./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_spec4_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:00:38,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:00:38,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:00:38,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:00:38,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:00:38,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:00:38,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:00:38,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:00:38,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:00:38,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:00:38,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:00:38,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:00:38,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:00:38,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:00:38,611 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:00:38,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:00:38,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:00:38,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:00:38,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:00:38,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:00:38,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:00:38,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:00:38,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:00:38,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:00:38,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:00:38,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:00:38,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:00:38,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:00:38,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:00:38,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:00:38,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:00:38,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:00:38,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:38,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:00:38,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:00:38,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:00:38,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:00:38,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:00:38,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:00:38,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:00:38,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:00:38,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:00:38,621 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f [2024-10-11 03:00:38,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:00:38,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:00:38,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:00:38,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:00:38,929 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:00:38,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2024-10-11 03:00:40,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:00:40,636 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:00:40,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2024-10-11 03:00:40,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0153f5765/997ea83d6e56417e849bbaec31ce9b4a/FLAG39683d503 [2024-10-11 03:00:40,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0153f5765/997ea83d6e56417e849bbaec31ce9b4a [2024-10-11 03:00:40,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:00:40,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:00:40,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:40,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:00:40,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:00:40,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:40" (1/1) ... [2024-10-11 03:00:40,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cef6377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:40, skipping insertion in model container [2024-10-11 03:00:40,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:40" (1/1) ... [2024-10-11 03:00:40,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:00:40,935 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2024-10-11 03:00:40,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:40,982 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:00:40,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-11 03:00:40,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2024-10-11 03:00:40,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] [2024-10-11 03:00:40,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] [2024-10-11 03:00:40,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] [2024-10-11 03:00:40,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] [2024-10-11 03:00:40,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] [2024-10-11 03:00:40,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] [2024-10-11 03:00:41,052 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2024-10-11 03:00:41,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:41,078 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:00:41,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41 WrapperNode [2024-10-11 03:00:41,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:41,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:41,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:00:41,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:00:41,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,149 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 233 [2024-10-11 03:00:41,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:41,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:00:41,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:00:41,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:00:41,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,205 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:00:41,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:00:41,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:00:41,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:00:41,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:00:41,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (1/1) ... [2024-10-11 03:00:41,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:41,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:41,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:00:41,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:00:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:00:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:00:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:00:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:00:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:00:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:00:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:00:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:00:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:00:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:00:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:00:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:00:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:00:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:00:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:00:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:00:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:00:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:00:41,389 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:00:41,391 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:00:41,614 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-10-11 03:00:41,615 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:00:41,689 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:00:41,689 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:00:41,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:41 BoogieIcfgContainer [2024-10-11 03:00:41,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:00:41,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:00:41,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:00:41,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:00:41,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:00:40" (1/3) ... [2024-10-11 03:00:41,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f31e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:41, skipping insertion in model container [2024-10-11 03:00:41,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:41" (2/3) ... [2024-10-11 03:00:41,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f31e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:41, skipping insertion in model container [2024-10-11 03:00:41,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:41" (3/3) ... [2024-10-11 03:00:41,696 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2024-10-11 03:00:41,710 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:00:41,710 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:00:41,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:00:41,769 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;@3e0f0d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:00:41,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:00:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-11 03:00:41,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 03:00:41,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:41,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:41,791 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:41,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:41,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2028903992, now seen corresponding path program 1 times [2024-10-11 03:00:41,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:41,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115897064] [2024-10-11 03:00:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:41,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:42,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:42,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115897064] [2024-10-11 03:00:42,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115897064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:42,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:42,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382017609] [2024-10-11 03:00:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:42,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:00:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:42,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:00:42,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:42,056 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:42,115 INFO L93 Difference]: Finished difference Result 140 states and 205 transitions. [2024-10-11 03:00:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:00:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 03:00:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:42,125 INFO L225 Difference]: With dead ends: 140 [2024-10-11 03:00:42,125 INFO L226 Difference]: Without dead ends: 66 [2024-10-11 03:00:42,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:42,130 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:42,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:42,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-11 03:00:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-11 03:00:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.446808510638298) internal successors, (68), 55 states have internal predecessors, (68), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-11 03:00:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2024-10-11 03:00:42,168 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 12 [2024-10-11 03:00:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:42,169 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2024-10-11 03:00:42,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,169 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2024-10-11 03:00:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 03:00:42,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:42,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:42,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:00:42,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:42,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash -104630247, now seen corresponding path program 1 times [2024-10-11 03:00:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:42,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162266226] [2024-10-11 03:00:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:42,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:42,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:42,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162266226] [2024-10-11 03:00:42,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162266226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:42,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:42,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933811135] [2024-10-11 03:00:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:42,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:42,277 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:42,307 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2024-10-11 03:00:42,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:42,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 03:00:42,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:42,308 INFO L225 Difference]: With dead ends: 102 [2024-10-11 03:00:42,308 INFO L226 Difference]: Without dead ends: 58 [2024-10-11 03:00:42,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:42,310 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:42,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 116 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-11 03:00:42,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-11 03:00:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 03:00:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-10-11 03:00:42,317 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 13 [2024-10-11 03:00:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:42,317 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-10-11 03:00:42,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2024-10-11 03:00:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 03:00:42,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:42,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:42,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:00:42,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:42,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 403281525, now seen corresponding path program 1 times [2024-10-11 03:00:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:42,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386936458] [2024-10-11 03:00:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:42,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:42,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386936458] [2024-10-11 03:00:42,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386936458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:42,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:42,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:42,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163136203] [2024-10-11 03:00:42,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:42,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:42,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:42,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:42,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:42,402 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:42,456 INFO L93 Difference]: Finished difference Result 170 states and 237 transitions. [2024-10-11 03:00:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:42,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 03:00:42,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:42,459 INFO L225 Difference]: With dead ends: 170 [2024-10-11 03:00:42,459 INFO L226 Difference]: Without dead ends: 114 [2024-10-11 03:00:42,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:42,460 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:42,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 135 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:42,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-11 03:00:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2024-10-11 03:00:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.4875) internal successors, (119), 95 states have internal predecessors, (119), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 03:00:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2024-10-11 03:00:42,477 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 16 [2024-10-11 03:00:42,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:42,478 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2024-10-11 03:00:42,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,478 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2024-10-11 03:00:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 03:00:42,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:42,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:42,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:00:42,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:42,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash 111947608, now seen corresponding path program 1 times [2024-10-11 03:00:42,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:42,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333916986] [2024-10-11 03:00:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:42,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:42,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:42,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333916986] [2024-10-11 03:00:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333916986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520231576] [2024-10-11 03:00:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:42,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:42,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:42,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:42,589 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:42,688 INFO L93 Difference]: Finished difference Result 319 states and 462 transitions. [2024-10-11 03:00:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-11 03:00:42,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:42,693 INFO L225 Difference]: With dead ends: 319 [2024-10-11 03:00:42,695 INFO L226 Difference]: Without dead ends: 210 [2024-10-11 03:00:42,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:42,697 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 53 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:42,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 184 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-11 03:00:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-10-11 03:00:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 151 states have (on average 1.4503311258278146) internal successors, (219), 178 states have internal predecessors, (219), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2024-10-11 03:00:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2024-10-11 03:00:42,725 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 19 [2024-10-11 03:00:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:42,725 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2024-10-11 03:00:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2024-10-11 03:00:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:00:42,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:42,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:42,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:00:42,727 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:42,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash -977829603, now seen corresponding path program 1 times [2024-10-11 03:00:42,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:42,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251576142] [2024-10-11 03:00:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:42,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:42,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:42,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251576142] [2024-10-11 03:00:42,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251576142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:42,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:42,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:42,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248668601] [2024-10-11 03:00:42,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:42,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:42,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:42,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:42,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:42,806 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:42,876 INFO L93 Difference]: Finished difference Result 524 states and 747 transitions. [2024-10-11 03:00:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:42,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-11 03:00:42,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:42,881 INFO L225 Difference]: With dead ends: 524 [2024-10-11 03:00:42,882 INFO L226 Difference]: Without dead ends: 316 [2024-10-11 03:00:42,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:42,884 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 45 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:42,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 170 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:42,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-10-11 03:00:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 310. [2024-10-11 03:00:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 231 states have (on average 1.3636363636363635) internal successors, (315), 255 states have internal predecessors, (315), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2024-10-11 03:00:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 415 transitions. [2024-10-11 03:00:42,909 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 415 transitions. Word has length 21 [2024-10-11 03:00:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:42,910 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 415 transitions. [2024-10-11 03:00:42,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 415 transitions. [2024-10-11 03:00:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 03:00:42,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:42,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:42,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:00:42,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1826868804, now seen corresponding path program 1 times [2024-10-11 03:00:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:42,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027699304] [2024-10-11 03:00:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:42,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:42,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 03:00:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:43,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:43,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027699304] [2024-10-11 03:00:43,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027699304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:43,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:43,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:00:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880924874] [2024-10-11 03:00:43,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:43,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:00:43,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:00:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:00:43,096 INFO L87 Difference]: Start difference. First operand 310 states and 415 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:43,304 INFO L93 Difference]: Finished difference Result 734 states and 1026 transitions. [2024-10-11 03:00:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:00:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-11 03:00:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:43,308 INFO L225 Difference]: With dead ends: 734 [2024-10-11 03:00:43,309 INFO L226 Difference]: Without dead ends: 426 [2024-10-11 03:00:43,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:00:43,312 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 107 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:43,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 173 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:00:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-11 03:00:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 396. [2024-10-11 03:00:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 297 states have (on average 1.3468013468013469) internal successors, (400), 331 states have internal predecessors, (400), 47 states have call successors, (47), 39 states have call predecessors, (47), 51 states have return successors, (85), 44 states have call predecessors, (85), 47 states have call successors, (85) [2024-10-11 03:00:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 532 transitions. [2024-10-11 03:00:43,366 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 532 transitions. Word has length 34 [2024-10-11 03:00:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:43,367 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 532 transitions. [2024-10-11 03:00:43,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 532 transitions. [2024-10-11 03:00:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 03:00:43,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:43,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:43,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:00:43,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:43,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:43,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2085034242, now seen corresponding path program 1 times [2024-10-11 03:00:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:43,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760456402] [2024-10-11 03:00:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:43,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 03:00:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:43,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:43,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760456402] [2024-10-11 03:00:43,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760456402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:43,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:43,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:00:43,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201167826] [2024-10-11 03:00:43,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:43,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:00:43,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:43,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:00:43,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:43,483 INFO L87 Difference]: Start difference. First operand 396 states and 532 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:43,795 INFO L93 Difference]: Finished difference Result 774 states and 1056 transitions. [2024-10-11 03:00:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 03:00:43,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-11 03:00:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:43,798 INFO L225 Difference]: With dead ends: 774 [2024-10-11 03:00:43,798 INFO L226 Difference]: Without dead ends: 380 [2024-10-11 03:00:43,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:00:43,799 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 303 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:43,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 193 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:00:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-11 03:00:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 308. [2024-10-11 03:00:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 256 states have internal predecessors, (309), 38 states have call successors, (38), 32 states have call predecessors, (38), 38 states have return successors, (60), 33 states have call predecessors, (60), 38 states have call successors, (60) [2024-10-11 03:00:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 407 transitions. [2024-10-11 03:00:43,818 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 407 transitions. Word has length 34 [2024-10-11 03:00:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:43,818 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 407 transitions. [2024-10-11 03:00:43,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 407 transitions. [2024-10-11 03:00:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 03:00:43,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:43,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:43,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:00:43,820 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:43,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1073916992, now seen corresponding path program 1 times [2024-10-11 03:00:43,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:43,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136289489] [2024-10-11 03:00:43,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:43,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 03:00:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:43,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:43,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136289489] [2024-10-11 03:00:43,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136289489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:43,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:43,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:00:43,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896142616] [2024-10-11 03:00:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:43,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:00:43,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:00:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:00:43,876 INFO L87 Difference]: Start difference. First operand 308 states and 407 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:44,154 INFO L93 Difference]: Finished difference Result 714 states and 1009 transitions. [2024-10-11 03:00:44,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 03:00:44,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-11 03:00:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:44,157 INFO L225 Difference]: With dead ends: 714 [2024-10-11 03:00:44,157 INFO L226 Difference]: Without dead ends: 482 [2024-10-11 03:00:44,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:00:44,159 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 160 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:44,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 224 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:00:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-10-11 03:00:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 464. [2024-10-11 03:00:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 347 states have (on average 1.2997118155619596) internal successors, (451), 379 states have internal predecessors, (451), 57 states have call successors, (57), 49 states have call predecessors, (57), 59 states have return successors, (115), 58 states have call predecessors, (115), 57 states have call successors, (115) [2024-10-11 03:00:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 623 transitions. [2024-10-11 03:00:44,183 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 623 transitions. Word has length 34 [2024-10-11 03:00:44,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:44,184 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 623 transitions. [2024-10-11 03:00:44,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:00:44,184 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 623 transitions. [2024-10-11 03:00:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:00:44,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:44,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:44,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:00:44,186 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:44,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1640906240, now seen corresponding path program 1 times [2024-10-11 03:00:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:44,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184566783] [2024-10-11 03:00:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:00:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:00:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:44,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:44,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184566783] [2024-10-11 03:00:44,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184566783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:44,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:44,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:00:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207149399] [2024-10-11 03:00:44,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:44,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:00:44,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:44,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:00:44,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:44,240 INFO L87 Difference]: Start difference. First operand 464 states and 623 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 03:00:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:44,446 INFO L93 Difference]: Finished difference Result 783 states and 1048 transitions. [2024-10-11 03:00:44,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:00:44,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2024-10-11 03:00:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:44,449 INFO L225 Difference]: With dead ends: 783 [2024-10-11 03:00:44,449 INFO L226 Difference]: Without dead ends: 321 [2024-10-11 03:00:44,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:00:44,450 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 266 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:44,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 165 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:00:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-11 03:00:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 307. [2024-10-11 03:00:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 230 states have (on average 1.291304347826087) internal successors, (297), 252 states have internal predecessors, (297), 38 states have call successors, (38), 34 states have call predecessors, (38), 38 states have return successors, (68), 38 states have call predecessors, (68), 38 states have call successors, (68) [2024-10-11 03:00:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 403 transitions. [2024-10-11 03:00:44,468 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 403 transitions. Word has length 54 [2024-10-11 03:00:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:44,469 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 403 transitions. [2024-10-11 03:00:44,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 03:00:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 403 transitions. [2024-10-11 03:00:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:00:44,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:44,470 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:00:44,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:00:44,470 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:44,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash -333229304, now seen corresponding path program 1 times [2024-10-11 03:00:44,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:44,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615937665] [2024-10-11 03:00:44,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:44,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:00:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:00:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 03:00:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:00:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:00:44,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:44,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615937665] [2024-10-11 03:00:44,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615937665] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:00:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313783908] [2024-10-11 03:00:44,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:44,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:00:44,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:44,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:00:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:00:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:44,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:00:44,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:00:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:44,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:00:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:00:44,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313783908] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:00:44,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:00:44,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2024-10-11 03:00:44,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173393091] [2024-10-11 03:00:44,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:00:44,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:00:44,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:44,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:00:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:00:44,798 INFO L87 Difference]: Start difference. First operand 307 states and 403 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 03:00:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:45,166 INFO L93 Difference]: Finished difference Result 734 states and 1016 transitions. [2024-10-11 03:00:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 03:00:45,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-10-11 03:00:45,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:45,169 INFO L225 Difference]: With dead ends: 734 [2024-10-11 03:00:45,169 INFO L226 Difference]: Without dead ends: 488 [2024-10-11 03:00:45,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:00:45,170 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 259 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:45,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 260 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:00:45,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-11 03:00:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 419. [2024-10-11 03:00:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 311 states have (on average 1.2958199356913183) internal successors, (403), 342 states have internal predecessors, (403), 54 states have call successors, (54), 48 states have call predecessors, (54), 53 states have return successors, (102), 50 states have call predecessors, (102), 54 states have call successors, (102) [2024-10-11 03:00:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 559 transitions. [2024-10-11 03:00:45,194 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 559 transitions. Word has length 63 [2024-10-11 03:00:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:45,194 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 559 transitions. [2024-10-11 03:00:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 03:00:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 559 transitions. [2024-10-11 03:00:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:00:45,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:45,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:45,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:00:45,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 03:00:45,400 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:45,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1305312960, now seen corresponding path program 2 times [2024-10-11 03:00:45,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:45,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466360284] [2024-10-11 03:00:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:00:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:00:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 03:00:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:00:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:00:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 03:00:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:00:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:00:45,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:45,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466360284] [2024-10-11 03:00:45,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466360284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:00:45,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995979229] [2024-10-11 03:00:45,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:00:45,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:00:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:45,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:00:45,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:00:45,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 03:00:45,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:00:45,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 03:00:45,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:00:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 03:00:45,767 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:00:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995979229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:45,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:00:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-11 03:00:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282494313] [2024-10-11 03:00:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:45,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:00:45,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:00:45,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:00:45,784 INFO L87 Difference]: Start difference. First operand 419 states and 559 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 03:00:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:45,961 INFO L93 Difference]: Finished difference Result 1096 states and 1530 transitions. [2024-10-11 03:00:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:00:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 92 [2024-10-11 03:00:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:45,966 INFO L225 Difference]: With dead ends: 1096 [2024-10-11 03:00:45,966 INFO L226 Difference]: Without dead ends: 737 [2024-10-11 03:00:45,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:00:45,968 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 107 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:45,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 344 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-10-11 03:00:46,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 721. [2024-10-11 03:00:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 538 states have (on average 1.295539033457249) internal successors, (697), 584 states have internal predecessors, (697), 93 states have call successors, (93), 84 states have call predecessors, (93), 89 states have return successors, (159), 86 states have call predecessors, (159), 93 states have call successors, (159) [2024-10-11 03:00:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 949 transitions. [2024-10-11 03:00:46,006 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 949 transitions. Word has length 92 [2024-10-11 03:00:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:46,007 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 949 transitions. [2024-10-11 03:00:46,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 03:00:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 949 transitions. [2024-10-11 03:00:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:00:46,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:46,008 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:46,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:00:46,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:00:46,213 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:46,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:46,214 INFO L85 PathProgramCache]: Analyzing trace with hash -411826622, now seen corresponding path program 1 times [2024-10-11 03:00:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158557390] [2024-10-11 03:00:46,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:00:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:00:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 03:00:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:00:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:00:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 03:00:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:00:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 03:00:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158557390] [2024-10-11 03:00:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158557390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:46,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:46,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:00:46,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312421897] [2024-10-11 03:00:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:46,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:00:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:00:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:00:46,306 INFO L87 Difference]: Start difference. First operand 721 states and 949 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 03:00:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:46,478 INFO L93 Difference]: Finished difference Result 1017 states and 1318 transitions. [2024-10-11 03:00:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:00:46,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2024-10-11 03:00:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:46,480 INFO L225 Difference]: With dead ends: 1017 [2024-10-11 03:00:46,480 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:46,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:00:46,483 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 53 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:46,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 140 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:00:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:46,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2024-10-11 03:00:46,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:46,485 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:46,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 03:00:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:46,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:46,488 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:46,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:00:46,490 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:46,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:47,947 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:47,961 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))))) Eliminated clause: (or (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2024-10-11 03:00:47,970 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~waterLevel~0)|))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse1 .cse2))) (or (= ~pumpRunning~0 0) (not .cse2)) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1) (and .cse2 .cse3))) (or .cse0 (not .cse3)))) [2024-10-11 03:00:47,975 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-10-11 03:00:47,977 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (<= 1 |old(~waterLevel~0)|))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse1 .cse0 .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (= 0 ~systemActive~0)))) [2024-10-11 03:00:47,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:47 BoogieIcfgContainer [2024-10-11 03:00:47,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:47,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:47,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:47,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:47,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:41" (3/4) ... [2024-10-11 03:00:47,983 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:00:47,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:47,991 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-11 03:00:47,991 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:47,992 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:47,992 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:47,992 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:48,078 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:48,079 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:48,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:48,079 INFO L158 Benchmark]: Toolchain (without parser) took 7413.14ms. Allocated memory was 153.1MB in the beginning and 287.3MB in the end (delta: 134.2MB). Free memory was 97.6MB in the beginning and 108.7MB in the end (delta: -11.2MB). Peak memory consumption was 125.9MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,080 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:48,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.13ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 75.5MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.37ms. Allocated memory is still 153.1MB. Free memory was 75.5MB in the beginning and 122.4MB in the end (delta: -46.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,080 INFO L158 Benchmark]: Boogie Preprocessor took 72.10ms. Allocated memory was 153.1MB in the beginning and 239.1MB in the end (delta: 86.0MB). Free memory was 122.4MB in the beginning and 208.5MB in the end (delta: -86.1MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,080 INFO L158 Benchmark]: RCFGBuilder took 466.52ms. Allocated memory is still 239.1MB. Free memory was 208.5MB in the beginning and 183.4MB in the end (delta: 25.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,081 INFO L158 Benchmark]: TraceAbstraction took 6288.92ms. Allocated memory was 239.1MB in the beginning and 287.3MB in the end (delta: 48.2MB). Free memory was 182.3MB in the beginning and 117.1MB in the end (delta: 65.2MB). Peak memory consumption was 143.5MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,081 INFO L158 Benchmark]: Witness Printer took 98.60ms. Allocated memory is still 287.3MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 03:00:48,082 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.13ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 75.5MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.37ms. Allocated memory is still 153.1MB. Free memory was 75.5MB in the beginning and 122.4MB in the end (delta: -46.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.10ms. Allocated memory was 153.1MB in the beginning and 239.1MB in the end (delta: 86.0MB). Free memory was 122.4MB in the beginning and 208.5MB in the end (delta: -86.1MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * RCFGBuilder took 466.52ms. Allocated memory is still 239.1MB. Free memory was 208.5MB in the beginning and 183.4MB in the end (delta: 25.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6288.92ms. Allocated memory was 239.1MB in the beginning and 287.3MB in the end (delta: 48.2MB). Free memory was 182.3MB in the beginning and 117.1MB in the end (delta: 65.2MB). Peak memory consumption was 143.5MB. Max. memory is 16.1GB. * Witness Printer took 98.60ms. Allocated memory is still 287.3MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] - GenericResultAtLocation [Line: 583]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] * 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: 588]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1469 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1441 mSDsluCounter, 2184 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1423 mSDsCounter, 336 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1900 IncrementalHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 336 mSolverCounterUnsat, 761 mSDtfsCounter, 1900 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 294 SyntacticMatches, 9 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=721occurred in iteration=11, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 228 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 639 NumberOfCodeBlocks, 639 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 687 ConstructedInterpolants, 0 QuantifiedInterpolants, 1266 SizeOfPredicates, 3 NumberOfNonLiveVariables, 554 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 237/262 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: 849]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 714]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((1 == systemActive) && (1 <= waterLevel)) || ((2 <= waterLevel) && (0 != systemActive))) Ensures: ((pumpRunning == 0) && (((1 == systemActive) && (1 <= waterLevel)) || ((2 <= waterLevel) && (0 != systemActive)))) - ProcedureContractResult [Line: 629]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) - ProcedureContractResult [Line: 935]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) - ProcedureContractResult [Line: 605]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) || ((1 <= waterLevel) && (0 == systemActive))) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: (((((((1 == systemActive) && (\old(pumpRunning) == 0)) || ((1 == systemActive) && (2 <= \old(waterLevel)))) || ((\old(pumpRunning) == 0) && (0 == systemActive))) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 90]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 637]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) - ProcedureContractResult [Line: 923]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) Ensures: (((((pumpRunning == 0) || (\old(waterLevel) != 1)) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (2 <= waterLevel)) && ((((pumpRunning == 0) && (1 <= \old(waterLevel))) && (0 == systemActive)) || ((1 == systemActive) && (1 <= \old(waterLevel))))) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:48,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE