./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_spec3_product61.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_spec3_product61.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 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:59:47,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:59:47,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:59:47,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:59:47,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:59:47,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:59:47,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:59:47,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:59:47,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:59:47,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:59:47,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:59:47,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:59:47,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:59:47,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:59:47,742 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:59:47,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:59:47,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:59:47,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:59:47,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:59:47,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:59:47,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:59:47,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:59:47,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:59:47,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:59:47,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:59:47,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:59:47,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:59:47,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:59:47,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:59:47,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:59:47,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:59:47,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:59:47,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:59:47,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:59:47,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:59:47,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:59:47,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:59:47,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:59:47,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:59:47,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:59:47,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:59:47,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:59:47,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2024-10-11 02:59:48,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:59:48,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:59:48,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:59:48,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:59:48,063 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:59:48,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-10-11 02:59:49,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:59:49,814 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:59:49,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-10-11 02:59:49,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9011a4290/ed7d295b1c9c4229a1fc570c63afc164/FLAG4294b5a6a [2024-10-11 02:59:50,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9011a4290/ed7d295b1c9c4229a1fc570c63afc164 [2024-10-11 02:59:50,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:59:50,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:59:50,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:59:50,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:59:50,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:59:50,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a0f3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50, skipping insertion in model container [2024-10-11 02:59:50,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:59:50,522 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_spec3_product61.cil.c[7381,7394] [2024-10-11 02:59:50,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:50,619 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:59:50,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-10-11 02:59:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-10-11 02:59:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2024-10-11 02:59:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2024-10-11 02:59:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2024-10-11 02:59:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2024-10-11 02:59:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2024-10-11 02:59:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2024-10-11 02:59:50,665 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_spec3_product61.cil.c[7381,7394] [2024-10-11 02:59:50,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:50,721 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:59:50,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50 WrapperNode [2024-10-11 02:59:50,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:59:50,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:50,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:59:50,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:59:50,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,775 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 227 [2024-10-11 02:59:50,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:50,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:59:50,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:59:50,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:59:50,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,817 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 02:59:50,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:59:50,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:59:50,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:59:50,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:59:50,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (1/1) ... [2024-10-11 02:59:50,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:59:50,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:50,873 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 02:59:50,877 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 02:59:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:59:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 02:59:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 02:59:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-11 02:59:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-11 02:59:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:59:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:59:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:59:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:59:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 02:59:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 02:59:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 02:59:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 02:59:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 02:59:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 02:59:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:59:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 02:59:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 02:59:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:59:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:59:51,023 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:59:51,026 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:59:51,331 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-11 02:59:51,332 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:59:51,389 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:59:51,390 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 02:59:51,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:51 BoogieIcfgContainer [2024-10-11 02:59:51,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:59:51,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:59:51,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:59:51,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:59:51,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:59:50" (1/3) ... [2024-10-11 02:59:51,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6276e866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:51, skipping insertion in model container [2024-10-11 02:59:51,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:50" (2/3) ... [2024-10-11 02:59:51,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6276e866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:51, skipping insertion in model container [2024-10-11 02:59:51,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:51" (3/3) ... [2024-10-11 02:59:51,400 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2024-10-11 02:59:51,416 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:59:51,416 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:59:51,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:59:51,486 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;@6eb41b51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:59:51,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:59:51,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 02:59:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 02:59:51,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:51,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:51,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:51,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1735961070, now seen corresponding path program 1 times [2024-10-11 02:59:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:51,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405415856] [2024-10-11 02:59:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:51,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:51,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:59:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:51,698 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 02:59:51,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:51,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405415856] [2024-10-11 02:59:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405415856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:51,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:51,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 02:59:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496918967] [2024-10-11 02:59:51,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:51,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:59:51,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:59:51,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:59:51,729 INFO L87 Difference]: Start difference. First operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:51,820 INFO L93 Difference]: Finished difference Result 176 states and 251 transitions. [2024-10-11 02:59:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:59:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 02:59:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:51,836 INFO L225 Difference]: With dead ends: 176 [2024-10-11 02:59:51,837 INFO L226 Difference]: Without dead ends: 84 [2024-10-11 02:59:51,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 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 02:59:51,848 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:51,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:59:51,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-11 02:59:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-10-11 02:59:51,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 65 states have internal predecessors, (79), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-11 02:59:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2024-10-11 02:59:51,905 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 17 [2024-10-11 02:59:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:51,906 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2024-10-11 02:59:51,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:51,906 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2024-10-11 02:59:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 02:59:51,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:51,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:51,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:59:51,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:51,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:51,910 INFO L85 PathProgramCache]: Analyzing trace with hash 260613743, now seen corresponding path program 1 times [2024-10-11 02:59:51,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415070980] [2024-10-11 02:59:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:59:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,026 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 02:59:52,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415070980] [2024-10-11 02:59:52,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415070980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:52,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:52,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:52,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343955859] [2024-10-11 02:59:52,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:52,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:52,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:52,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:52,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:52,031 INFO L87 Difference]: Start difference. First operand 84 states and 114 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:52,096 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2024-10-11 02:59:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-11 02:59:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:52,098 INFO L225 Difference]: With dead ends: 141 [2024-10-11 02:59:52,099 INFO L226 Difference]: Without dead ends: 76 [2024-10-11 02:59:52,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 02:59:52,101 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 166 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 02:59:52,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 166 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-11 02:59:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-11 02:59:52,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 02:59:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2024-10-11 02:59:52,116 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 18 [2024-10-11 02:59:52,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:52,117 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2024-10-11 02:59:52,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:52,117 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2024-10-11 02:59:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 02:59:52,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:52,119 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 02:59:52,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:59:52,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:52,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:52,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1473546257, now seen corresponding path program 1 times [2024-10-11 02:59:52,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:52,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469927484] [2024-10-11 02:59:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:52,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,277 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 02:59:52,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469927484] [2024-10-11 02:59:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469927484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:52,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:52,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:52,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129976570] [2024-10-11 02:59:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:52,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:52,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:52,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:52,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:52,280 INFO L87 Difference]: Start difference. First operand 76 states and 103 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:52,340 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2024-10-11 02:59:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:52,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-11 02:59:52,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:52,343 INFO L225 Difference]: With dead ends: 150 [2024-10-11 02:59:52,345 INFO L226 Difference]: Without dead ends: 76 [2024-10-11 02:59:52,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:59:52,347 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:52,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-11 02:59:52,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-11 02:59:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.411764705882353) internal successors, (72), 60 states have internal predecessors, (72), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 02:59:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2024-10-11 02:59:52,365 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 21 [2024-10-11 02:59:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:52,365 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2024-10-11 02:59:52,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2024-10-11 02:59:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 02:59:52,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:52,367 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 02:59:52,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:59:52,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:52,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1105962929, now seen corresponding path program 1 times [2024-10-11 02:59:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:52,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330685595] [2024-10-11 02:59:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:52,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:59:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:52,554 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 02:59:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:52,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330685595] [2024-10-11 02:59:52,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330685595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:52,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:52,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:52,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071978569] [2024-10-11 02:59:52,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:52,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:52,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:52,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:52,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:52,559 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:59:52,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:52,936 INFO L93 Difference]: Finished difference Result 228 states and 307 transitions. [2024-10-11 