./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_spec1_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:04:48,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:04:48,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:04:48,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:04:48,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:04:48,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:04:48,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:04:48,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:04:48,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:04:48,562 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:04:48,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:04:48,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:04:48,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:04:48,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:04:48,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:04:48,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:04:48,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:04:48,565 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:04:48,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:04:48,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:04:48,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:04:48,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:04:48,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:04:48,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:04:48,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:04:48,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:04:48,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:04:48,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:04:48,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:04:48,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:04:48,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:04:48,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:04:48,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:04:48,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:04:48,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:04:48,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:04:48,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:04:48,570 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 [2024-11-19 22:04:48,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:04:48,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:04:48,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:04:48,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:04:48,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:04:48,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2024-11-19 22:04:49,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:04:50,122 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:04:50,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2024-11-19 22:04:50,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2ce3e17/dafcc4bd4be14b04acc8179b5be73507/FLAG02563523f [2024-11-19 22:04:50,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2ce3e17/dafcc4bd4be14b04acc8179b5be73507 [2024-11-19 22:04:50,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:04:50,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:04:50,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:04:50,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:04:50,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:04:50,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e97ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50, skipping insertion in model container [2024-11-19 22:04:50,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:04:50,791 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2024-11-19 22:04:50,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:04:50,814 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:04:50,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-19 22:04:50,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2024-11-19 22:04:50,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2024-11-19 22:04:50,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [618] [2024-11-19 22:04:50,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [646] [2024-11-19 22:04:50,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [868] [2024-11-19 22:04:50,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [877] [2024-11-19 22:04:50,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [946] [2024-11-19 22:04:50,859 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2024-11-19 22:04:50,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:04:50,877 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:04:50,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50 WrapperNode [2024-11-19 22:04:50,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:04:50,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:04:50,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:04:50,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:04:50,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,910 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 191 [2024-11-19 22:04:50,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:04:50,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:04:50,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:04:50,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:04:50,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,932 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 22:04:50,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:04:50,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:04:50,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:04:50,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:04:50,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (1/1) ... [2024-11-19 22:04:50,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:04:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:04:50,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 22:04:50,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 22:04:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:04:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:04:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:04:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-19 22:04:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-19 22:04:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-19 22:04:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-19 22:04:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:04:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:04:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:04:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:04:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:04:51,074 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:04:51,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:04:51,314 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-19 22:04:51,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:04:51,327 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:04:51,327 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:04:51,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:51 BoogieIcfgContainer [2024-11-19 22:04:51,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:04:51,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:04:51,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:04:51,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:04:51,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:04:50" (1/3) ... [2024-11-19 22:04:51,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677d8eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:04:51, skipping insertion in model container [2024-11-19 22:04:51,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:50" (2/3) ... [2024-11-19 22:04:51,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677d8eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:04:51, skipping insertion in model container [2024-11-19 22:04:51,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:51" (3/3) ... [2024-11-19 22:04:51,348 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2024-11-19 22:04:51,361 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:04:51,361 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:04:51,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:04:51,419 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;@6704fda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:04:51,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:04:51,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 74 states have (on average 1.364864864864865) internal successors, (101), 83 states have internal predecessors, (101), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-19 22:04:51,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 22:04:51,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:51,431 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] [2024-11-19 22:04:51,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:51,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1258110476, now seen corresponding path program 1 times [2024-11-19 22:04:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:51,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942256461] [2024-11-19 