./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_product33.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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:17:04,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:17:04,265 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:17:04,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:17:04,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:17:04,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:17:04,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:17:04,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:17:04,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:17:04,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:17:04,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:17:04,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:17:04,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:17:04,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:17:04,298 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:17:04,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:17:04,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:17:04,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:17:04,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:17:04,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:17:04,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:17:04,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:17:04,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:17:04,303 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:17:04,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:17:04,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:17:04,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:17:04,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:17:04,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:17:04,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:17:04,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:17:04,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2024-11-09 23:17:04,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:17:04,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:17:04,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:17:04,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:17:04,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:17:04,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-11-09 23:17:05,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:17:05,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:17:05,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-11-09 23:17:05,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093da176b/ea7b6aea6bb24919abb781b51e3e207a/FLAGde654a5a4 [2024-11-09 23:17:05,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093da176b/ea7b6aea6bb24919abb781b51e3e207a [2024-11-09 23:17:05,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:17:05,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:17:05,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:17:05,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:17:05,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:17:05,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:05" (1/1) ... [2024-11-09 23:17:05,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4930e640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:05, skipping insertion in model container [2024-11-09 23:17:05,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:05" (1/1) ... [2024-11-09 23:17:06,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:17:06,235 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_product33.cil.c[13988,14001] [2024-11-09 23:17:06,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:17:06,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:17:06,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-09 23:17:06,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2024-11-09 23:17:06,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2024-11-09 23:17:06,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] [2024-11-09 23:17:06,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] [2024-11-09 23:17:06,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] [2024-11-09 23:17:06,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] [2024-11-09 23:17:06,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] [2024-11-09 23:17:06,333 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_product33.cil.c[13988,14001] [2024-11-09 23:17:06,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:17:06,375 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:17:06,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06 WrapperNode [2024-11-09 23:17:06,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:17:06,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:17:06,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:17:06,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:17:06,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,420 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 175 [2024-11-09 23:17:06,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:17:06,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:17:06,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:17:06,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:17:06,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,455 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]. [2024-11-09 23:17:06,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:17:06,471 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:17:06,472 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:17:06,472 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:17:06,473 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (1/1) ... [2024-11-09 23:17:06,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:17:06,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:17:06,502 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) [2024-11-09 23:17:06,506 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 [2024-11-09 23:17:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:17:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:17:06,544 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:17:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:17:06,544 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:17:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:17:06,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:17:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-09 23:17:06,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-09 23:17:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:17:06,545 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:17:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:17:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:17:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:17:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:17:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:17:06,621 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:17:06,623 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:17:06,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-09 23:17:06,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L845-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-09 23:17:06,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-09 23:17:06,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L790-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-09 23:17:06,763 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: #res := ~retValue_acc~0; [2024-11-09 23:17:06,828 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L249-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-09 23:17:06,828 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L914-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2024-11-09 23:17:06,845 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-09 23:17:06,845 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:17:06,860 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:17:06,860 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:17:06,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:06 BoogieIcfgContainer [2024-11-09 23:17:06,861 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:17:06,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:17:06,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:17:06,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:17:06,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:17:05" (1/3) ... [2024-11-09 23:17:06,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3eb7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:06, skipping insertion in model container [2024-11-09 23:17:06,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:06" (2/3) ... [2024-11-09 23:17:06,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3eb7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:06, skipping insertion in model container [2024-11-09 23:17:06,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:06" (3/3) ... [2024-11-09 23:17:06,868 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2024-11-09 23:17:06,883 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:17:06,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:17:06,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:17:06,942 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;@18f31a37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:17:06,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:17:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.380952380952381) internal successors, (87), 69 states have internal predecessors, (87), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 