02:59:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:59:52,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-11 02:59:52,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:52,939 INFO L225 Difference]: With dead ends: 228 [2024-10-11 02:59:52,939 INFO L226 Difference]: Without dead ends: 154 [2024-10-11 02:59:52,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:59:52,945 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 151 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:52,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 284 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:59:52,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-11 02:59:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2024-10-11 02:59:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.3495145631067962) internal successors, (139), 112 states have internal predecessors, (139), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-11 02:59:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 194 transitions. [2024-10-11 02:59:52,987 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 194 transitions. Word has length 34 [2024-10-11 02:59:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:52,990 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-10-11 02:59:52,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 02:59:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 194 transitions. [2024-10-11 02:59:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 02:59:52,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:52,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:52,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:59:52,993 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:52,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1638769303, now seen corresponding path program 1 times [2024-10-11 02:59:52,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:52,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466621425] [2024-10-11 02:59:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:52,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:59:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,170 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 02:59:53,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:53,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466621425] [2024-10-11 02:59:53,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466621425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:53,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:53,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:59:53,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428083123] [2024-10-11 02:59:53,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:59:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:53,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:59:53,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:53,175 INFO L87 Difference]: Start difference. First operand 148 states and 194 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:59:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:53,487 INFO L93 Difference]: Finished difference Result 382 states and 516 transitions. [2024-10-11 02:59:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:59:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-11 02:59:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:53,493 INFO L225 Difference]: With dead ends: 382 [2024-10-11 02:59:53,496 INFO L226 Difference]: Without dead ends: 236 [2024-10-11 02:59:53,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:59:53,499 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 134 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:53,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 221 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:59:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-11 02:59:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2024-10-11 02:59:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 164 states have (on average 1.3170731707317074) internal successors, (216), 176 states have internal predecessors, (216), 35 states have call successors, (35), 29 states have call predecessors, (35), 34 states have return successors, (54), 37 states have call predecessors, (54), 35 states have call successors, (54) [2024-10-11 02:59:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2024-10-11 02:59:53,554 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 41 [2024-10-11 02:59:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:53,556 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2024-10-11 02:59:53,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 02:59:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2024-10-11 02:59:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 02:59:53,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:53,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:53,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:59:53,562 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:53,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:53,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2134046461, now seen corresponding path program 1 times [2024-10-11 02:59:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:53,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136666638] [2024-10-11 02:59:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:53,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:59:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:53,692 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 02:59:53,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:53,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136666638] [2024-10-11 02:59:53,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136666638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:53,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:53,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:53,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106289437] [2024-10-11 02:59:53,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:53,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:53,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:53,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:53,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:53,697 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:54,232 INFO L93 Difference]: Finished difference Result 586 states and 825 transitions. [2024-10-11 02:59:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 02:59:54,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-11 02:59:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:54,241 INFO L225 Difference]: With dead ends: 586 [2024-10-11 02:59:54,241 INFO L226 Difference]: Without dead ends: 440 [2024-10-11 02:59:54,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 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 02:59:54,244 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 299 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:54,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 171 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 02:59:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-11 02:59:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 412. [2024-10-11 02:59:54,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 287 states have (on average 1.289198606271777) internal successors, (370), 311 states have internal predecessors, (370), 64 states have call successors, (64), 44 states have call predecessors, (64), 60 states have return successors, (123), 68 states have call predecessors, (123), 64 states have call successors, (123) [2024-10-11 02:59:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 557 transitions. [2024-10-11 02:59:54,334 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 557 transitions. Word has length 45 [2024-10-11 02:59:54,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:54,335 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 557 transitions. [2024-10-11 02:59:54,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 557 transitions. [2024-10-11 02:59:54,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 02:59:54,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:54,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:54,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:59:54,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:54,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1915191743, now seen corresponding path program 1 times [2024-10-11 02:59:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:54,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812759891] [2024-10-11 02:59:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:54,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:59:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,448 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 02:59:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812759891] [2024-10-11 02:59:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812759891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:54,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810871997] [2024-10-11 02:59:54,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:54,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:54,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:54,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:54,452 INFO L87 Difference]: Start difference. First operand 412 states and 557 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:54,783 INFO L93 Difference]: Finished difference Result 764 states and 1052 transitions. [2024-10-11 02:59:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:59:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-11 02:59:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:54,788 INFO L225 Difference]: With dead ends: 764 [2024-10-11 02:59:54,788 INFO L226 Difference]: Without dead ends: 436 [2024-10-11 02:59:54,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:59:54,791 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 129 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:54,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 196 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:59:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-11 02:59:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 412. [2024-10-11 02:59:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 287 states have (on average 1.2857142857142858) internal successors, (369), 311 states have internal predecessors, (369), 64 states have call successors, (64), 44 states have call predecessors, (64), 60 states have return successors, (123), 68 states have call predecessors, (123), 64 states have call successors, (123) [2024-10-11 02:59:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 556 transitions. [2024-10-11 02:59:54,847 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 556 transitions. Word has length 45 [2024-10-11 02:59:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:54,848 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 556 transitions. [2024-10-11 02:59:54,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 556 transitions. [2024-10-11 02:59:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 02:59:54,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:54,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:54,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:59:54,855 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:54,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1562127103, now seen corresponding path program 1 times [2024-10-11 02:59:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:54,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766718415] [2024-10-11 02:59:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:59:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:54,951 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 02:59:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:54,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766718415] [2024-10-11 02:59:54,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766718415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:54,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:54,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:54,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121179827] [2024-10-11 02:59:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:54,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:54,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:54,954 INFO L87 Difference]: Start difference. First operand 412 states and 556 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:55,273 INFO L93 Difference]: Finished difference Result 847 states and 1172 transitions. [2024-10-11 02:59:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:59:55,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-11 02:59:55,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:55,277 INFO L225 Difference]: With dead ends: 847 [2024-10-11 02:59:55,277 INFO L226 Difference]: Without dead ends: 437 [2024-10-11 02:59:55,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:59:55,280 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 132 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:55,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 181 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:59:55,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-10-11 02:59:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 413. [2024-10-11 02:59:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 290 states have (on average 1.2793103448275862) internal successors, (371), 313 states have internal predecessors, (371), 63 states have call successors, (63), 43 states have call predecessors, (63), 59 states have return successors, (122), 67 states have call predecessors, (122), 63 states have call successors, (122) [2024-10-11 02:59:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 556 transitions. [2024-10-11 02:59:55,326 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 556 transitions. Word has length 45 [2024-10-11 02:59:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:55,326 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 556 transitions. [2024-10-11 02:59:55,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 556 transitions. [2024-10-11 02:59:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 02:59:55,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:55,327 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:55,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:59:55,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:55,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:55,328 INFO L85 PathProgramCache]: Analyzing trace with hash 460109926, now seen corresponding path program 1 times [2024-10-11 02:59:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:55,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680446889] [2024-10-11 02:59:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:59:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:55,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680446889] [2024-10-11 02:59:55,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680446889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:55,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727142309] [2024-10-11 02:59:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:55,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:55,440 INFO L87 Difference]: Start difference. First operand 413 states and 556 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:55,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:55,815 INFO L93 Difference]: Finished difference Result 808 states and 1087 transitions. [2024-10-11 02:59:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:59:55,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-10-11 02:59:55,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:55,819 INFO L225 Difference]: With dead ends: 808 [2024-10-11 02:59:55,819 INFO L226 Difference]: Without dead ends: 397 [2024-10-11 02:59:55,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:59:55,821 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 204 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:55,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 227 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:59:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-11 02:59:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2024-10-11 02:59:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 278 states have (on average 1.2410071942446044) internal successors, (345), 299 states have internal predecessors, (345), 59 states have call successors, (59), 43 states have call predecessors, (59), 57 states have return successors, (86), 63 states have call predecessors, (86), 59 states have call successors, (86) [2024-10-11 02:59:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 490 transitions. [2024-10-11 02:59:55,850 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 490 transitions. Word has length 52 [2024-10-11 02:59:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:55,850 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 490 transitions. [2024-10-11 02:59:55,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 490 transitions. [2024-10-11 02:59:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 02:59:55,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:55,852 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:55,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:59:55,853 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:55,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash -115226343, now seen corresponding path program 1 times [2024-10-11 02:59:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:55,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630694215] [2024-10-11 02:59:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:55,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:55,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:59:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 02:59:56,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:56,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630694215] [2024-10-11 02:59:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630694215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:56,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069476155] [2024-10-11 02:59:56,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:56,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:56,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:56,160 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 02:59:56,166 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 02:59:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:56,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 02:59:56,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:56,424 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:59:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069476155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:59:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 02:59:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168137325] [2024-10-11 02:59:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:56,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:59:56,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:59:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:59:56,430 INFO L87 Difference]: Start difference. First operand 395 states and 490 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:56,686 INFO L93 Difference]: Finished difference Result 1165 states and 1470 transitions. [2024-10-11 02:59:56,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:59:56,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-10-11 02:59:56,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:56,692 INFO L225 Difference]: With dead ends: 1165 [2024-10-11 02:59:56,693 INFO L226 Difference]: Without dead ends: 772 [2024-10-11 02:59:56,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:59:56,695 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 61 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:56,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 449 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:59:56,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-10-11 02:59:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 770. [2024-10-11 02:59:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 541 states have (on average 1.2255083179297597) internal successors, (663), 579 states have internal predecessors, (663), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (174), 123 states have call predecessors, (174), 117 states have call successors, (174) [2024-10-11 02:59:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 954 transitions. [2024-10-11 02:59:56,774 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 954 transitions. Word has length 52 [2024-10-11 02:59:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:56,775 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 954 transitions. [2024-10-11 02:59:56,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 954 transitions. [2024-10-11 02:59:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 02:59:56,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:56,777 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:56,796 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 02:59:56,978 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 02:59:56,978 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:56,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1776931773, now seen corresponding path program 1 times [2024-10-11 02:59:56,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:56,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267728600] [2024-10-11 02:59:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:56,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:59:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:59:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:59:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 02:59:57,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:57,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267728600] [2024-10-11 02:59:57,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267728600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:57,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:57,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:59:57,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013524576] [2024-10-11 02:59:57,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:57,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:59:57,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:57,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:59:57,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:59:57,121 INFO L87 Difference]: Start difference. First operand 770 states and 954 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 02:59:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:58,313 INFO L93 Difference]: Finished difference Result 1522 states and 1902 transitions. [2024-10-11 02:59:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 02:59:58,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2024-10-11 02:59:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:58,320 INFO L225 Difference]: With dead ends: 1522 [2024-10-11 02:59:58,320 INFO L226 Difference]: Without dead ends: 754 [2024-10-11 02:59:58,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=285, Invalid=771, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 02:59:58,324 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 476 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:58,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 205 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 02:59:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-11 02:59:58,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-11 02:59:58,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 525 states have (on average 1.1866666666666668) internal successors, (623), 563 states have internal predecessors, (623), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (168), 123 states have call predecessors, (168), 117 states have call successors, (168) [2024-10-11 02:59:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 908 transitions. [2024-10-11 02:59:58,380 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 908 transitions. Word has length 56 [2024-10-11 02:59:58,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:58,380 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 908 transitions. [2024-10-11 02:59:58,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 02:59:58,381 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 908 transitions. [2024-10-11 02:59:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 02:59:58,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:58,383 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:58,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 02:59:58,383 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:58,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:58,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1762287868, now seen corresponding path program 1 times [2024-10-11 02:59:58,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:58,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828477284] [2024-10-11 02:59:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:59:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:59:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:59:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:59:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:59:58,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828477284] [2024-10-11 02:59:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828477284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:58,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503658346] [2024-10-11 02:59:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:58,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:58,845 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 02:59:58,846 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 02:59:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:58,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 02:59:58,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 02:59:59,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:59:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 02:59:59,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503658346] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:59:59,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:59:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7, 8] total 22 [2024-10-11 02:59:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161157794] [2024-10-11 02:59:59,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:59:59,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 02:59:59,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:59,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 02:59:59,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-10-11 02:59:59,375 INFO L87 Difference]: Start difference. First operand 754 states and 908 transitions. Second operand has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-11 03:00:01,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:01,440 INFO L93 Difference]: Finished difference Result 1573 states and 1958 transitions. [2024-10-11 03:00:01,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-11 03:00:01,441 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2024-10-11 03:00:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:01,443 INFO L225 Difference]: With dead ends: 1573 [2024-10-11 03:00:01,443 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:01,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1556, Invalid=5584, Unknown=0, NotChecked=0, Total=7140 [2024-10-11 03:00:01,451 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1511 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:01,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 445 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 03:00:01,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:01,452 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 03:00:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:01,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2024-10-11 03:00:01,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:01,454 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:01,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-11 03:00:01,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:01,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:01,457 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:01,502 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 03:00:01,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:00:01,661 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:01,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:06,200 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:06,221 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 1)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) (= ~pumpRunning~0 1)) Eliminated clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) (= ~pumpRunning~0 1)) [2024-10-11 03:00:06,239 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse4 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= |old(~methaneLevelCritical~0)| 1))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse4 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse5))) (or (not .cse4) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not .cse1)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse4 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= |old(~methaneLevelCritical~0)| 1))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse4 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse5))) (or (not .cse4) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not .cse1))))) [2024-10-11 03:00:06,245 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:00:06,261 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse0 .cse5) (and .cse4 .cse0 .cse6 .cse5) (and .cse3 .cse4 .cse2 .cse5) (and .cse4 .cse2 .cse6 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse0 .cse5) (and .cse4 .cse0 .cse6 .cse5) (and .cse3 .cse4 .cse2 .cse5) (and .cse4 .cse2 .cse6 .cse5)))))) [2024-10-11 03:00:06,270 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:00:06,278 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5)))))) [2024-10-11 03:00:06,284 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:00:06,291 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= 1 ~systemActive~0))) (and (or (and (<= ~waterLevel~0 1) .cse0) (not .cse1) (not .cse2)) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse4 (<= |old(~waterLevel~0)| 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (or (and .cse2 .cse1) (and .cse3 .cse0 .cse4 .cse1) (and .cse5 .cse0 .cse2 .cse4) (and .cse5 .cse3 .cse0 (<= |old(~waterLevel~0)| 1)))))) Eliminated clause: (let ((.cse6 (<= ~waterLevel~0 1)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 1))) (and (let ((.cse4 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1) (and .cse5 .cse3 .cse0 .cse4) (and .cse5 .cse2 .cse6 .cse3))) (or (and .cse6 .cse3) (not .cse1) (not .cse0)))) [2024-10-11 03:00:06,302 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5)))))) [2024-10-11 03:00:06,308 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:00:06,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:06 BoogieIcfgContainer [2024-10-11 03:00:06,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:06,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:06,318 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:06,318 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:06,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:51" (3/4) ... [2024-10-11 03:00:06,324 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:06,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:06,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:00:06,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:06,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:00:06,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-11 03:00:06,341 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-11 03:00:06,341 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:06,341 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:06,342 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:06,343 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:06,462 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:06,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:06,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:06,463 INFO L158 Benchmark]: Toolchain (without parser) took 16296.77ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 96.8MB in the beginning and 150.7MB in the end (delta: -53.9MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,464 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:06,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.79ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 118.3MB in the end (delta: -21.6MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.55ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,464 INFO L158 Benchmark]: Boogie Preprocessor took 56.23ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 113.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,465 INFO L158 Benchmark]: RCFGBuilder took 556.11ms. Allocated memory is still 165.7MB. Free memory was 113.2MB in the beginning and 87.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,465 INFO L158 Benchmark]: TraceAbstraction took 14924.64ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 86.8MB in the beginning and 158.1MB in the end (delta: -71.2MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,465 INFO L158 Benchmark]: Witness Printer took 144.77ms. Allocated memory is still 297.8MB. Free memory was 158.1MB in the beginning and 150.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:00:06,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.79ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 118.3MB in the end (delta: -21.6MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.55ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.23ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 113.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 556.11ms. Allocated memory is still 165.7MB. Free memory was 113.2MB in the beginning and 87.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14924.64ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 86.8MB in the beginning and 158.1MB in the end (delta: -71.2MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. * Witness Printer took 144.77ms. Allocated memory is still 297.8MB. Free memory was 158.1MB in the beginning and 150.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 477]: 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 11 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3237 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3199 mSDsluCounter, 2737 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1949 mSDsCounter, 1433 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4170 IncrementalHoareTripleChecker+Invalid, 5603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1433 mSolverCounterUnsat, 788 mSDtfsCounter, 4170 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 356 SyntacticMatches, 6 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=10, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 88 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 721 ConstructedInterpolants, 0 QuantifiedInterpolants, 1559 SizeOfPredicates, 2 NumberOfNonLiveVariables, 508 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 74/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 266]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) || (((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive))) && (pumpRunning == 1)) Ensures: ((pumpRunning == 0) && (((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1)))) - ProcedureContractResult [Line: 156]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (methaneLevelCritical == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (methaneLevelCritical == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) - ProcedureContractResult [Line: 396]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: ((((methaneLevelCritical == 0) || (\old(methaneLevelCritical) != 1)) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical == 1))) && (((((((pumpRunning == 0) && (\old(methaneLevelCritical) == 1)) && (1 == systemActive)) && (waterLevel <= 2)) || ((((\old(methaneLevelCritical) == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((\old(methaneLevelCritical) == 1) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)))) - ProcedureContractResult [Line: 408]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((methaneLevelCritical != 1) || (\result == 1)) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)))) && ((methaneLevelCritical != 0) || (\result == 0))) - ProcedureContractResult [Line: 483]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 132]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((waterLevel <= 1) && (waterLevel <= \old(waterLevel))) && (pumpRunning == 1)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (waterLevel <= \old(waterLevel)))) && ((((((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel)) || (\old(pumpRunning) != 0)) || (methaneLevelCritical != 0)) || ((\old(waterLevel) == waterLevel) && (pumpRunning == 1)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical != 1))) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (\old(waterLevel) <= 2))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2)))) - ProcedureContractResult [Line: 164]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical != 1)) && (((methaneLevelCritical != 0) || ((pumpRunning == 0) && (waterLevel <= 1))) || (pumpRunning == 1))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && (((((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) - ProcedureContractResult [Line: 384]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((methaneLevelCritical == 1) && (pumpRunning == 1)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) && ((((waterLevel <= 1) && (1 == systemActive)) || (pumpRunning != 1)) || (methaneLevelCritical != 1))) Ensures: (((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2)) && (pumpRunning == 1)) || ((((1 == systemActive) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) <= 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && (waterLevel <= 2)) - ProcedureContractResult [Line: 190]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical != 1)) && (((methaneLevelCritical != 0) || (waterLevel < 2)) || (pumpRunning == 1))) && (((((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) && ((pumpRunning == 0) || (pumpRunning == 1))) - ProcedureContractResult [Line: 274]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((\result == 1) || (methaneLevelCritical != 1)) && (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)))) && ((\result == 0) || (methaneLevelCritical != 0))) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:06,494 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