22:04:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:51,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 22:04:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:04:51,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:51,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942256461] [2024-11-19 22:04:51,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942256461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:51,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:51,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:04:51,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803860459] [2024-11-19 22:04:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:51,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:04:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:51,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:04:51,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:04:51,632 INFO L87 Difference]: Start difference. First operand has 101 states, 74 states have (on average 1.364864864864865) internal successors, (101), 83 states have internal predecessors, (101), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-19 22:04:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:51,657 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2024-11-19 22:04:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:04:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2024-11-19 22:04:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:51,665 INFO L225 Difference]: With dead ends: 194 [2024-11-19 22:04:51,665 INFO L226 Difference]: Without dead ends: 92 [2024-11-19 22:04:51,668 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 [2024-11-19 22:04:51,673 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:51,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:04:51,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-19 22:04:51,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-19 22:04:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 75 states have internal predecessors, (87), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 22:04:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2024-11-19 22:04:51,720 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 23 [2024-11-19 22:04:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:51,721 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2024-11-19 22:04:51,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-19 22:04:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2024-11-19 22:04:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 22:04:51,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:51,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:51,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:04:51,723 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:51,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1705390326, now seen corresponding path program 1 times [2024-11-19 22:04:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708851302] [2024-11-19 22:04:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 22:04:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:04:51,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:51,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708851302] [2024-11-19 22:04:51,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708851302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:04:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732037054] [2024-11-19 22:04:51,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:51,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:04:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:04:51,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:04:51,833 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-19 22:04:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:51,855 INFO L93 Difference]: Finished difference Result 145 states and 185 transitions. [2024-11-19 22:04:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:04:51,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2024-11-19 22:04:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:51,857 INFO L225 Difference]: With dead ends: 145 [2024-11-19 22:04:51,857 INFO L226 Difference]: Without dead ends: 83 [2024-11-19 22:04:51,858 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 [2024-11-19 22:04:51,859 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 17 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:51,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:04:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-19 22:04:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-19 22:04:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 69 states have internal predecessors, (80), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 22:04:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2024-11-19 22:04:51,868 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 24 [2024-11-19 22:04:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:51,868 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2024-11-19 22:04:51,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-19 22:04:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2024-11-19 22:04:51,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 22:04:51,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:51,870 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] [2024-11-19 22:04:51,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:04:51,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:51,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash 581187755, now seen corresponding path program 1 times [2024-11-19 22:04:51,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:51,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736229271] [2024-11-19 22:04:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:04:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:04:51,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:51,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736229271] [2024-11-19 22:04:51,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736229271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:51,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:51,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:04:51,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179427020] [2024-11-19 22:04:51,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:51,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:04:51,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:51,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:04:51,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:04:51,942 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-19 22:04:51,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:51,966 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2024-11-19 22:04:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:04:51,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2024-11-19 22:04:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:51,969 INFO L225 Difference]: With dead ends: 233 [2024-11-19 22:04:51,969 INFO L226 Difference]: Without dead ends: 157 [2024-11-19 22:04:51,969 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 [2024-11-19 22:04:51,970 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 98 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:51,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:04:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-19 22:04:51,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-19 22:04:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 126 states have internal predecessors, (148), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 22:04:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2024-11-19 22:04:51,995 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 29 [2024-11-19 22:04:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:51,995 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2024-11-19 22:04:51,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-19 22:04:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2024-11-19 22:04:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 22:04:51,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:51,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:51,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:04:51,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:51,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1535507548, now seen corresponding path program 1 times [2024-11-19 22:04:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:51,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138797630] [2024-11-19 22:04:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:04:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:04:52,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:52,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138797630] [2024-11-19 22:04:52,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138797630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:52,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:52,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:04:52,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769418704] [2024-11-19 22:04:52,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:52,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:04:52,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:52,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:04:52,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:04:52,137 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 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) [2024-11-19 22:04:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:52,213 INFO L93 Difference]: Finished difference Result 396 states and 523 transitions. [2024-11-19 22:04:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:04:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 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 32 [2024-11-19 22:04:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:52,217 INFO L225 Difference]: With dead ends: 396 [2024-11-19 22:04:52,217 INFO L226 Difference]: Without dead ends: 249 [2024-11-19 22:04:52,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:04:52,220 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 60 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:52,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 364 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:04:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-19 22:04:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-11-19 22:04:52,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 181 states have (on average 1.287292817679558) internal successors, (233), 198 states have internal predecessors, (233), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-11-19 22:04:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 313 transitions. [2024-11-19 22:04:52,246 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 313 transitions. Word has length 32 [2024-11-19 22:04:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:52,246 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 313 transitions. [2024-11-19 22:04:52,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 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) [2024-11-19 22:04:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 313 transitions. [2024-11-19 22:04:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:04:52,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:52,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:52,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:04:52,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:52,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash -900743898, now seen corresponding path program 1 times [2024-11-19 22:04:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:52,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068768719] [2024-11-19 22:04:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:04:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-19 22:04:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:04:52,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:52,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068768719] [2024-11-19 22:04:52,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068768719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:52,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:52,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:04:52,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061533318] [2024-11-19 22:04:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:04:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:04:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:04:52,376 INFO L87 Difference]: Start difference. First operand 248 states and 313 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:04:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:52,593 INFO L93 Difference]: Finished difference Result 541 states and 698 transitions. [2024-11-19 22:04:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:04:52,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-19 22:04:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:52,595 INFO L225 Difference]: With dead ends: 541 [2024-11-19 22:04:52,595 INFO L226 Difference]: Without dead ends: 300 [2024-11-19 22:04:52,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:04:52,597 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 55 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:52,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 335 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:04:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-19 22:04:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 298. [2024-11-19 22:04:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 221 states have (on average 1.262443438914027) internal successors, (279), 238 states have internal predecessors, (279), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-11-19 22:04:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 373 transitions. [2024-11-19 22:04:52,621 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 373 transitions. Word has length 55 [2024-11-19 22:04:52,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:52,621 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 373 transitions. [2024-11-19 22:04:52,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:04:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 373 transitions. [2024-11-19 22:04:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:04:52,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:52,623 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:52,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:04:52,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:52,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:52,624 INFO L85 PathProgramCache]: Analyzing trace with hash -878111644, now seen corresponding path program 1 times [2024-11-19 22:04:52,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:52,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579193654] [2024-11-19 22:04:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:52,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:04:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-19 22:04:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:04:52,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:52,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579193654] [2024-11-19 22:04:52,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579193654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:52,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:52,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:04:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923536323] [2024-11-19 22:04:52,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:04:52,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:04:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:04:52,726 INFO L87 Difference]: Start difference. First operand 298 states and 373 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:04:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:52,844 INFO L93 Difference]: Finished difference Result 595 states and 762 transitions. [2024-11-19 22:04:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:04:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-19 22:04:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:52,848 INFO L225 Difference]: With dead ends: 595 [2024-11-19 22:04:52,849 INFO L226 Difference]: Without dead ends: 304 [2024-11-19 22:04:52,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:04:52,850 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 54 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:52,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 263 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:04:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-19 22:04:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302. [2024-11-19 22:04:52,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 225 states have (on average 1.2577777777777779) internal successors, (283), 242 states have internal predecessors, (283), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-11-19 22:04:52,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 377 transitions. [2024-11-19 22:04:52,883 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 377 transitions. Word has length 55 [2024-11-19 22:04:52,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:52,883 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 377 transitions. [2024-11-19 22:04:52,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 22:04:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 377 transitions. [2024-11-19 22:04:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:04:52,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:52,887 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:52,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:04:52,890 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:52,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash -603352030, now seen corresponding path program 1 times [2024-11-19 22:04:52,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:52,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946400857] [2024-11-19 22:04:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:52,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:04:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-19 22:04:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:04:52,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:52,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946400857] [2024-11-19 22:04:52,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946400857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:52,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:52,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:04:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534482858] [2024-11-19 22:04:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:52,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:04:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:04:52,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:04:52,987 INFO L87 Difference]: Start difference. First operand 302 states and 377 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 22:04:53,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:53,201 INFO L93 Difference]: Finished difference Result 848 states and 1101 transitions. [2024-11-19 22:04:53,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:04:53,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-19 22:04:53,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:53,205 INFO L225 Difference]: With dead ends: 848 [2024-11-19 22:04:53,205 INFO L226 Difference]: Without dead ends: 553 [2024-11-19 22:04:53,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:04:53,207 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 223 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:53,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 287 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:04:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-19 22:04:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 546. [2024-11-19 22:04:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 409 states have (on average 1.2371638141809291) internal successors, (506), 435 states have internal predecessors, (506), 71 states have call successors, (71), 63 states have call predecessors, (71), 65 states have return successors, (109), 70 states have call predecessors, (109), 71 states have call successors, (109) [2024-11-19 22:04:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 686 transitions. [2024-11-19 22:04:53,244 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 686 transitions. Word has length 55 [2024-11-19 22:04:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:53,244 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 686 transitions. [2024-11-19 22:04:53,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 22:04:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 686 transitions. [2024-11-19 22:04:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 22:04:53,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:53,247 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:53,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:04:53,247 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1816985916, now seen corresponding path program 1 times [2024-11-19 22:04:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360651296] [2024-11-19 22:04:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:04:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:04:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 22:04:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 22:04:53,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360651296] [2024-11-19 22:04:53,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360651296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:53,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:53,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:04:53,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079749483] [2024-11-19 22:04:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:53,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:04:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:53,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:04:53,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:04:53,424 INFO L87 Difference]: Start difference. First operand 546 states and 686 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:04:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:53,838 INFO L93 Difference]: Finished difference Result 1828 states and 2388 transitions. [2024-11-19 22:04:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 22:04:53,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-19 22:04:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:53,844 INFO L225 Difference]: With dead ends: 1828 [2024-11-19 22:04:53,844 INFO L226 Difference]: Without dead ends: 1289 [2024-11-19 22:04:53,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-19 22:04:53,846 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 306 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:53,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 350 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:04:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-19 22:04:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1247. [2024-11-19 22:04:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 922 states have (on average 1.2060737527114966) internal successors, (1112), 989 states have internal predecessors, (1112), 174 states have call successors, (174), 126 states have call predecessors, (174), 150 states have return successors, (300), 176 states have call predecessors, (300), 174 states have call successors, (300) [2024-11-19 22:04:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1586 transitions. [2024-11-19 22:04:53,912 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1586 transitions. Word has length 59 [2024-11-19 22:04:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:53,912 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1586 transitions. [2024-11-19 22:04:53,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:04:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1586 transitions. [2024-11-19 22:04:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-19 22:04:53,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:53,914 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:53,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:04:53,914 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:53,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash -67517000, now seen corresponding path program 1 times [2024-11-19 22:04:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648011324] [2024-11-19 22:04:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:04:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:53,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 22:04:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-19 22:04:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 22:04:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 22:04:54,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:54,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648011324] [2024-11-19 22:04:54,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648011324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:04:54,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915010224] [2024-11-19 22:04:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:54,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:04:54,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:04:54,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:04:54,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:04:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 22:04:54,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:04:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:04:54,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:04:54,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915010224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:54,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:04:54,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2024-11-19 22:04:54,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540596255] [2024-11-19 22:04:54,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:54,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:04:54,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:04:54,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-19 22:04:54,332 INFO L87 Difference]: Start difference. First operand 1247 states and 1586 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 22:04:54,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:54,479 INFO L93 Difference]: Finished difference Result 2421 states and 3091 transitions. [2024-11-19 22:04:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:04:54,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-19 22:04:54,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:54,484 INFO L225 Difference]: With dead ends: 2421 [2024-11-19 22:04:54,485 INFO L226 Difference]: Without dead ends: 1181 [2024-11-19 22:04:54,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-19 22:04:54,488 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 65 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:54,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 701 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:04:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-19 22:04:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2024-11-19 22:04:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 870 states have (on average 1.193103448275862) internal successors, (1038), 935 states have internal predecessors, (1038), 168 states have call successors, (168), 122 states have call predecessors, (168), 142 states have return successors, (262), 166 states have call predecessors, (262), 168 states have call successors, (262) [2024-11-19 22:04:54,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1468 transitions. [2024-11-19 22:04:54,541 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1468 transitions. Word has length 63 [2024-11-19 22:04:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:54,541 INFO L471 AbstractCegarLoop]: Abstraction has 1181 states and 1468 transitions. [2024-11-19 22:04:54,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 22:04:54,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1468 transitions. [2024-11-19 22:04:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 22:04:54,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:54,543 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:54,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:04:54,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:04:54,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:54,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1120995157, now seen corresponding path program 1 times [2024-11-19 22:04:54,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:54,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674927986] [2024-11-19 22:04:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:04:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:04:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:04:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 22:04:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 22:04:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:04:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:04:54,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:54,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674927986] [2024-11-19 22:04:54,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674927986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:54,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:04:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:04:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194827162] [2024-11-19 22:04:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:04:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:54,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:04:54,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:04:54,862 INFO L87 Difference]: Start difference. First operand 1181 states and 1468 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 22:04:55,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:55,262 INFO L93 Difference]: Finished difference Result 2006 states and 2483 transitions. [2024-11-19 22:04:55,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:04:55,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-11-19 22:04:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:55,268 INFO L225 Difference]: With dead ends: 2006 [2024-11-19 22:04:55,268 INFO L226 Difference]: Without dead ends: 832 [2024-11-19 22:04:55,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-19 22:04:55,271 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 431 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:55,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 205 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:04:55,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-19 22:04:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 800. [2024-11-19 22:04:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 594 states have (on average 1.1835016835016836) internal successors, (703), 640 states have internal predecessors, (703), 109 states have call successors, (109), 86 states have call predecessors, (109), 96 states have return successors, (158), 107 states have call predecessors, (158), 109 states have call successors, (158) [2024-11-19 22:04:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 970 transitions. [2024-11-19 22:04:55,312 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 970 transitions. Word has length 90 [2024-11-19 22:04:55,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:55,313 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 970 transitions. [2024-11-19 22:04:55,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 22:04:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 970 transitions. [2024-11-19 22:04:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 22:04:55,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:04:55,314 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:04:55,315 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:04:55,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:04:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash -849910869, now seen corresponding path program 1 times [2024-11-19 22:04:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:04:55,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413060832] [2024-11-19 22:04:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:04:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:04:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:04:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:04:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:04:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 22:04:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 22:04:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 22:04:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 22:04:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:04:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:04:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:04:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:04:55,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:04:55,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413060832] [2024-11-19 22:04:55,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413060832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:04:55,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924734899] [2024-11-19 22:04:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:04:55,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:04:55,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:04:55,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:04:55,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:04:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:04:55,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 22:04:55,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:04:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:04:55,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:04:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924734899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:04:55,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:04:55,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-11-19 22:04:55,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864626633] [2024-11-19 22:04:55,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:04:55,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:04:55,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:04:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:04:55,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:04:55,726 INFO L87 Difference]: Start difference. First operand 800 states and 970 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 22:04:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:04:55,850 INFO L93 Difference]: Finished difference Result 1376 states and 1691 transitions. [2024-11-19 22:04:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:04:55,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-19 22:04:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:04:55,852 INFO L225 Difference]: With dead ends: 1376 [2024-11-19 22:04:55,852 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 22:04:55,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-19 22:04:55,855 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 65 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:04:55,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1097 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:04:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 22:04:55,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 22:04:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:04:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 22:04:55,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-11-19 22:04:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:04:55,857 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 22:04:55,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 22:04:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 22:04:55,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 22:04:55,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:04:55,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 22:04:56,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 22:04:56,063 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:04:56,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 22:04:58,578 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:04:58,591 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse2 .cse1) (and .cse0 .cse3 .cse4)))) Eliminated clause: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse2 .cse1) (and .cse0 .cse3 .cse4))) [2024-11-19 22:04:58,602 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (and (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse3 (= |old(~methaneLevelCritical~0)| 0)) (.cse4 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse0 .cse1 .cse4) (and .cse3 .cse4))) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) Eliminated clause: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3) (and .cse0 .cse4 .cse3) (and .cse0 .cse4 .cse2))) [2024-11-19 22:04:58,608 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse3 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~methaneLevelCritical~0))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse2 .cse1) (and .cse0 .cse3))) (or (= ~pumpRunning~0 0) (not .cse3)) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse3 (= 0 ~systemActive~0))) (and (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~methaneLevelCritical~0))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse2 .cse1) (and .cse0 .cse3))) (or (= ~pumpRunning~0 0) (not .cse3)))) [2024-11-19 22:04:58,622 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3) (and .cse0 .cse4 .cse3) (and .cse0 .cse4 .cse2)))) Eliminated clause: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3) (and .cse0 .cse4 .cse3) (and .cse0 .cse4 .cse2))) [2024-11-19 22:04:58,626 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (= ~pumpRunning~0 0) (< ~methaneLevelCritical~0 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0)))) Eliminated clause: (and (or (= ~pumpRunning~0 0) (< ~methaneLevelCritical~0 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0)))) [2024-11-19 22:04:58,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:04:58 BoogieIcfgContainer [2024-11-19 22:04:58,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:04:58,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:04:58,636 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:04:58,636 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:04:58,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:51" (3/4) ... [2024-11-19 22:04:58,638 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 22:04:58,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-19 22:04:58,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-19 22:04:58,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-19 22:04:58,650 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-19 22:04:58,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 22:04:58,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 22:04:58,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:04:58,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:04:58,740 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:04:58,742 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 22:04:58,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:04:58,743 INFO L158 Benchmark]: Toolchain (without parser) took 8214.90ms. Allocated memory was 167.8MB in the beginning and 299.9MB in the end (delta: 132.1MB). Free memory was 108.4MB in the beginning and 114.0MB in the end (delta: -5.7MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,743 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:04:58,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.78ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 87.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.38ms. Allocated memory is still 167.8MB. Free memory was 87.0MB in the beginning and 84.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,743 INFO L158 Benchmark]: Boogie Preprocessor took 31.69ms. Allocated memory is still 167.8MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,743 INFO L158 Benchmark]: RCFGBuilder took 384.51ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 134.2MB in the end (delta: -51.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,744 INFO L158 Benchmark]: TraceAbstraction took 7292.26ms. Allocated memory was 249.6MB in the beginning and 299.9MB in the end (delta: 50.3MB). Free memory was 218.3MB in the beginning and 121.4MB in the end (delta: 96.9MB). Peak memory consumption was 178.9MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,744 INFO L158 Benchmark]: Witness Printer took 107.51ms. Allocated memory is still 299.9MB. Free memory was 121.4MB in the beginning and 114.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 22:04:58,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.78ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 87.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.38ms. Allocated memory is still 167.8MB. Free memory was 87.0MB in the beginning and 84.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.69ms. Allocated memory is still 167.8MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.51ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 134.2MB in the end (delta: -51.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7292.26ms. Allocated memory was 249.6MB in the beginning and 299.9MB in the end (delta: 50.3MB). Free memory was 218.3MB in the beginning and 121.4MB in the end (delta: 96.9MB). Peak memory consumption was 178.9MB. Max. memory is 16.1GB. * Witness Printer took 107.51ms. Allocated memory is still 299.9MB. Free memory was 121.4MB in the beginning and 114.0MB 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [618] - GenericResultAtLocation [Line: 646]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [646] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [868] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [877] - GenericResultAtLocation [Line: 946]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [946] * 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: 873]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1421 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1374 mSDsluCounter, 4135 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2911 mSDsCounter, 392 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1423 IncrementalHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 392 mSolverCounterUnsat, 1224 mSDtfsCounter, 1423 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 363 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=8, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 89 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 764 NumberOfCodeBlocks, 764 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 1 NumberOfNonLiveVariables, 570 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 126/133 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: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 888]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 == systemActive)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 887]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 762]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || (((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((((1 <= methaneLevelCritical) && (1 == systemActive)) || (((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (0 != systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 678]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 83]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) Ensures: (((((((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (0 == systemActive)) || (((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (0 == systemActive))) || (((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive))) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 654]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (0 == systemActive))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || ((1 <= methaneLevelCritical) && (0 == systemActive))) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: ((((((((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (\old(pumpRunning) == 0))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || ((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && (((\old(pumpRunning) != 0) || ((1 == systemActive) && (\old(waterLevel) == waterLevel))) || (0 == systemActive))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 153]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 95]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) Ensures: (((\result == methaneLevelCritical) && (((((1 <= methaneLevelCritical) && (1 == systemActive)) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive))) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 71]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) Ensures: ((((((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel)) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive)))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 686]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (1 < waterLevel))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 770]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-19 22:04:58,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE