 22:08:45,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:08:45,574 INFO L225 Difference]: With dead ends: 2189 [2024-11-19 22:08:45,574 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 22:08:45,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 216 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2024-11-19 22:08:45,580 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 283 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 22:08:45,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1622 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 22:08:45,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 22:08:45,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 22:08:45,581 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) [2024-11-19 22:08:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 22:08:45,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-11-19 22:08:45,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:08:45,582 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 22:08:45,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-19 22:08:45,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 22:08:45,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 22:08:45,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:08:45,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:08:45,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:08:45,788 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:08:45,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 22:08:49,938 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:08:49,954 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse0 .cse1) (and (= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-11-19 22:08:49,971 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse0 .cse1) (and (= |old(~pumpRunning~0)| 0) .cse2))) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-19 22:08:49,977 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|) .cse1) (and (= |old(~pumpRunning~0)| 0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-11-19 22:08:49,984 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (= ~pumpRunning~0 0) .cse2) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-19 22:08:49,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:08:49 BoogieIcfgContainer [2024-11-19 22:08:49,994 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:08:49,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:08:49,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:08:49,995 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:08:49,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:08:41" (3/4) ... [2024-11-19 22:08:49,997 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-19 22:08:50,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-19 22:08:50,007 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-19 22:08:50,008 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 22:08:50,008 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 22:08:50,008 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:08:50,009 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:08:50,090 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:08:50,090 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 22:08:50,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:08:50,091 INFO L158 Benchmark]: Toolchain (without parser) took 9888.14ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 132.3MB in the beginning and 232.7MB in the end (delta: -100.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:08:50,091 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:08:50,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.69ms. Allocated memory is still 203.4MB. Free memory was 132.2MB in the beginning and 110.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 203.4MB. Free memory was 110.2MB in the beginning and 107.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,092 INFO L158 Benchmark]: Boogie Preprocessor took 36.15ms. Allocated memory is still 203.4MB. Free memory was 107.6MB in the beginning and 105.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,092 INFO L158 Benchmark]: RCFGBuilder took 459.90ms. Allocated memory is still 203.4MB. Free memory was 105.1MB in the beginning and 153.8MB in the end (delta: -48.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,093 INFO L158 Benchmark]: TraceAbstraction took 8829.12ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 153.0MB in the beginning and 241.2MB in the end (delta: -88.2MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,093 INFO L158 Benchmark]: Witness Printer took 96.06ms. Allocated memory is still 295.7MB. Free memory was 241.2MB in the beginning and 232.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 22:08:50,094 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.69ms. Allocated memory is still 203.4MB. Free memory was 132.2MB in the beginning and 110.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 203.4MB. Free memory was 110.2MB in the beginning and 107.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.15ms. Allocated memory is still 203.4MB. Free memory was 107.6MB in the beginning and 105.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.90ms. Allocated memory is still 203.4MB. Free memory was 105.1MB in the beginning and 153.8MB in the end (delta: -48.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8829.12ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 153.0MB in the beginning and 241.2MB in the end (delta: -88.2MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. * Witness Printer took 96.06ms. Allocated memory is still 295.7MB. Free memory was 241.2MB in the beginning and 232.7MB in the end (delta: 8.5MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] - GenericResultAtLocation [Line: 993]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] * 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: 840]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1637 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1601 mSDsluCounter, 4435 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3363 mSDsCounter, 381 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2192 IncrementalHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 381 mSolverCounterUnsat, 1072 mSDtfsCounter, 2192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 275 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1030occurred in iteration=8, InterpolantAutomatonStates: 88, 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, 9 MinimizatonAttempts, 205 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276 SizeOfPredicates, 2 NumberOfNonLiveVariables, 334 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 97/123 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: 173]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) || (((((1 <= pumpRunning) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) - ProcedureContractResult [Line: 352]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((2 == waterLevel) && (1 <= \old(pumpRunning))) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 267]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) && ((((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 895]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 240]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((1 <= \old(pumpRunning)) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((((1 <= \old(switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))) && (0 != systemActive))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) && (\old(waterLevel) == 2)))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 275]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((1 <= pumpRunning) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((pumpRunning == 0) && (\old(waterLevel) <= 2))) || ((((1 <= pumpRunning) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (0 != systemActive))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= 2)) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 371]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) && (pumpRunning == \result)) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-19 22:08:50,116 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