23:17:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 23:17:06,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:06,953 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] [2024-11-09 23:17:06,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:06,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash 460681673, now seen corresponding path program 1 times [2024-11-09 23:17:06,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:06,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548934719] [2024-11-09 23:17:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 23:17:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548934719] [2024-11-09 23:17:07,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548934719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:17:07,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802217188] [2024-11-09 23:17:07,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:17:07,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:17:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:17:07,131 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.380952380952381) internal successors, (87), 69 states have internal predecessors, (87), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2024-11-09 23:17:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,150 INFO L93 Difference]: Finished difference Result 151 states and 204 transitions. [2024-11-09 23:17:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:17:07,152 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 [2024-11-09 23:17:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,158 INFO L225 Difference]: With dead ends: 151 [2024-11-09 23:17:07,158 INFO L226 Difference]: Without dead ends: 69 [2024-11-09 23:17:07,161 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 [2024-11-09 23:17:07,163 INFO L432 NwaCegarLoop]: 98 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, 98 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 [2024-11-09 23:17:07,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:07,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-09 23:17:07,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-09 23:17:07,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 23:17:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2024-11-09 23:17:07,197 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 27 [2024-11-09 23:17:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,197 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2024-11-09 23:17:07,197 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) [2024-11-09 23:17:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2024-11-09 23:17:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:17:07,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:07,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:17:07,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash -226609169, now seen corresponding path program 1 times [2024-11-09 23:17:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810790674] [2024-11-09 23:17:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 23:17:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810790674] [2024-11-09 23:17:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810790674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:17:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431372627] [2024-11-09 23:17:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:07,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:07,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:07,310 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-09 23:17:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,326 INFO L93 Difference]: Finished difference Result 103 states and 131 transitions. [2024-11-09 23:17:07,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 29 [2024-11-09 23:17:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,331 INFO L225 Difference]: With dead ends: 103 [2024-11-09 23:17:07,331 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 23:17:07,331 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 [2024-11-09 23:17:07,335 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 11 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 132 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 [2024-11-09 23:17:07,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 23:17:07,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-09 23:17:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 23:17:07,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2024-11-09 23:17:07,348 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 29 [2024-11-09 23:17:07,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,348 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2024-11-09 23:17:07,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-09 23:17:07,349 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2024-11-09 23:17:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 23:17:07,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,349 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] [2024-11-09 23:17:07,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:17:07,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1752022873, now seen corresponding path program 1 times [2024-11-09 23:17:07,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240405163] [2024-11-09 23:17:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:17:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240405163] [2024-11-09 23:17:07,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240405163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128263698] [2024-11-09 23:17:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:07,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:07,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:07,485 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 23:17:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,576 INFO L93 Difference]: Finished difference Result 111 states and 144 transitions. [2024-11-09 23:17:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:17:07,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 31 [2024-11-09 23:17:07,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,579 INFO L225 Difference]: With dead ends: 111 [2024-11-09 23:17:07,579 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 23:17:07,579 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 [2024-11-09 23:17:07,580 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 119 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:07,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 185 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 23:17:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-09 23:17:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 52 states have internal predecessors, (62), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 23:17:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2024-11-09 23:17:07,586 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 31 [2024-11-09 23:17:07,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,588 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2024-11-09 23:17:07,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 23:17:07,588 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2024-11-09 23:17:07,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 23:17:07,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,589 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] [2024-11-09 23:17:07,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:17:07,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash -103019148, now seen corresponding path program 1 times [2024-11-09 23:17:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362932147] [2024-11-09 23:17:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:17:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:17:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362932147] [2024-11-09 23:17:07,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362932147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:17:07,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332738466] [2024-11-09 23:17:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:07,648 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:17:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,680 INFO L93 Difference]: Finished difference Result 152 states and 195 transitions. [2024-11-09 23:17:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-09 23:17:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,685 INFO L225 Difference]: With dead ends: 152 [2024-11-09 23:17:07,685 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 23:17:07,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:07,686 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 63 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:07,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 23:17:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2024-11-09 23:17:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 82 states have internal predecessors, (100), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 23:17:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2024-11-09 23:17:07,703 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 36 [2024-11-09 23:17:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,704 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2024-11-09 23:17:07,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:17:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2024-11-09 23:17:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 23:17:07,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,707 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] [2024-11-09 23:17:07,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:17:07,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1104837386, now seen corresponding path program 1 times [2024-11-09 23:17:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897404922] [2024-11-09 23:17:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:17:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897404922] [2024-11-09 23:17:07,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897404922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:17:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473221111] [2024-11-09 23:17:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:17:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:17:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:07,824 INFO L87 Difference]: Start difference. First operand 97 states and 122 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-09 23:17:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,856 INFO L93 Difference]: Finished difference Result 267 states and 351 transitions. [2024-11-09 23:17:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:17:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 40 [2024-11-09 23:17:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,857 INFO L225 Difference]: With dead ends: 267 [2024-11-09 23:17:07,857 INFO L226 Difference]: Without dead ends: 177 [2024-11-09 23:17:07,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:17:07,861 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:07,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 131 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-09 23:17:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2024-11-09 23:17:07,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.313868613138686) internal successors, (180), 145 states have internal predecessors, (180), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2024-11-09 23:17:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 224 transitions. [2024-11-09 23:17:07,877 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 224 transitions. Word has length 40 [2024-11-09 23:17:07,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,877 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 224 transitions. [2024-11-09 23:17:07,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-09 23:17:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 224 transitions. [2024-11-09 23:17:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 23:17:07,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,878 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] [2024-11-09 23:17:07,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:17:07,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash 682135560, now seen corresponding path program 1 times [2024-11-09 23:17:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340485547] [2024-11-09 23:17:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:17:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:07,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:07,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340485547] [2024-11-09 23:17:07,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340485547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:07,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:07,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:17:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894293288] [2024-11-09 23:17:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:07,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:17:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:07,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:17:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:17:07,937 INFO L87 Difference]: Start difference. First operand 174 states and 224 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:07,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:07,966 INFO L93 Difference]: Finished difference Result 347 states and 454 transitions. [2024-11-09 23:17:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:17:07,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 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 40 [2024-11-09 23:17:07,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:07,969 INFO L225 Difference]: With dead ends: 347 [2024-11-09 23:17:07,969 INFO L226 Difference]: Without dead ends: 180 [2024-11-09 23:17:07,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:17:07,972 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:07,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:07,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-09 23:17:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-09 23:17:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 151 states have internal predecessors, (186), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2024-11-09 23:17:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2024-11-09 23:17:07,997 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 40 [2024-11-09 23:17:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:07,997 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2024-11-09 23:17:07,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2024-11-09 23:17:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 23:17:07,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:07,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:07,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:17:07,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash -162336311, now seen corresponding path program 1 times [2024-11-09 23:17:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:07,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550726800] [2024-11-09 23:17:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:17:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550726800] [2024-11-09 23:17:08,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550726800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:17:08,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361393017] [2024-11-09 23:17:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:17:08,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:17:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:17:08,069 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:08,083 INFO L93 Difference]: Finished difference Result 318 states and 410 transitions. [2024-11-09 23:17:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:17:08,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 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 40 [2024-11-09 23:17:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:08,085 INFO L225 Difference]: With dead ends: 318 [2024-11-09 23:17:08,085 INFO L226 Difference]: Without dead ends: 145 [2024-11-09 23:17:08,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:17:08,086 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:08,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:08,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-09 23:17:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-09 23:17:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 122 states have internal predecessors, (147), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-09 23:17:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2024-11-09 23:17:08,097 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 40 [2024-11-09 23:17:08,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:08,098 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2024-11-09 23:17:08,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:17:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2024-11-09 23:17:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 23:17:08,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:08,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:08,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:17:08,099 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:08,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1648614264, now seen corresponding path program 1 times [2024-11-09 23:17:08,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:08,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900492700] [2024-11-09 23:17:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:17:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:17:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900492700] [2024-11-09 23:17:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900492700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:17:08,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285155570] [2024-11-09 23:17:08,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:17:08,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:17:08,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:17:08,194 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:17:08,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:08,234 INFO L93 Difference]: Finished difference Result 281 states and 349 transitions. [2024-11-09 23:17:08,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:17:08,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2024-11-09 23:17:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:08,235 INFO L225 Difference]: With dead ends: 281 [2024-11-09 23:17:08,236 INFO L226 Difference]: Without dead ends: 143 [2024-11-09 23:17:08,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:17:08,239 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 23 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:08,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 264 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-09 23:17:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-09 23:17:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 113 states have (on average 1.2654867256637168) internal successors, (143), 120 states have internal predecessors, (143), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-09 23:17:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 175 transitions. [2024-11-09 23:17:08,252 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 175 transitions. Word has length 42 [2024-11-09 23:17:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:08,252 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 175 transitions. [2024-11-09 23:17:08,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:17:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 175 transitions. [2024-11-09 23:17:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 23:17:08,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:08,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:08,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:17:08,253 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:08,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1305584147, now seen corresponding path program 1 times [2024-11-09 23:17:08,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:08,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330108546] [2024-11-09 23:17:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:08,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:17:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330108546] [2024-11-09 23:17:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330108546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:17:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100117420] [2024-11-09 23:17:08,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:17:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:17:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:17:08,347 INFO L87 Difference]: Start difference. First operand 143 states and 175 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 23:17:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:08,551 INFO L93 Difference]: Finished difference Result 258 states and 322 transitions. [2024-11-09 23:17:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:17:08,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-09 23:17:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:08,553 INFO L225 Difference]: With dead ends: 258 [2024-11-09 23:17:08,553 INFO L226 Difference]: Without dead ends: 103 [2024-11-09 23:17:08,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:17:08,555 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 94 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:08,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 518 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:17:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-09 23:17:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2024-11-09 23:17:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 84 states have internal predecessors, (96), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-09 23:17:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2024-11-09 23:17:08,563 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 44 [2024-11-09 23:17:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:08,563 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2024-11-09 23:17:08,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 23:17:08,564 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2024-11-09 23:17:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 23:17:08,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:08,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:08,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:17:08,564 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:08,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1795895652, now seen corresponding path program 1 times [2024-11-09 23:17:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477483394] [2024-11-09 23:17:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 23:17:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 23:17:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477483394] [2024-11-09 23:17:08,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477483394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:17:08,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120705852] [2024-11-09 23:17:08,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:17:08,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:17:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:17:08,616 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:08,671 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2024-11-09 23:17:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:17:08,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-09 23:17:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:08,672 INFO L225 Difference]: With dead ends: 152 [2024-11-09 23:17:08,672 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 23:17:08,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:17:08,673 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 34 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:08,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 172 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:08,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 23:17:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 23:17:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 84 states have internal predecessors, (95), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-09 23:17:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2024-11-09 23:17:08,681 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 46 [2024-11-09 23:17:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:08,682 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2024-11-09 23:17:08,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2024-11-09 23:17:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 23:17:08,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:08,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:08,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:17:08,683 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:08,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1584544739, now seen corresponding path program 1 times [2024-11-09 23:17:08,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:08,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677218635] [2024-11-09 23:17:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:08,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 23:17:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 23:17:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677218635] [2024-11-09 23:17:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677218635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:17:08,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428917075] [2024-11-09 23:17:08,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:17:08,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:17:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:17:08,754 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:08,844 INFO L93 Difference]: Finished difference Result 155 states and 181 transitions. [2024-11-09 23:17:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:17:08,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-09 23:17:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:08,846 INFO L225 Difference]: With dead ends: 155 [2024-11-09 23:17:08,846 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 23:17:08,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:17:08,846 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 34 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:08,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 312 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:17:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 23:17:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-09 23:17:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 82 states have internal predecessors, (92), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-09 23:17:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2024-11-09 23:17:08,855 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 46 [2024-11-09 23:17:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:08,855 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2024-11-09 23:17:08,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2024-11-09 23:17:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 23:17:08,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:17:08,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:08,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:17:08,856 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:17:08,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:17:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash 9542682, now seen corresponding path program 1 times [2024-11-09 23:17:08,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:17:08,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965482146] [2024-11-09 23:17:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:17:08,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:17:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:17:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 23:17:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 23:17:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:17:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:17:08,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:17:08,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965482146] [2024-11-09 23:17:08,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965482146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:17:08,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:17:08,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:17:08,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969592462] [2024-11-09 23:17:08,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:17:08,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:17:08,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:17:08,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:17:08,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:17:08,958 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:09,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:17:09,022 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2024-11-09 23:17:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:17:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-09 23:17:09,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:17:09,023 INFO L225 Difference]: With dead ends: 155 [2024-11-09 23:17:09,023 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:17:09,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:17:09,024 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 68 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:17:09,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 157 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:17:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:17:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:17:09,025 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) [2024-11-09 23:17:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:17:09,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2024-11-09 23:17:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:17:09,025 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:17:09,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:17:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:17:09,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:17:09,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:17:09,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:17:09,030 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:17:09,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:17:09,663 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:17:09,703 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not .cse0) (and .cse1 .cse2)) (= 1 ~systemActive~0) (or .cse0 (and (not .cse1) .cse2)))) Eliminated clause: (and (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not .cse0) (and .cse1 .cse2)) (or .cse0 (and (not .cse1) .cse2))))) (= 1 ~systemActive~0)) [2024-11-09 23:17:09,711 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 23:17:09,720 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= |old(~waterLevel~0)| 1)) (and (not (= ~pumpRunning~0 0)) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= ~waterLevel~0 1) .cse0) (and (not (= ~pumpRunning~0 0)) .cse0))) [2024-11-09 23:17:09,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:17:09 BoogieIcfgContainer [2024-11-09 23:17:09,721 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:17:09,722 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:17:09,722 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:17:09,722 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:17:09,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:17:06" (3/4) ... [2024-11-09 23:17:09,728 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:17:09,731 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:17:09,731 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:17:09,731 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:17:09,732 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:17:09,732 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-09 23:17:09,732 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:17:09,737 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-09 23:17:09,738 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:17:09,738 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:17:09,738 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:17:09,739 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:17:09,818 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:17:09,818 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:17:09,818 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:17:09,819 INFO L158 Benchmark]: Toolchain (without parser) took 3836.51ms. Allocated memory was 142.6MB in the beginning and 262.1MB in the end (delta: 119.5MB). Free memory was 88.2MB in the beginning and 195.6MB in the end (delta: -107.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,819 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:17:09,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.25ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 88.0MB in the beginning and 185.5MB in the end (delta: -97.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.53ms. Allocated memory is still 218.1MB. Free memory was 185.5MB in the beginning and 188.0MB in the end (delta: -2.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,819 INFO L158 Benchmark]: Boogie Preprocessor took 47.95ms. Allocated memory is still 218.1MB. Free memory was 188.0MB in the beginning and 185.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,820 INFO L158 Benchmark]: IcfgBuilder took 389.63ms. Allocated memory is still 218.1MB. Free memory was 185.9MB in the beginning and 168.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,820 INFO L158 Benchmark]: TraceAbstraction took 2859.04ms. Allocated memory was 218.1MB in the beginning and 262.1MB in the end (delta: 44.0MB). Free memory was 167.0MB in the beginning and 202.9MB in the end (delta: -35.9MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,820 INFO L158 Benchmark]: Witness Printer took 96.15ms. Allocated memory is still 262.1MB. Free memory was 202.9MB in the beginning and 195.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:17:09,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.25ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 88.0MB in the beginning and 185.5MB in the end (delta: -97.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.53ms. Allocated memory is still 218.1MB. Free memory was 185.5MB in the beginning and 188.0MB in the end (delta: -2.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.95ms. Allocated memory is still 218.1MB. Free memory was 188.0MB in the beginning and 185.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 389.63ms. Allocated memory is still 218.1MB. Free memory was 185.9MB in the beginning and 168.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2859.04ms. Allocated memory was 218.1MB in the beginning and 262.1MB in the end (delta: 44.0MB). Free memory was 167.0MB in the beginning and 202.9MB in the end (delta: -35.9MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. * Witness Printer took 96.15ms. Allocated memory is still 262.1MB. Free memory was 202.9MB in the beginning and 195.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] - GenericResultAtLocation [Line: 848]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] - 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: 623]: 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 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 502 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 490 mSDsluCounter, 2598 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1747 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 851 mSDtfsCounter, 562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=6, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 467 NumberOfCodeBlocks, 467 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 163]: Location Invariant Derived location invariant: null - InvariantResult [Line: 638]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 724]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((waterLevel <= 1) && (1 == systemActive)) || ((pumpRunning != 0) && (1 == systemActive))) Ensures: ((((waterLevel <= 1) && (1 == systemActive)) || ((pumpRunning != 0) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 83]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (1 == systemActive) Ensures: ((1 == systemActive) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 700]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (1 == systemActive) Ensures: (((((1 == systemActive) && (((\old(pumpRunning) != 0) || ((waterLevel <= 1) && (\old(waterLevel) == waterLevel))) || ((pumpRunning != 0) && (\old(waterLevel) == waterLevel)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (\old(waterLevel) != 1))) && ((pumpRunning != 0) || (\old(pumpRunning) == 0))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 153]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 95]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((waterLevel <= 1) && (1 == systemActive)) || ((pumpRunning != 0) && (1 == systemActive))) Ensures: ((((waterLevel <= 1) && (1 == systemActive)) || ((pumpRunning != 0) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 71]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((waterLevel <= 1) && (1 == systemActive)) || ((pumpRunning != 0) && (1 == systemActive))) Ensures: ((((1 == systemActive) && (\old(waterLevel) <= 1)) || ((pumpRunning != 0) && (1 == systemActive))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:17:09,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE