./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:52:10,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:52:10,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:52:10,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:52:10,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:52:10,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:52:10,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:52:10,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:52:10,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:52:10,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:52:10,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:52:10,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:52:10,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:52:10,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:52:10,827 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:52:10,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:52:10,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:52:10,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:52:10,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:52:10,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:52:10,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:52:10,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:52:10,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:52:10,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:52:10,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:52:10,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:52:10,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:52:10,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:52:10,836 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:52:10,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:52:10,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:52:10,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:52:10,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:52:10,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:52:10,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:52:10,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:52:10,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:52:10,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb [2024-11-16 07:52:11,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:52:11,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:52:11,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:52:11,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:52:11,226 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:52:11,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2024-11-16 07:52:12,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:52:12,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:52:12,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2024-11-16 07:52:12,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6735924/6346844df2364e9e84d549a5a95bb4af/FLAGe99d030f1 [2024-11-16 07:52:12,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6735924/6346844df2364e9e84d549a5a95bb4af [2024-11-16 07:52:12,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:52:12,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:52:12,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:52:12,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:52:12,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:52:12,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:52:12" (1/1) ... [2024-11-16 07:52:12,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6d9523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:12, skipping insertion in model container [2024-11-16 07:52:12,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:52:12" (1/1) ... [2024-11-16 07:52:12,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:52:13,104 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_product59.cil.c[3645,3658] [2024-11-16 07:52:13,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:52:13,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:52:13,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-16 07:52:13,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [160] [2024-11-16 07:52:13,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [188] [2024-11-16 07:52:13,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [197] [2024-11-16 07:52:13,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [267] [2024-11-16 07:52:13,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [500] [2024-11-16 07:52:13,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [866] [2024-11-16 07:52:13,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [904] [2024-11-16 07:52:13,290 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_product59.cil.c[3645,3658] [2024-11-16 07:52:13,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:52:13,345 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:52:13,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13 WrapperNode [2024-11-16 07:52:13,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:52:13,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:52:13,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:52:13,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:52:13,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,382 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 217 [2024-11-16 07:52:13,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:52:13,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:52:13,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:52:13,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:52:13,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,404 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]. [2024-11-16 07:52:13,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:52:13,416 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:52:13,416 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:52:13,416 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:52:13,417 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (1/1) ... [2024-11-16 07:52:13,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:52:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:52:13,460 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) [2024-11-16 07:52:13,466 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 [2024-11-16 07:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-16 07:52:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-16 07:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:52:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:52:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:52:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:52:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-16 07:52:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-16 07:52:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-16 07:52:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-16 07:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-16 07:52:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-16 07:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-16 07:52:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-16 07:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-16 07:52:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-16 07:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:52:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:52:13,596 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:52:13,598 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:52:13,754 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-16 07:52:13,755 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L482-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2024-11-16 07:52:13,755 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L408-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-16 07:52:13,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L102: #res := ~retValue_acc~0; [2024-11-16 07:52:13,816 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L901-1: valid_product_#res#1 := valid_product_~retValue_acc~12#1; [2024-11-16 07:52:13,816 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-1: main_#res#1 := main_~retValue_acc~13#1; [2024-11-16 07:52:13,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L399-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2024-11-16 07:52:13,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L463-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-16 07:52:13,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-16 07:52:13,866 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-16 07:52:13,867 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:52:13,882 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:52:13,883 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:52:13,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:52:13 BoogieIcfgContainer [2024-11-16 07:52:13,883 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:52:13,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:52:13,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:52:13,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:52:13,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:52:12" (1/3) ... [2024-11-16 07:52:13,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad36ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:52:13, skipping insertion in model container [2024-11-16 07:52:13,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:52:13" (2/3) ... [2024-11-16 07:52:13,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad36ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:52:13, skipping insertion in model container [2024-11-16 07:52:13,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:52:13" (3/3) ... [2024-11-16 07:52:13,889 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product59.cil.c [2024-11-16 07:52:13,903 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:52:13,903 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:52:13,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:52:13,960 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;@79a67cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:52:13,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:52:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 80 states have (on average 1.35) internal successors, (108), 89 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 07:52:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 07:52:13,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:13,973 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] [2024-11-16 07:52:13,973 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:13,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -311887620, now seen corresponding path program 1 times [2024-11-16 07:52:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:13,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003327087] [2024-11-16 07:52:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:13,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:52:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:52:14,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:14,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003327087] [2024-11-16 07:52:14,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003327087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:14,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:14,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 07:52:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65915818] [2024-11-16 07:52:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:14,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:52:14,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:14,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:52:14,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 07:52:14,152 INFO L87 Difference]: Start difference. First operand has 104 states, 80 states have (on average 1.35) internal successors, (108), 89 states have internal predecessors, (108), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-11-16 07:52:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:14,176 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2024-11-16 07:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:52:14,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2024-11-16 07:52:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:14,183 INFO L225 Difference]: With dead ends: 199 [2024-11-16 07:52:14,187 INFO L226 Difference]: Without dead ends: 93 [2024-11-16 07:52:14,190 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 [2024-11-16 07:52:14,193 INFO L432 NwaCegarLoop]: 129 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, 129 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 [2024-11-16 07:52:14,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:52:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-16 07:52:14,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-16 07:52:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 71 states have (on average 1.295774647887324) internal successors, (92), 79 states have internal predecessors, (92), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 07:52:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2024-11-16 07:52:14,227 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 25 [2024-11-16 07:52:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:14,227 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2024-11-16 07:52:14,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-11-16 07:52:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2024-11-16 07:52:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 07:52:14,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:14,229 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] [2024-11-16 07:52:14,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 07:52:14,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:14,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:14,231 INFO L85 PathProgramCache]: Analyzing trace with hash -477159258, now seen corresponding path program 1 times [2024-11-16 07:52:14,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:14,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945100991] [2024-11-16 07:52:14,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:14,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:52:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:52:14,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:14,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945100991] [2024-11-16 07:52:14,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945100991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:14,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:14,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 07:52:14,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955870161] [2024-11-16 07:52:14,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:14,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:52:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:14,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:52:14,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 07:52:14,336 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-16 07:52:14,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:14,349 INFO L93 Difference]: Finished difference Result 145 states and 185 transitions. [2024-11-16 07:52:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:52:14,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 28 [2024-11-16 07:52:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:14,351 INFO L225 Difference]: With dead ends: 145 [2024-11-16 07:52:14,351 INFO L226 Difference]: Without dead ends: 82 [2024-11-16 07:52:14,352 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 [2024-11-16 07:52:14,353 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 15 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 186 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 [2024-11-16 07:52:14,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 186 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:52:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-16 07:52:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-16 07:52:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 71 states have internal predecessors, (83), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-16 07:52:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2024-11-16 07:52:14,366 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 28 [2024-11-16 07:52:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:14,366 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2024-11-16 07:52:14,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-16 07:52:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2024-11-16 07:52:14,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 07:52:14,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:14,368 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] [2024-11-16 07:52:14,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 07:52:14,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:14,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1740844249, now seen corresponding path program 1 times [2024-11-16 07:52:14,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:14,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283091257] [2024-11-16 07:52:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:14,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:52:14,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:14,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283091257] [2024-11-16 07:52:14,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283091257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:14,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:14,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:52:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385283566] [2024-11-16 07:52:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:14,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:52:14,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:52:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:52:14,519 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-16 07:52:14,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:14,718 INFO L93 Difference]: Finished difference Result 275 states and 358 transitions. [2024-11-16 07:52:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:52:14,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2024-11-16 07:52:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:14,725 INFO L225 Difference]: With dead ends: 275 [2024-11-16 07:52:14,725 INFO L226 Difference]: Without dead ends: 200 [2024-11-16 07:52:14,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:52:14,730 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 247 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:14,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 428 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-16 07:52:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2024-11-16 07:52:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 163 states have internal predecessors, (195), 27 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (28), 19 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-16 07:52:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 250 transitions. [2024-11-16 07:52:14,761 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 250 transitions. Word has length 30 [2024-11-16 07:52:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:14,761 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 250 transitions. [2024-11-16 07:52:14,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-16 07:52:14,762 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 250 transitions. [2024-11-16 07:52:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 07:52:14,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:14,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:52:14,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 07:52:14,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:14,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1186323357, now seen corresponding path program 1 times [2024-11-16 07:52:14,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:14,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463438681] [2024-11-16 07:52:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:14,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:52:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:52:14,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:14,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463438681] [2024-11-16 07:52:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463438681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:14,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:14,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 07:52:14,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420092601] [2024-11-16 07:52:14,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:14,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:52:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:52:14,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 07:52:14,894 INFO L87 Difference]: Start difference. First operand 192 states and 250 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-16 07:52:14,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:14,969 INFO L93 Difference]: Finished difference Result 457 states and 609 transitions. [2024-11-16 07:52:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:52:14,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2024-11-16 07:52:14,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:14,974 INFO L225 Difference]: With dead ends: 457 [2024-11-16 07:52:14,974 INFO L226 Difference]: Without dead ends: 272 [2024-11-16 07:52:14,977 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 [2024-11-16 07:52:14,980 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 55 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 358 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 [2024-11-16 07:52:14,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 358 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:52:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-16 07:52:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2024-11-16 07:52:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 205 states have (on average 1.2926829268292683) internal successors, (265), 224 states have internal predecessors, (265), 34 states have call successors, (34), 30 states have call predecessors, (34), 30 states have return successors, (44), 31 states have call predecessors, (44), 34 states have call successors, (44) [2024-11-16 07:52:15,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 343 transitions. [2024-11-16 07:52:15,010 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 343 transitions. Word has length 34 [2024-11-16 07:52:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:15,010 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 343 transitions. [2024-11-16 07:52:15,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-16 07:52:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 343 transitions. [2024-11-16 07:52:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 07:52:15,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:15,012 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] [2024-11-16 07:52:15,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:52:15,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:15,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:15,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2051606444, now seen corresponding path program 1 times [2024-11-16 07:52:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:15,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891492218] [2024-11-16 07:52:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:52:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:52:15,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891492218] [2024-11-16 07:52:15,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891492218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:15,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:15,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:52:15,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733294037] [2024-11-16 07:52:15,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:15,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:52:15,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:15,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:52:15,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:52:15,152 INFO L87 Difference]: Start difference. First operand 270 states and 343 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 07:52:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:15,280 INFO L93 Difference]: Finished difference Result 586 states and 761 transitions. [2024-11-16 07:52:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:52:15,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2024-11-16 07:52:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:15,283 INFO L225 Difference]: With dead ends: 586 [2024-11-16 07:52:15,283 INFO L226 Difference]: Without dead ends: 323 [2024-11-16 07:52:15,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:52:15,285 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:15,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 360 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-16 07:52:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 320. [2024-11-16 07:52:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 245 states have (on average 1.2693877551020407) internal successors, (311), 264 states have internal predecessors, (311), 38 states have call successors, (38), 30 states have call predecessors, (38), 36 states have return successors, (54), 39 states have call predecessors, (54), 38 states have call successors, (54) [2024-11-16 07:52:15,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 403 transitions. [2024-11-16 07:52:15,323 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 403 transitions. Word has length 52 [2024-11-16 07:52:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:15,324 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 403 transitions. [2024-11-16 07:52:15,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 07:52:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 403 transitions. [2024-11-16 07:52:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 07:52:15,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:15,326 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] [2024-11-16 07:52:15,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:52:15,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:15,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1281746835, now seen corresponding path program 1 times [2024-11-16 07:52:15,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:15,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356087244] [2024-11-16 07:52:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:15,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:52:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:52:15,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:15,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356087244] [2024-11-16 07:52:15,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356087244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:15,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:15,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 07:52:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467459290] [2024-11-16 07:52:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:15,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:52:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:15,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:52:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 07:52:15,421 INFO L87 Difference]: Start difference. First operand 320 states and 403 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 07:52:15,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:15,523 INFO L93 Difference]: Finished difference Result 640 states and 825 transitions. [2024-11-16 07:52:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:52:15,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2024-11-16 07:52:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:15,525 INFO L225 Difference]: With dead ends: 640 [2024-11-16 07:52:15,525 INFO L226 Difference]: Without dead ends: 327 [2024-11-16 07:52:15,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:52:15,529 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 56 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:15,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 282 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-16 07:52:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 324. [2024-11-16 07:52:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 249 states have (on average 1.2650602409638554) internal successors, (315), 268 states have internal predecessors, (315), 38 states have call successors, (38), 30 states have call predecessors, (38), 36 states have return successors, (54), 39 states have call predecessors, (54), 38 states have call successors, (54) [2024-11-16 07:52:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 407 transitions. [2024-11-16 07:52:15,556 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 407 transitions. Word has length 52 [2024-11-16 07:52:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:15,556 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 407 transitions. [2024-11-16 07:52:15,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 07:52:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 407 transitions. [2024-11-16 07:52:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 07:52:15,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:15,559 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] [2024-11-16 07:52:15,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:52:15,559 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:15,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:15,560 INFO L85 PathProgramCache]: Analyzing trace with hash 104456559, now seen corresponding path program 1 times [2024-11-16 07:52:15,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:15,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260954091] [2024-11-16 07:52:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:52:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:52:15,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:15,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260954091] [2024-11-16 07:52:15,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260954091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:15,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:15,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 07:52:15,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75924785] [2024-11-16 07:52:15,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:15,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:52:15,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:15,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:52:15,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 07:52:15,654 INFO L87 Difference]: Start difference. First operand 324 states and 407 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 07:52:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:15,828 INFO L93 Difference]: Finished difference Result 960 states and 1254 transitions. [2024-11-16 07:52:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:52:15,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2024-11-16 07:52:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:15,832 INFO L225 Difference]: With dead ends: 960 [2024-11-16 07:52:15,832 INFO L226 Difference]: Without dead ends: 643 [2024-11-16 07:52:15,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:52:15,835 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 220 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:15,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 305 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-16 07:52:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 635. [2024-11-16 07:52:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 485 states have (on average 1.2412371134020619) internal successors, (602), 516 states have internal predecessors, (602), 77 states have call successors, (77), 71 states have call predecessors, (77), 72 states have return successors, (122), 75 states have call predecessors, (122), 77 states have call successors, (122) [2024-11-16 07:52:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 801 transitions. [2024-11-16 07:52:15,867 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 801 transitions. Word has length 52 [2024-11-16 07:52:15,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:15,867 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 801 transitions. [2024-11-16 07:52:15,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 07:52:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 801 transitions. [2024-11-16 07:52:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 07:52:15,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:15,868 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] [2024-11-16 07:52:15,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:52:15,868 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:15,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:15,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1186215821, now seen corresponding path program 1 times [2024-11-16 07:52:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135914770] [2024-11-16 07:52:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:52:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:52:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:52:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:52:16,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135914770] [2024-11-16 07:52:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135914770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:52:16,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 07:52:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916699946] [2024-11-16 07:52:16,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:16,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 07:52:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:16,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 07:52:16,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:52:16,029 INFO L87 Difference]: Start difference. First operand 635 states and 801 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 07:52:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:16,552 INFO L93 Difference]: Finished difference Result 2029 states and 2682 transitions. [2024-11-16 07:52:16,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 07:52:16,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-16 07:52:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:16,559 INFO L225 Difference]: With dead ends: 2029 [2024-11-16 07:52:16,559 INFO L226 Difference]: Without dead ends: 1401 [2024-11-16 07:52:16,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2024-11-16 07:52:16,562 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 402 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:16,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 515 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 07:52:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-16 07:52:16,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1362. [2024-11-16 07:52:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1027 states have (on average 1.210321324245375) internal successors, (1243), 1104 states have internal predecessors, (1243), 176 states have call successors, (176), 138 states have call predecessors, (176), 158 states have return successors, (319), 172 states have call predecessors, (319), 176 states have call successors, (319) [2024-11-16 07:52:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1738 transitions. [2024-11-16 07:52:16,641 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1738 transitions. Word has length 56 [2024-11-16 07:52:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:16,642 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1738 transitions. [2024-11-16 07:52:16,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 07:52:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1738 transitions. [2024-11-16 07:52:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 07:52:16,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:16,645 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 07:52:16,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:52:16,646 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:16,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:16,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1812456047, now seen corresponding path program 1 times [2024-11-16 07:52:16,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:16,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342530727] [2024-11-16 07:52:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:16,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:52:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:52:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:52:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 07:52:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:52:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:52:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:52:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 07:52:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:52:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 07:52:16,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:16,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342530727] [2024-11-16 07:52:16,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342530727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:52:16,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971840044] [2024-11-16 07:52:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:16,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:52:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:52:16,902 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) [2024-11-16 07:52:16,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:52:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:16,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:52:17,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:52:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 07:52:17,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:52:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971840044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:52:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 19 [2024-11-16 07:52:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665731453] [2024-11-16 07:52:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:17,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:52:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:52:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:52:17,154 INFO L87 Difference]: Start difference. First operand 1362 states and 1738 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:52:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:17,286 INFO L93 Difference]: Finished difference Result 2717 states and 3469 transitions. [2024-11-16 07:52:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:52:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-16 07:52:17,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:17,291 INFO L225 Difference]: With dead ends: 2717 [2024-11-16 07:52:17,291 INFO L226 Difference]: Without dead ends: 1362 [2024-11-16 07:52:17,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:52:17,294 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 70 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:17,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 643 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:17,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-16 07:52:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1362. [2024-11-16 07:52:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1027 states have (on average 1.195715676728335) internal successors, (1228), 1104 states have internal predecessors, (1228), 176 states have call successors, (176), 138 states have call predecessors, (176), 158 states have return successors, (282), 172 states have call predecessors, (282), 176 states have call successors, (282) [2024-11-16 07:52:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1686 transitions. [2024-11-16 07:52:17,380 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1686 transitions. Word has length 103 [2024-11-16 07:52:17,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:17,380 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1686 transitions. [2024-11-16 07:52:17,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:52:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1686 transitions. [2024-11-16 07:52:17,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 07:52:17,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:17,383 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:52:17,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:52:17,587 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 [2024-11-16 07:52:17,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:17,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2046907154, now seen corresponding path program 1 times [2024-11-16 07:52:17,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:17,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707218089] [2024-11-16 07:52:17,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:17,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:52:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 07:52:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:52:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:52:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:52:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 07:52:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:52:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 07:52:17,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:17,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707218089] [2024-11-16 07:52:17,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707218089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:52:17,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514548453] [2024-11-16 07:52:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:17,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:52:17,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:52:17,727 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) [2024-11-16 07:52:17,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:52:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:17,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 07:52:17,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:52:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:52:17,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:52:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514548453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:17,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:52:17,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2024-11-16 07:52:17,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009170009] [2024-11-16 07:52:17,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:17,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:52:17,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:17,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:52:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:52:17,860 INFO L87 Difference]: Start difference. First operand 1362 states and 1686 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:52:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:18,007 INFO L93 Difference]: Finished difference Result 3182 states and 4128 transitions. [2024-11-16 07:52:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:52:18,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 99 [2024-11-16 07:52:18,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:18,015 INFO L225 Difference]: With dead ends: 3182 [2024-11-16 07:52:18,015 INFO L226 Difference]: Without dead ends: 2089 [2024-11-16 07:52:18,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:52:18,018 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 128 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:18,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 604 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:52:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-11-16 07:52:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1884. [2024-11-16 07:52:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1413 states have (on average 1.202406227883935) internal successors, (1699), 1522 states have internal predecessors, (1699), 248 states have call successors, (248), 198 states have call predecessors, (248), 222 states have return successors, (417), 228 states have call predecessors, (417), 248 states have call successors, (417) [2024-11-16 07:52:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2364 transitions. [2024-11-16 07:52:18,096 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2364 transitions. Word has length 99 [2024-11-16 07:52:18,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:18,096 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2364 transitions. [2024-11-16 07:52:18,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:52:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2364 transitions. [2024-11-16 07:52:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 07:52:18,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:52:18,099 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:52:18,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 07:52:18,302 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,SelfDestructingSolverStorable9 [2024-11-16 07:52:18,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:52:18,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:52:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2113913907, now seen corresponding path program 1 times [2024-11-16 07:52:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:52:18,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461136403] [2024-11-16 07:52:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:52:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:52:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:52:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 07:52:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:52:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:52:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:52:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:52:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 07:52:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:52:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 07:52:18,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:52:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461136403] [2024-11-16 07:52:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461136403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:52:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157310444] [2024-11-16 07:52:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:52:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:52:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:52:18,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:52:18,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:52:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:52:18,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 07:52:18,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:52:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-16 07:52:18,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:52:18,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157310444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:52:18,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:52:18,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-16 07:52:18,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494840378] [2024-11-16 07:52:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:52:18,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:52:18,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:52:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:52:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:52:18,492 INFO L87 Difference]: Start difference. First operand 1884 states and 2364 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:52:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:52:18,581 INFO L93 Difference]: Finished difference Result 2674 states and 3332 transitions. [2024-11-16 07:52:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:52:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-11-16 07:52:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:52:18,583 INFO L225 Difference]: With dead ends: 2674 [2024-11-16 07:52:18,583 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 07:52:18,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:52:18,588 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:52:18,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 359 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:52:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 07:52:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 07:52:18,589 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) [2024-11-16 07:52:18,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 07:52:18,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2024-11-16 07:52:18,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:52:18,590 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 07:52:18,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:52:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 07:52:18,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 07:52:18,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 07:52:18,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 07:52:18,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:52:18,799 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:52:18,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 07:52:22,089 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 07:52:22,104 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 ~waterLevel~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~waterLevel~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2024-11-16 07:52:22,140 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1) (and .cse0 .cse2 .cse1) (and .cse2 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))))) (or (not .cse2) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1) (and .cse0 .cse2 .cse1) (and .cse2 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))))) (or (not .cse2) (= ~methaneLevelCritical~0 0))))) [2024-11-16 07:52:22,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-16 07:52:22,160 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 2 |old(~waterLevel~0)|)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse0 .cse4 .cse5))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse3 .cse0 .cse5) (and .cse4 .cse1 .cse2))) [2024-11-16 07:52:22,191 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 (<= 1 ~waterLevel~0) .cse1) (and .cse2 (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) .cse0) (and .cse1 (= ~waterLevel~0 1) .cse0) (and .cse1 (<= 2 ~waterLevel~0) .cse0)))) [2024-11-16 07:52:22,202 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |old(~waterLevel~0)|)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and .cse0 .cse2 .cse1) (and .cse2 (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse1 .cse0 .cse2))) [2024-11-16 07:52:22,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:52:22 BoogieIcfgContainer [2024-11-16 07:52:22,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 07:52:22,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 07:52:22,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 07:52:22,209 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 07:52:22,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:52:13" (3/4) ... [2024-11-16 07:52:22,215 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 07:52:22,218 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-16 07:52:22,221 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-16 07:52:22,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-11-16 07:52:22,233 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-16 07:52:22,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 07:52:22,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 07:52:22,237 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 07:52:22,410 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 07:52:22,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 07:52:22,412 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 07:52:22,413 INFO L158 Benchmark]: Toolchain (without parser) took 9519.88ms. Allocated memory was 161.5MB in the beginning and 333.4MB in the end (delta: 172.0MB). Free memory was 90.4MB in the beginning and 113.1MB in the end (delta: -22.8MB). Peak memory consumption was 151.5MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,413 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 07:52:22,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.26ms. Allocated memory is still 161.5MB. Free memory was 90.1MB in the beginning and 123.8MB in the end (delta: -33.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 121.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,413 INFO L158 Benchmark]: Boogie Preprocessor took 28.60ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,414 INFO L158 Benchmark]: IcfgBuilder took 467.47ms. Allocated memory is still 161.5MB. Free memory was 119.6MB in the beginning and 98.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,414 INFO L158 Benchmark]: TraceAbstraction took 8324.24ms. Allocated memory was 161.5MB in the beginning and 333.4MB in the end (delta: 172.0MB). Free memory was 98.1MB in the beginning and 121.5MB in the end (delta: -23.5MB). Peak memory consumption was 155.5MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,414 INFO L158 Benchmark]: Witness Printer took 203.24ms. Allocated memory is still 333.4MB. Free memory was 121.5MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 07:52:22,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.26ms. Allocated memory is still 161.5MB. Free memory was 90.1MB in the beginning and 123.8MB in the end (delta: -33.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 121.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.60ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 467.47ms. Allocated memory is still 161.5MB. Free memory was 119.6MB in the beginning and 98.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8324.24ms. Allocated memory was 161.5MB in the beginning and 333.4MB in the end (delta: 172.0MB). Free memory was 98.1MB in the beginning and 121.5MB in the end (delta: -23.5MB). Peak memory consumption was 155.5MB. Max. memory is 16.1GB. * Witness Printer took 203.24ms. Allocated memory is still 333.4MB. Free memory was 121.5MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [160] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [188] - GenericResultAtLocation [Line: 197]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [197] - GenericResultAtLocation [Line: 267]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [267] - GenericResultAtLocation [Line: 500]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [500] - GenericResultAtLocation [Line: 866]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [866] - GenericResultAtLocation [Line: 904]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [904] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 193]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1276 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1250 mSDsluCounter, 4169 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2922 mSDsCounter, 268 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1099 IncrementalHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 268 mSolverCounterUnsat, 1247 mSDtfsCounter, 1099 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 487 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1884occurred in iteration=10, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 268 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 931 NumberOfCodeBlocks, 931 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 917 ConstructedInterpolants, 0 QuantifiedInterpolants, 1537 SizeOfPredicates, 2 NumberOfNonLiveVariables, 962 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 194/206 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: 211]: Location Invariant Derived location invariant: null - InvariantResult [Line: 916]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 383]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (1 <= waterLevel)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && ((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (1 <= waterLevel)) && (0 != systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 298]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel)) && (0 != systemActive)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel == 1)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel)) && (0 != systemActive)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel == 1)) && (0 != systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (0 != systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && (((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 <= waterLevel)) || (((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 <= waterLevel))) || (((\old(methaneLevelCritical) == 0) && (2 <= waterLevel)) && (0 != systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 906]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 274]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1))) && ((pumpRunning == 0) || (0 != systemActive))) && ((methaneLevelCritical < 1) || ((pumpRunning == 0) && (1 <= waterLevel)))) && (((((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) || ((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0))) || (((methaneLevelCritical == 0) && (2 <= \old(waterLevel))) && (0 != systemActive))) || (((1 <= methaneLevelCritical) && (2 <= \old(waterLevel))) && (0 != systemActive)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 96]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel == 1))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel == 1))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel))) && (\result == methaneLevelCritical)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 306]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((((methaneLevelCritical == 0) && (1 <= waterLevel)) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (waterLevel == 1)) && (0 != systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (0 != systemActive)))) Ensures: (((((pumpRunning == 0) || (methaneLevelCritical < 1)) && ((((((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) && (0 != systemActive)) || ((((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (\old(pumpRunning) == 0)) && (0 != systemActive))) || ((((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (waterLevel == 1)) && (0 != systemActive)))) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= waterLevel))) Ensures: (((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 <= \old(waterLevel))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 <= \old(waterLevel)))) || (((methaneLevelCritical == 0) && (2 <= \old(waterLevel))) && (0 != systemActive)))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-16 07:52:22,478 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