./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product31.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_spec3_product31.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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:53:39,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:53:39,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:53:39,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:53:39,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:53:39,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:53:39,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:53:39,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:53:39,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:53:39,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:53:39,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:53:39,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:53:39,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:53:39,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:53:39,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:53:39,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:53:39,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:53:39,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:53:39,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:53:39,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:53:39,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:53:39,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:53:39,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:53:39,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:53:39,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:53:39,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:53:39,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:53:39,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:53:39,289 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:53:39,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:53:39,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:53:39,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:53:39,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:53:39,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:53:39,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:53:39,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:53:39,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:53:39,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:53:39,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:53:39,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:53:39,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:53:39,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:53:39,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2024-11-16 07:53:39,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:53:39,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:53:39,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:53:39,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:53:39,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:53:39,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-11-16 07:53:41,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:53:41,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:53:41,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-11-16 07:53:41,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6879741e6/6ac61430cb6342529498c6e438925aa0/FLAGcf17a8a24 [2024-11-16 07:53:41,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6879741e6/6ac61430cb6342529498c6e438925aa0 [2024-11-16 07:53:41,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:53:41,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:53:41,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:53:41,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:53:41,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:53:41,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:41" (1/1) ... [2024-11-16 07:53:41,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ff70f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:41, skipping insertion in model container [2024-11-16 07:53:41,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:41" (1/1) ... [2024-11-16 07:53:41,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:53:41,953 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_spec3_product31.cil.c[2984,2997] [2024-11-16 07:53:42,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:53:42,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:53:42,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-16 07:53:42,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2024-11-16 07:53:42,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] [2024-11-16 07:53:42,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2024-11-16 07:53:42,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] [2024-11-16 07:53:42,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] [2024-11-16 07:53:42,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] [2024-11-16 07:53:42,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] [2024-11-16 07:53:42,133 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_spec3_product31.cil.c[2984,2997] [2024-11-16 07:53:42,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:53:42,214 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:53:42,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42 WrapperNode [2024-11-16 07:53:42,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:53:42,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:53:42,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:53:42,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:53:42,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,282 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 185 [2024-11-16 07:53:42,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:53:42,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:53:42,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:53:42,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:53:42,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,319 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 07:53:42,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:53:42,338 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:53:42,339 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:53:42,339 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:53:42,340 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (1/1) ... [2024-11-16 07:53:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:53:42,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:53:42,373 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 07:53:42,376 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 07:53:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:53:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-16 07:53:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-16 07:53:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:53:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:53:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:53:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:53:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-16 07:53:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-16 07:53:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-16 07:53:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-16 07:53:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-16 07:53:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-16 07:53:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-16 07:53:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-16 07:53:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-16 07:53:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-16 07:53:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:53:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-16 07:53:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-16 07:53:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:53:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:53:42,508 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:53:42,511 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:53:42,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-16 07:53:42,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L732-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2024-11-16 07:53:42,668 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: #res := ~retValue_acc~0; [2024-11-16 07:53:42,734 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L874-1: valid_product_#res#1 := valid_product_~retValue_acc~10#1; [2024-11-16 07:53:42,734 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-1: main_#res#1 := main_~retValue_acc~11#1; [2024-11-16 07:53:42,769 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L787-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-16 07:53:42,769 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~2#1; [2024-11-16 07:53:42,774 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: #res := ~retValue_acc~6; [2024-11-16 07:53:42,800 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-16 07:53:42,801 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:53:42,814 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:53:42,814 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:53:42,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:53:42 BoogieIcfgContainer [2024-11-16 07:53:42,815 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:53:42,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:53:42,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:53:42,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:53:42,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:53:41" (1/3) ... [2024-11-16 07:53:42,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c6ff86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:42, skipping insertion in model container [2024-11-16 07:53:42,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:42" (2/3) ... [2024-11-16 07:53:42,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c6ff86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:42, skipping insertion in model container [2024-11-16 07:53:42,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:53:42" (3/3) ... [2024-11-16 07:53:42,823 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2024-11-16 07:53:42,835 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:53:42,836 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:53:42,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:53:42,895 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;@e267f47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:53:42,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:53:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 85 states have internal predecessors, (102), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 07:53:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 07:53:42,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:42,909 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] [2024-11-16 07:53:42,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:42,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1129459853, now seen corresponding path program 1 times [2024-11-16 07:53:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:42,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113062385] [2024-11-16 07:53:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:53:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,145 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 07:53:43,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:53:43,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113062385] [2024-11-16 07:53:43,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113062385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:53:43,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:53:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 07:53:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603571442] [2024-11-16 07:53:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:53:43,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:53:43,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:53:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:53:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 07:53:43,187 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 85 states have internal predecessors, (102), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 07:53:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:53:43,234 INFO L93 Difference]: Finished difference Result 197 states and 262 transitions. [2024-11-16 07:53:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:53:43,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 27 [2024-11-16 07:53:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:53:43,247 INFO L225 Difference]: With dead ends: 197 [2024-11-16 07:53:43,248 INFO L226 Difference]: Without dead ends: 92 [2024-11-16 07:53:43,252 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 07:53:43,258 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:53:43,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:53:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-16 07:53:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-16 07:53:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 75 states have internal predecessors, (86), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 07:53:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 117 transitions. [2024-11-16 07:53:43,313 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 117 transitions. Word has length 27 [2024-11-16 07:53:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:53:43,315 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 117 transitions. [2024-11-16 07:53:43,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 07:53:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 117 transitions. [2024-11-16 07:53:43,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 07:53:43,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:43,321 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 07:53:43,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 07:53:43,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:43,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1904209440, now seen corresponding path program 1 times [2024-11-16 07:53:43,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:43,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250521631] [2024-11-16 07:53:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:53:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,499 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 07:53:43,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:53:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250521631] [2024-11-16 07:53:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250521631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:53:43,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:53:43,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 07:53:43,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542276563] [2024-11-16 07:53:43,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:53:43,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:53:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:53:43,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:53:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 07:53:43,506 INFO L87 Difference]: Start difference. First operand 92 states and 117 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 07:53:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:53:43,534 INFO L93 Difference]: Finished difference Result 143 states and 181 transitions. [2024-11-16 07:53:43,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:53:43,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 30 [2024-11-16 07:53:43,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:53:43,537 INFO L225 Difference]: With dead ends: 143 [2024-11-16 07:53:43,537 INFO L226 Difference]: Without dead ends: 81 [2024-11-16 07:53:43,538 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 07:53:43,540 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 15 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 182 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 07:53:43,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:53:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-16 07:53:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-16 07:53:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 59 states have (on average 1.305084745762712) internal successors, (77), 67 states have internal predecessors, (77), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 07:53:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2024-11-16 07:53:43,560 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 30 [2024-11-16 07:53:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:53:43,561 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2024-11-16 07:53:43,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 07:53:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2024-11-16 07:53:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-16 07:53:43,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:43,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:53:43,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 07:53:43,563 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:43,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash 191052949, now seen corresponding path program 1 times [2024-11-16 07:53:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:43,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630120680] [2024-11-16 07:53:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 07:53:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,711 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 07:53:43,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:53:43,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630120680] [2024-11-16 07:53:43,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630120680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:53:43,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:53:43,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 07:53:43,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114100044] [2024-11-16 07:53:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:53:43,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:53:43,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:53:43,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:53:43,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 07:53:43,716 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 07:53:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:53:43,754 INFO L93 Difference]: Finished difference Result 228 states and 295 transitions. [2024-11-16 07:53:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:53:43,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 32 [2024-11-16 07:53:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:53:43,757 INFO L225 Difference]: With dead ends: 228 [2024-11-16 07:53:43,758 INFO L226 Difference]: Without dead ends: 154 [2024-11-16 07:53:43,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 07:53:43,760 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 82 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:53:43,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:53:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-16 07:53:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2024-11-16 07:53:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 122 states have internal predecessors, (142), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 17 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 07:53:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2024-11-16 07:53:43,785 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 32 [2024-11-16 07:53:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:53:43,786 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2024-11-16 07:53:43,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 07:53:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2024-11-16 07:53:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 07:53:43,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:43,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:53:43,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 07:53:43,789 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:43,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1546831377, now seen corresponding path program 1 times [2024-11-16 07:53:43,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:43,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274620007] [2024-11-16 07:53:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:43,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:53:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:43,974 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 07:53:43,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:53:43,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274620007] [2024-11-16 07:53:43,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274620007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:53:43,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:53:43,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 07:53:43,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388115276] [2024-11-16 07:53:43,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:53:43,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:53:43,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:53:43,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:53:43,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 07:53:43,977 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 07:53:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:53:44,093 INFO L93 Difference]: Finished difference Result 423 states and 562 transitions. [2024-11-16 07:53:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:53:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 36 [2024-11-16 07:53:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:53:44,098 INFO L225 Difference]: With dead ends: 423 [2024-11-16 07:53:44,098 INFO L226 Difference]: Without dead ends: 280 [2024-11-16 07:53:44,100 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 07:53:44,101 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 64 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:53:44,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 378 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:53:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-16 07:53:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-16 07:53:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 197 states have (on average 1.3147208121827412) internal successors, (259), 224 states have internal predecessors, (259), 52 states have call successors, (52), 32 states have call predecessors, (52), 30 states have return successors, (54), 32 states have call predecessors, (54), 52 states have call successors, (54) [2024-11-16 07:53:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 365 transitions. [2024-11-16 07:53:44,165 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 365 transitions. Word has length 36 [2024-11-16 07:53:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:53:44,165 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 365 transitions. [2024-11-16 07:53:44,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 07:53:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 365 transitions. [2024-11-16 07:53:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-16 07:53:44,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:44,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:53:44,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:53:44,170 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:44,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:44,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1888691694, now seen corresponding path program 1 times [2024-11-16 07:53:44,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:44,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132515124] [2024-11-16 07:53:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:44,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:44,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:53:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:53:44,248 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 07:53:44,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:53:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132515124] [2024-11-16 07:53:44,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132515124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:53:44,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:53:44,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 07:53:44,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701432274] [2024-11-16 07:53:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:53:44,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:53:44,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:53:44,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:53:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 07:53:44,252 INFO L87 Difference]: Start difference. First operand 280 states and 365 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 07:53:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:53:44,282 INFO L93 Difference]: Finished difference Result 463 states and 607 transitions. [2024-11-16 07:53:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:53:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2024-11-16 07:53:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:53:44,286 INFO L225 Difference]: With dead ends: 463 [2024-11-16 07:53:44,287 INFO L226 Difference]: Without dead ends: 190 [2024-11-16 07:53:44,288 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 07:53:44,289 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:53:44,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 62 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:53:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-16 07:53:44,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2024-11-16 07:53:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 141 states have (on average 1.2269503546099292) internal successors, (173), 148 states have internal predecessors, (173), 24 states have call successors, (24), 24 states have call predecessors, (24), 22 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 07:53:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2024-11-16 07:53:44,312 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 38 [2024-11-16 07:53:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:53:44,312 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2024-11-16 07:53:44,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 07:53:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2024-11-16 07:53:44,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 07:53:44,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:53:44,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:53:44,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:53:44,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:53:44,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:53:44,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1649246961, now seen corresponding path program 1 times [2024-11-16 07:53:44,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:53:44,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604056689] [2024-11-16 07:53:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:53:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:53:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 07:53:44,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 07:53:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 07:53:44,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 07:53:44,389 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 07:53:44,390 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 07:53:44,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:53:44,394 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 07:53:44,448 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 07:53:44,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:53:44 BoogieIcfgContainer [2024-11-16 07:53:44,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 07:53:44,454 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 07:53:44,454 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 07:53:44,455 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 07:53:44,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:53:42" (3/4) ... [2024-11-16 07:53:44,456 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 07:53:44,532 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 07:53:44,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 07:53:44,533 INFO L158 Benchmark]: Toolchain (without parser) took 2861.80ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 124.7MB in the beginning and 106.5MB in the end (delta: 18.2MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,534 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 07:53:44,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.19ms. Allocated memory is still 184.5MB. Free memory was 124.3MB in the beginning and 102.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.22ms. Allocated memory is still 184.5MB. Free memory was 102.8MB in the beginning and 100.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,534 INFO L158 Benchmark]: Boogie Preprocessor took 53.83ms. Allocated memory is still 184.5MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,535 INFO L158 Benchmark]: IcfgBuilder took 476.34ms. Allocated memory is still 184.5MB. Free memory was 98.7MB in the beginning and 79.0MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,535 INFO L158 Benchmark]: TraceAbstraction took 1636.66ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 78.1MB in the beginning and 109.6MB in the end (delta: -31.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,535 INFO L158 Benchmark]: Witness Printer took 78.53ms. Allocated memory is still 230.7MB. Free memory was 109.6MB in the beginning and 106.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 07:53:44,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.19ms. Allocated memory is still 184.5MB. Free memory was 124.3MB in the beginning and 102.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.22ms. Allocated memory is still 184.5MB. Free memory was 102.8MB in the beginning and 100.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.83ms. Allocated memory is still 184.5MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 476.34ms. Allocated memory is still 184.5MB. Free memory was 98.7MB in the beginning and 79.0MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1636.66ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 78.1MB in the beginning and 109.6MB in the end (delta: -31.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 78.53ms. Allocated memory is still 230.7MB. Free memory was 109.6MB in the beginning and 106.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] - GenericResultAtLocation [Line: 805]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] * 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 - CounterExampleResult [Line: 150]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L534] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L546] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L546] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp___2)) [L568] tmp___1 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___1) [L572] CALL stopSystem() [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L572] RET stopSystem() [L579] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L610] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND TRUE tmp___0 == 2 [L823] CALL, EXPR isPumpRunning() [L727] int retValue_acc ; [L730] retValue_acc = pumpRunning [L731] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L823] RET, EXPR isPumpRunning() [L823] tmp___1 = isPumpRunning() [L825] COND FALSE !(\read(tmp___1)) [L829] CALL __automaton_fail() [L150] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 962 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 454 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 508 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 07:53:44,571 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE