./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product48.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_spec5_product48.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:18:57,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:18:57,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:18:57,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:18:57,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:18:57,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:18:57,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:18:57,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:18:57,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:18:57,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:18:57,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:18:57,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:18:57,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:18:57,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:18:57,945 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:18:57,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:18:57,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:18:57,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:18:57,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:18:57,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:18:57,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:18:57,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:18:57,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:18:57,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:18:57,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:18:57,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:18:57,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:18:57,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:18:57,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:18:57,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:18:57,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:18:57,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:18:57,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:57,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:18:57,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:18:57,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:18:57,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:18:57,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:18:57,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:18:57,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:18:57,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:18:57,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:18:57,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 [2024-11-09 23:18:58,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:18:58,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:18:58,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:18:58,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:18:58,248 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:18:58,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2024-11-09 23:18:59,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:18:59,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:18:59,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2024-11-09 23:19:00,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbdb1077/94dafe3ae05e4f7aab329cce8a1707f0/FLAGa7f0b0ba0 [2024-11-09 23:19:00,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbdb1077/94dafe3ae05e4f7aab329cce8a1707f0 [2024-11-09 23:19:00,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:19:00,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:19:00,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:19:00,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:19:00,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:19:00,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d02822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00, skipping insertion in model container [2024-11-09 23:19:00,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:19:00,606 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_spec5_product48.cil.c[11292,11305] [2024-11-09 23:19:00,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:19:00,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:19:00,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-09 23:19:00,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-11-09 23:19:00,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2024-11-09 23:19:00,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2024-11-09 23:19:00,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [730] [2024-11-09 23:19:00,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [825] [2024-11-09 23:19:00,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [926] [2024-11-09 23:19:00,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [975] [2024-11-09 23:19:00,822 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_spec5_product48.cil.c[11292,11305] [2024-11-09 23:19:00,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:19:00,865 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:19:00,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00 WrapperNode [2024-11-09 23:19:00,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:19:00,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:19:00,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:19:00,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:19:00,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,920 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 216 [2024-11-09 23:19:00,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:19:00,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:19:00,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:19:00,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:19:00,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,963 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 23:19:00,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:19:00,981 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:19:00,981 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:19:00,981 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:19:00,981 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (1/1) ... [2024-11-09 23:19:00,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:19:01,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:01,022 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 23:19:01,028 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 23:19:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:19:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:19:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:19:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:19:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:19:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:19:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:19:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:19:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:19:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:19:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:19:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-09 23:19:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-09 23:19:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-09 23:19:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-09 23:19:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-09 23:19:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-09 23:19:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:19:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:19:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:19:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:19:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:19:01,170 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:19:01,172 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:19:01,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L808-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2024-11-09 23:19:01,361 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L923-1: main_#res#1 := main_~retValue_acc~9#1; [2024-11-09 23:19:01,362 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1007-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2024-11-09 23:19:01,399 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L704-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; [2024-11-09 23:19:01,400 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L822-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2024-11-09 23:19:01,403 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L649: #res := ~retValue_acc~4; [2024-11-09 23:19:01,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L640: #res#1 := ~retValue_acc~3#1; [2024-11-09 23:19:01,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L776-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2024-11-09 23:19:01,441 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-09 23:19:01,442 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:19:01,454 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:19:01,454 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:19:01,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:19:01 BoogieIcfgContainer [2024-11-09 23:19:01,455 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:19:01,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:19:01,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:19:01,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:19:01,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:19:00" (1/3) ... [2024-11-09 23:19:01,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa73307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:19:01, skipping insertion in model container [2024-11-09 23:19:01,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:00" (2/3) ... [2024-11-09 23:19:01,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa73307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:19:01, skipping insertion in model container [2024-11-09 23:19:01,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:19:01" (3/3) ... [2024-11-09 23:19:01,466 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2024-11-09 23:19:01,480 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:19:01,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:19:01,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:19:01,542 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;@41a42f00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:19:01,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:19:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 92 states have internal predecessors, (111), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 23:19:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 23:19:01,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:01,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:01,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:01,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:01,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1872346473, now seen corresponding path program 1 times [2024-11-09 23:19:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:01,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792267560] [2024-11-09 23:19:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:01,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 23:19:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:01,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:19:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:01,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:01,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792267560] [2024-11-09 23:19:01,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792267560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:01,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:01,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:19:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958916708] [2024-11-09 23:19:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:01,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:19:01,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:19:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:19:01,789 INFO L87 Difference]: Start difference. First operand has 110 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 92 states have internal predecessors, (111), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:19:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:01,821 INFO L93 Difference]: Finished difference Result 210 states and 279 transitions. [2024-11-09 23:19:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:19:01,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-09 23:19:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:01,833 INFO L225 Difference]: With dead ends: 210 [2024-11-09 23:19:01,833 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 23:19:01,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 23:19:01,841 INFO L432 NwaCegarLoop]: 136 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, 136 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 23:19:01,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:19:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 23:19:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-09 23:19:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 82 states have internal predecessors, (95), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 23:19:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2024-11-09 23:19:01,885 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 34 [2024-11-09 23:19:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:01,886 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2024-11-09 23:19:01,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:19:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2024-11-09 23:19:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 23:19:01,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:01,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:01,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:19:01,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:01,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1342571045, now seen corresponding path program 1 times [2024-11-09 23:19:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:01,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437652339] [2024-11-09 23:19:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:01,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:19:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:02,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437652339] [2024-11-09 23:19:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437652339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:02,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:19:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760856876] [2024-11-09 23:19:02,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:02,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:19:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:19:02,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:19:02,087 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 23:19:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:02,142 INFO L93 Difference]: Finished difference Result 279 states and 363 transitions. [2024-11-09 23:19:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:19:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 39 [2024-11-09 23:19:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:02,146 INFO L225 Difference]: With dead ends: 279 [2024-11-09 23:19:02,146 INFO L226 Difference]: Without dead ends: 188 [2024-11-09 23:19:02,148 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 23:19:02,149 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 114 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:02,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:19:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-09 23:19:02,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2024-11-09 23:19:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 135 states have (on average 1.3037037037037038) internal successors, (176), 150 states have internal predecessors, (176), 32 states have call successors, (32), 18 states have call predecessors, (32), 16 states have return successors, (30), 23 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 23:19:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2024-11-09 23:19:02,182 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 238 transitions. Word has length 39 [2024-11-09 23:19:02,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:02,183 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 238 transitions. [2024-11-09 23:19:02,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 23:19:02,184 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 238 transitions. [2024-11-09 23:19:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 23:19:02,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:02,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:02,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:19:02,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:02,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -540236605, now seen corresponding path program 1 times [2024-11-09 23:19:02,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:02,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822966033] [2024-11-09 23:19:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:02,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 23:19:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 23:19:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 23:19:02,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:02,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822966033] [2024-11-09 23:19:02,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822966033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:02,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:02,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:19:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068064172] [2024-11-09 23:19:02,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:02,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:19:02,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:02,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:19:02,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:19:02,358 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 23:19:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:02,565 INFO L93 Difference]: Finished difference Result 481 states and 646 transitions. [2024-11-09 23:19:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:19:02,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-09 23:19:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:02,570 INFO L225 Difference]: With dead ends: 481 [2024-11-09 23:19:02,570 INFO L226 Difference]: Without dead ends: 305 [2024-11-09 23:19:02,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:19:02,575 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 95 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:02,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 541 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:19:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-09 23:19:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2024-11-09 23:19:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 225 states have (on average 1.2577777777777779) internal successors, (283), 242 states have internal predecessors, (283), 48 states have call successors, (48), 34 states have call predecessors, (48), 30 states have return successors, (60), 41 states have call predecessors, (60), 44 states have call successors, (60) [2024-11-09 23:19:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 391 transitions. [2024-11-09 23:19:02,623 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 391 transitions. Word has length 42 [2024-11-09 23:19:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:02,623 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 391 transitions. [2024-11-09 23:19:02,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 23:19:02,624 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 391 transitions. [2024-11-09 23:19:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:19:02,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:02,629 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:02,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:19:02,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:02,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:02,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1201107253, now seen corresponding path program 1 times [2024-11-09 23:19:02,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:02,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33997977] [2024-11-09 23:19:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:19:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:19:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:02,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33997977] [2024-11-09 23:19:02,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33997977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:02,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:02,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:19:02,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540613688] [2024-11-09 23:19:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:02,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:19:02,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:19:02,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:19:02,849 INFO L87 Difference]: Start difference. First operand 304 states and 391 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:19:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:03,072 INFO L93 Difference]: Finished difference Result 679 states and 926 transitions. [2024-11-09 23:19:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:19:03,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2024-11-09 23:19:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:03,077 INFO L225 Difference]: With dead ends: 679 [2024-11-09 23:19:03,077 INFO L226 Difference]: Without dead ends: 383 [2024-11-09 23:19:03,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:19:03,084 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 66 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:03,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 461 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:19:03,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-09 23:19:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 356. [2024-11-09 23:19:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 267 states have (on average 1.247191011235955) internal successors, (333), 284 states have internal predecessors, (333), 52 states have call successors, (52), 34 states have call predecessors, (52), 36 states have return successors, (78), 49 states have call predecessors, (78), 48 states have call successors, (78) [2024-11-09 23:19:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 463 transitions. [2024-11-09 23:19:03,173 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 463 transitions. Word has length 61 [2024-11-09 23:19:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:03,175 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 463 transitions. [2024-11-09 23:19:03,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:19:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 463 transitions. [2024-11-09 23:19:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 23:19:03,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:03,178 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:03,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:19:03,179 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:03,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash -963850772, now seen corresponding path program 1 times [2024-11-09 23:19:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:03,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490584286] [2024-11-09 23:19:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:19:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:19:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:19:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:03,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490584286] [2024-11-09 23:19:03,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490584286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:03,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:03,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:19:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777004817] [2024-11-09 23:19:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:03,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:19:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:03,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:19:03,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:19:03,283 INFO L87 Difference]: Start difference. First operand 356 states and 463 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:19:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:03,421 INFO L93 Difference]: Finished difference Result 586 states and 731 transitions. [2024-11-09 23:19:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:19:03,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-11-09 23:19:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:03,424 INFO L225 Difference]: With dead ends: 586 [2024-11-09 23:19:03,425 INFO L226 Difference]: Without dead ends: 319 [2024-11-09 23:19:03,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 23:19:03,427 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 73 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:03,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 206 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:19:03,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-09 23:19:03,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 316. [2024-11-09 23:19:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 239 states have (on average 1.2594142259414225) internal successors, (301), 256 states have internal predecessors, (301), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-11-09 23:19:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 395 transitions. [2024-11-09 23:19:03,467 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 395 transitions. Word has length 58 [2024-11-09 23:19:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:03,468 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 395 transitions. [2024-11-09 23:19:03,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:19:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 395 transitions. [2024-11-09 23:19:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:19:03,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:03,470 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:03,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:19:03,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:03,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1455843798, now seen corresponding path program 1 times [2024-11-09 23:19:03,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:03,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257453198] [2024-11-09 23:19:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:03,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:19:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:19:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:03,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:03,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257453198] [2024-11-09 23:19:03,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257453198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:03,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:03,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:19:03,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981830334] [2024-11-09 23:19:03,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:03,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:19:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:19:03,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:19:03,644 INFO L87 Difference]: Start difference. First operand 316 states and 395 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:19:03,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:03,891 INFO L93 Difference]: Finished difference Result 639 states and 812 transitions. [2024-11-09 23:19:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:19:03,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2024-11-09 23:19:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:03,895 INFO L225 Difference]: With dead ends: 639 [2024-11-09 23:19:03,896 INFO L226 Difference]: Without dead ends: 331 [2024-11-09 23:19:03,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:19:03,900 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 206 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:03,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 412 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:19:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-09 23:19:03,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 320. [2024-11-09 23:19:03,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 243 states have (on average 1.2551440329218106) internal successors, (305), 260 states have internal predecessors, (305), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-11-09 23:19:03,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 399 transitions. [2024-11-09 23:19:03,928 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 399 transitions. Word has length 61 [2024-11-09 23:19:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:03,928 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 399 transitions. [2024-11-09 23:19:03,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:19:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 399 transitions. [2024-11-09 23:19:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:19:03,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:03,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:03,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:19:03,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:03,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1433211544, now seen corresponding path program 1 times [2024-11-09 23:19:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:03,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332218019] [2024-11-09 23:19:03,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:03,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:03,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 23:19:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:19:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:04,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332218019] [2024-11-09 23:19:04,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332218019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:04,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:04,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:19:04,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267411184] [2024-11-09 23:19:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:04,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:19:04,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:19:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:19:04,038 INFO L87 Difference]: Start difference. First operand 320 states and 399 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:19:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:04,280 INFO L93 Difference]: Finished difference Result 908 states and 1175 transitions. [2024-11-09 23:19:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:19:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2024-11-09 23:19:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:04,284 INFO L225 Difference]: With dead ends: 908 [2024-11-09 23:19:04,284 INFO L226 Difference]: Without dead ends: 596 [2024-11-09 23:19:04,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 23:19:04,286 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 238 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:04,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 328 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:19:04,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-09 23:19:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 588. [2024-11-09 23:19:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 445 states have (on average 1.2269662921348314) internal successors, (546), 471 states have internal predecessors, (546), 77 states have call successors, (77), 63 states have call predecessors, (77), 65 states have return successors, (115), 76 states have call predecessors, (115), 77 states have call successors, (115) [2024-11-09 23:19:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 738 transitions. [2024-11-09 23:19:04,336 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 738 transitions. Word has length 61 [2024-11-09 23:19:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:04,337 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 738 transitions. [2024-11-09 23:19:04,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:19:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 738 transitions. [2024-11-09 23:19:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:19:04,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:04,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:04,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:19:04,339 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:04,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash 377846090, now seen corresponding path program 1 times [2024-11-09 23:19:04,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:04,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111284420] [2024-11-09 23:19:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:04,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:19:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:19:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 23:19:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:19:04,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:04,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111284420] [2024-11-09 23:19:04,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111284420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:04,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:04,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:19:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145949918] [2024-11-09 23:19:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:04,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:19:04,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:19:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:19:04,549 INFO L87 Difference]: Start difference. First operand 588 states and 738 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 23:19:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:05,246 INFO L93 Difference]: Finished difference Result 1796 states and 2349 transitions. [2024-11-09 23:19:05,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 23:19:05,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 65 [2024-11-09 23:19:05,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:05,255 INFO L225 Difference]: With dead ends: 1796 [2024-11-09 23:19:05,256 INFO L226 Difference]: Without dead ends: 1320 [2024-11-09 23:19:05,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:19:05,262 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 457 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:05,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 654 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 23:19:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-09 23:19:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1145. [2024-11-09 23:19:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 864 states have (on average 1.224537037037037) internal successors, (1058), 921 states have internal predecessors, (1058), 152 states have call successors, (152), 112 states have call predecessors, (152), 128 states have return successors, (230), 150 states have call predecessors, (230), 152 states have call successors, (230) [2024-11-09 23:19:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1440 transitions. [2024-11-09 23:19:05,345 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1440 transitions. Word has length 65 [2024-11-09 23:19:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:05,346 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1440 transitions. [2024-11-09 23:19:05,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 23:19:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1440 transitions. [2024-11-09 23:19:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 23:19:05,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:05,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:05,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:19:05,348 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:05,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1639040410, now seen corresponding path program 1 times [2024-11-09 23:19:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001046463] [2024-11-09 23:19:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:19:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:19:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:19:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 23:19:05,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:05,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001046463] [2024-11-09 23:19:05,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001046463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:19:05,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:19:05,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:19:05,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339439802] [2024-11-09 23:19:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:19:05,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:19:05,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:19:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:19:05,465 INFO L87 Difference]: Start difference. First operand 1145 states and 1440 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 23:19:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:05,844 INFO L93 Difference]: Finished difference Result 1944 states and 2435 transitions. [2024-11-09 23:19:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:19:05,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 95 [2024-11-09 23:19:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:05,849 INFO L225 Difference]: With dead ends: 1944 [2024-11-09 23:19:05,850 INFO L226 Difference]: Without dead ends: 807 [2024-11-09 23:19:05,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:19:05,854 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 271 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:05,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 385 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:19:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-09 23:19:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 768. [2024-11-09 23:19:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 583 states have (on average 1.2126929674099485) internal successors, (707), 622 states have internal predecessors, (707), 100 states have call successors, (100), 76 states have call predecessors, (100), 84 states have return successors, (140), 99 states have call predecessors, (140), 100 states have call successors, (140) [2024-11-09 23:19:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 947 transitions. [2024-11-09 23:19:05,912 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 947 transitions. Word has length 95 [2024-11-09 23:19:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:05,913 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 947 transitions. [2024-11-09 23:19:05,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 23:19:05,913 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 947 transitions. [2024-11-09 23:19:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:19:05,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:05,915 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:05,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:19:05,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:05,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash -134534942, now seen corresponding path program 1 times [2024-11-09 23:19:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722863502] [2024-11-09 23:19:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:05,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:19:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:19:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:19:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:19:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:19:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:19:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:19:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722863502] [2024-11-09 23:19:06,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722863502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:19:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102690286] [2024-11-09 23:19:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:06,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:06,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:19:06,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:19:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:06,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:19:06,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:19:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:19:06,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:19:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:19:06,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102690286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:19:06,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:19:06,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-11-09 23:19:06,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514405015] [2024-11-09 23:19:06,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:19:06,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:19:06,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:06,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:19:06,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:19:06,710 INFO L87 Difference]: Start difference. First operand 768 states and 947 transitions. Second operand has 15 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-09 23:19:08,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:08,213 INFO L93 Difference]: Finished difference Result 1769 states and 2246 transitions. [2024-11-09 23:19:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 23:19:08,214 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 109 [2024-11-09 23:19:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:08,221 INFO L225 Difference]: With dead ends: 1769 [2024-11-09 23:19:08,221 INFO L226 Difference]: Without dead ends: 1093 [2024-11-09 23:19:08,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 244 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=621, Invalid=2459, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 23:19:08,226 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 456 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:08,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1400 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:19:08,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-09 23:19:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 865. [2024-11-09 23:19:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 648 states have (on average 1.191358024691358) internal successors, (772), 699 states have internal predecessors, (772), 117 states have call successors, (117), 97 states have call predecessors, (117), 99 states have return successors, (143), 105 states have call predecessors, (143), 117 states have call successors, (143) [2024-11-09 23:19:08,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1032 transitions. [2024-11-09 23:19:08,302 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1032 transitions. Word has length 109 [2024-11-09 23:19:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:08,302 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1032 transitions. [2024-11-09 23:19:08,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-09 23:19:08,303 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1032 transitions. [2024-11-09 23:19:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-09 23:19:08,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:08,307 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:08,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:19:08,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:19:08,512 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:08,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash -123068988, now seen corresponding path program 1 times [2024-11-09 23:19:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264103733] [2024-11-09 23:19:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:19:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:19:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:19:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:19:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-09 23:19:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-09 23:19:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-09 23:19:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-09 23:19:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 109 proven. 13 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 23:19:08,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:08,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264103733] [2024-11-09 23:19:08,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264103733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:19:08,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212190883] [2024-11-09 23:19:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:08,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:08,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:08,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:19:08,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:19:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:09,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 23:19:09,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:19:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 162 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 23:19:09,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:19:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 82 proven. 42 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 23:19:09,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212190883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:19:09,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:19:09,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 11] total 29 [2024-11-09 23:19:09,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461531660] [2024-11-09 23:19:09,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:19:09,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 23:19:09,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:09,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 23:19:09,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2024-11-09 23:19:09,860 INFO L87 Difference]: Start difference. First operand 865 states and 1032 transitions. Second operand has 29 states, 29 states have (on average 7.793103448275862) internal successors, (226), 23 states have internal predecessors, (226), 10 states have call successors, (38), 8 states have call predecessors, (38), 12 states have return successors, (41), 11 states have call predecessors, (41), 10 states have call successors, (41) [2024-11-09 23:19:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:12,083 INFO L93 Difference]: Finished difference Result 2622 states and 3236 transitions. [2024-11-09 23:19:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 23:19:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.793103448275862) internal successors, (226), 23 states have internal predecessors, (226), 10 states have call successors, (38), 8 states have call predecessors, (38), 12 states have return successors, (41), 11 states have call predecessors, (41), 10 states have call successors, (41) Word has length 200 [2024-11-09 23:19:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:12,093 INFO L225 Difference]: With dead ends: 2622 [2024-11-09 23:19:12,094 INFO L226 Difference]: Without dead ends: 1765 [2024-11-09 23:19:12,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 434 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1013, Invalid=4687, Unknown=0, NotChecked=0, Total=5700 [2024-11-09 23:19:12,099 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1493 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:12,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1350 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:19:12,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2024-11-09 23:19:12,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1718. [2024-11-09 23:19:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1295 states have (on average 1.1428571428571428) internal successors, (1480), 1379 states have internal predecessors, (1480), 233 states have call successors, (233), 201 states have call predecessors, (233), 189 states have return successors, (258), 198 states have call predecessors, (258), 233 states have call successors, (258) [2024-11-09 23:19:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 1971 transitions. [2024-11-09 23:19:12,213 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 1971 transitions. Word has length 200 [2024-11-09 23:19:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:12,214 INFO L471 AbstractCegarLoop]: Abstraction has 1718 states and 1971 transitions. [2024-11-09 23:19:12,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.793103448275862) internal successors, (226), 23 states have internal predecessors, (226), 10 states have call successors, (38), 8 states have call predecessors, (38), 12 states have return successors, (41), 11 states have call predecessors, (41), 10 states have call successors, (41) [2024-11-09 23:19:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 1971 transitions. [2024-11-09 23:19:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-09 23:19:12,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:12,221 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:12,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 23:19:12,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 23:19:12,426 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:12,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:12,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1334991806, now seen corresponding path program 1 times [2024-11-09 23:19:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:12,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829387928] [2024-11-09 23:19:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:19:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:19:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:19:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:19:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:19:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:19:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 23:19:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-09 23:19:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-09 23:19:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-09 23:19:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-09 23:19:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 46 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 23:19:12,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:12,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829387928] [2024-11-09 23:19:12,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829387928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:19:12,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381040636] [2024-11-09 23:19:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:12,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:12,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:19:12,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:19:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:12,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 23:19:12,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:19:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 200 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 23:19:13,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:19:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 104 proven. 54 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 23:19:13,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381040636] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:19:13,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:19:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 22 [2024-11-09 23:19:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675792013] [2024-11-09 23:19:13,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:19:13,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 23:19:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:13,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 23:19:13,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:19:13,479 INFO L87 Difference]: Start difference. First operand 1718 states and 1971 transitions. Second operand has 22 states, 22 states have (on average 9.954545454545455) internal successors, (219), 15 states have internal predecessors, (219), 7 states have call successors, (48), 8 states have call predecessors, (48), 11 states have return successors, (41), 9 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-09 23:19:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:15,183 INFO L93 Difference]: Finished difference Result 3388 states and 3899 transitions. [2024-11-09 23:19:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 23:19:15,184 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.954545454545455) internal successors, (219), 15 states have internal predecessors, (219), 7 states have call successors, (48), 8 states have call predecessors, (48), 11 states have return successors, (41), 9 states have call predecessors, (41), 7 states have call successors, (41) Word has length 216 [2024-11-09 23:19:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:15,195 INFO L225 Difference]: With dead ends: 3388 [2024-11-09 23:19:15,195 INFO L226 Difference]: Without dead ends: 1846 [2024-11-09 23:19:15,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=654, Invalid=2652, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 23:19:15,201 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 567 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:15,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 520 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:19:15,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-09 23:19:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1648. [2024-11-09 23:19:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1249 states have (on average 1.1369095276220977) internal successors, (1420), 1323 states have internal predecessors, (1420), 207 states have call successors, (207), 193 states have call predecessors, (207), 191 states have return successors, (232), 192 states have call predecessors, (232), 207 states have call successors, (232) [2024-11-09 23:19:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 1859 transitions. [2024-11-09 23:19:15,350 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 1859 transitions. Word has length 216 [2024-11-09 23:19:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:15,351 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 1859 transitions. [2024-11-09 23:19:15,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.954545454545455) internal successors, (219), 15 states have internal predecessors, (219), 7 states have call successors, (48), 8 states have call predecessors, (48), 11 states have return successors, (41), 9 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-09 23:19:15,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 1859 transitions. [2024-11-09 23:19:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-09 23:19:15,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:15,356 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:15,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:19:15,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:15,557 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:15,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1746715958, now seen corresponding path program 1 times [2024-11-09 23:19:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:15,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188163596] [2024-11-09 23:19:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:15,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:19:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:19:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:19:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:19:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:19:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:19:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 23:19:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 23:19:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-09 23:19:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-09 23:19:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-09 23:19:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-09 23:19:15,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188163596] [2024-11-09 23:19:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188163596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:19:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117523005] [2024-11-09 23:19:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:15,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:15,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:19:15,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:19:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:16,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 23:19:16,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:19:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 142 proven. 26 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-09 23:19:16,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:19:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 103 proven. 45 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 23:19:16,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117523005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:19:16,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:19:16,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 13] total 28 [2024-11-09 23:19:16,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979179466] [2024-11-09 23:19:16,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:19:16,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 23:19:16,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:16,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 23:19:16,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2024-11-09 23:19:16,986 INFO L87 Difference]: Start difference. First operand 1648 states and 1859 transitions. Second operand has 28 states, 28 states have (on average 9.285714285714286) internal successors, (260), 22 states have internal predecessors, (260), 14 states have call successors, (51), 12 states have call predecessors, (51), 15 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2024-11-09 23:19:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:21,190 INFO L93 Difference]: Finished difference Result 3736 states and 4261 transitions. [2024-11-09 23:19:21,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-09 23:19:21,191 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.285714285714286) internal successors, (260), 22 states have internal predecessors, (260), 14 states have call successors, (51), 12 states have call predecessors, (51), 15 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) Word has length 217 [2024-11-09 23:19:21,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:21,201 INFO L225 Difference]: With dead ends: 3736 [2024-11-09 23:19:21,202 INFO L226 Difference]: Without dead ends: 2276 [2024-11-09 23:19:21,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 503 SyntacticMatches, 7 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5517 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2741, Invalid=14029, Unknown=0, NotChecked=0, Total=16770 [2024-11-09 23:19:21,209 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 2242 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 5688 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 6460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 5688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:21,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 2124 Invalid, 6460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 5688 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 23:19:21,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2024-11-09 23:19:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2028. [2024-11-09 23:19:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1539 states have (on average 1.1338531513970111) internal successors, (1745), 1615 states have internal predecessors, (1745), 257 states have call successors, (257), 241 states have call predecessors, (257), 231 states have return successors, (276), 235 states have call predecessors, (276), 257 states have call successors, (276) [2024-11-09 23:19:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2278 transitions. [2024-11-09 23:19:21,389 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2278 transitions. Word has length 217 [2024-11-09 23:19:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:21,389 INFO L471 AbstractCegarLoop]: Abstraction has 2028 states and 2278 transitions. [2024-11-09 23:19:21,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.285714285714286) internal successors, (260), 22 states have internal predecessors, (260), 14 states have call successors, (51), 12 states have call predecessors, (51), 15 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2024-11-09 23:19:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2278 transitions. [2024-11-09 23:19:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-09 23:19:21,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:19:21,397 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:21,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:19:21,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:21,598 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:19:21,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:19:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1063129292, now seen corresponding path program 1 times [2024-11-09 23:19:21,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:19:21,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888648765] [2024-11-09 23:19:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:21,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:19:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 23:19:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 23:19:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:19:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:19:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:19:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:19:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:19:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:19:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:19:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 23:19:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 23:19:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-09 23:19:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-09 23:19:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:19:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-09 23:19:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-09 23:19:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-09 23:19:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:19:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-09 23:19:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 111 proven. 35 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-11-09 23:19:22,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:19:22,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888648765] [2024-11-09 23:19:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888648765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:19:22,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636514729] [2024-11-09 23:19:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:19:22,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:19:22,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:19:22,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:19:22,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:19:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:19:22,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 23:19:22,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:19:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 226 proven. 18 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 23:19:22,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:19:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 142 proven. 77 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 23:19:23,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636514729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:19:23,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:19:23,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 15] total 32 [2024-11-09 23:19:23,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265781635] [2024-11-09 23:19:23,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:19:23,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 23:19:23,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:19:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 23:19:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:19:23,212 INFO L87 Difference]: Start difference. First operand 2028 states and 2278 transitions. Second operand has 32 states, 32 states have (on average 8.78125) internal successors, (281), 27 states have internal predecessors, (281), 13 states have call successors, (49), 11 states have call predecessors, (49), 15 states have return successors, (53), 13 states have call predecessors, (53), 13 states have call successors, (53) [2024-11-09 23:19:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:19:25,196 INFO L93 Difference]: Finished difference Result 3640 states and 4164 transitions. [2024-11-09 23:19:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 23:19:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.78125) internal successors, (281), 27 states have internal predecessors, (281), 13 states have call successors, (49), 11 states have call predecessors, (49), 15 states have return successors, (53), 13 states have call predecessors, (53), 13 states have call successors, (53) Word has length 253 [2024-11-09 23:19:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:19:25,201 INFO L225 Difference]: With dead ends: 3640 [2024-11-09 23:19:25,201 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:19:25,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 538 SyntacticMatches, 6 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1531 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1254, Invalid=5066, Unknown=0, NotChecked=0, Total=6320 [2024-11-09 23:19:25,210 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 1223 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:19:25,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 872 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:19:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:19:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:19:25,211 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 23:19:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:19:25,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2024-11-09 23:19:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:19:25,214 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:19:25,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.78125) internal successors, (281), 27 states have internal predecessors, (281), 13 states have call successors, (49), 11 states have call predecessors, (49), 15 states have return successors, (53), 13 states have call predecessors, (53), 13 states have call successors, (53) [2024-11-09 23:19:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:19:25,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:19:25,217 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:19:25,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 23:19:25,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 23:19:25,420 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:19:25,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:19:46,222 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:19:46,240 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse6 (<= ~waterLevel~0 1) .cse1 .cse3 .cse4) (and .cse6 .cse5 .cse1 .cse2 .cse4)))) Eliminated clause: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 2 ~waterLevel~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 (<= ~waterLevel~0 1) .cse3 .cse5) (and .cse0 .cse1 .cse3 (<= ~waterLevel~0 2) .cse5) (and .cse0 .cse2 .cse4 .cse3))) [2024-11-09 23:19:46,267 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (let ((.cse6 (<= 1 ~pumpRunning~0)) (.cse4 (= |old(~methaneLevelCritical~0)| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse5 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2) (and .cse6 .cse4 (<= 2 ~waterLevel~0) .cse5 .cse2) (and .cse6 .cse4 .cse5 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse5 .cse2)))) Eliminated clause: (let ((.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse4 (= 2 ~waterLevel~0) .cse5 .cse6) (and .cse0 .cse5 .cse6 .cse2) (and .cse0 .cse1 .cse6 .cse2) (and .cse0 .cse5 .cse2 .cse3))) [2024-11-09 23:19:46,289 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse3 (= 1 ~systemActive~0)) (.cse4 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse6 (= |old(~waterLevel~0)| 2)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse7 (<= 1 |old(~switchedOnBeforeTS~0)|)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse8 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse2) (and .cse5 .cse3 .cse4 .cse2) (and .cse5 .cse1 .cse6) (and .cse0 .cse7 .cse2 .cse8) (and .cse5 .cse1 (<= |old(~waterLevel~0)| 1)) (and .cse5 .cse8 .cse6) (and .cse0 .cse8 .cse6) (and .cse5 .cse7 .cse2 .cse8))) (or .cse3 (< |old(~pumpRunning~0)| 1)) (= |old(~waterLevel~0)| ~waterLevel~0) (or .cse4 (not .cse1)))) Eliminated clause: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse8 (= 1 ~systemActive~0))) (and (let ((.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse4 .cse2) (and .cse3 .cse1 .cse6) (and .cse3 .cse6 .cse4 .cse5) (and .cse7 .cse6 .cse8 .cse4) (and .cse0 (<= ~waterLevel~0 1) .cse2) (and .cse3 .cse0 .cse1) (and .cse7 .cse0 .cse8 .cse4))) (or .cse7 (not .cse2)) (or (< ~pumpRunning~0 1) .cse8))) [2024-11-09 23:19:46,319 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse6 (= 0 ~systemActive~0)) (.cse3 (= |old(~waterLevel~0)| 2)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 1 ~systemActive~0)) (.cse7 (<= |old(~waterLevel~0)| 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse6 .cse7) (and .cse0 .cse1 .cse6 .cse3) (and .cse0 .cse5 .cse6 (<= |old(~waterLevel~0)| 2)) (and .cse0 .cse5 .cse2 .cse7) (and .cse0 .cse5 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse7 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 .cse7))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse6 (<= 1 ~pumpRunning~0)) (.cse2 (= 2 ~waterLevel~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse7 (<= ~waterLevel~0 1)) (.cse4 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse4) (and .cse0 .cse2 .cse5 .cse4) (and .cse6 .cse5 .cse7 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse7 .cse3) (and .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse5 .cse7 .cse4) (and .cse0 .cse1 .cse7 .cse4) (and .cse0 .cse5 (<= ~waterLevel~0 2) .cse3))) [2024-11-09 23:19:46,336 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and .cse2 .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|)) (and .cse2 .cse0 .cse1))) (or (and (= 2 ~waterLevel~0) .cse1) (< ~waterLevel~0 2)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (and (or (and .cse0 (= 2 ~waterLevel~0)) (< ~waterLevel~0 2)) (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and .cse0 .cse2 .cse1) (and (<= 1 ~pumpRunning~0) .cse2 .cse1 (<= 1 ~switchedOnBeforeTS~0)))))) [2024-11-09 23:19:46,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:19:46 BoogieIcfgContainer [2024-11-09 23:19:46,370 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:19:46,370 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:19:46,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:19:46,371 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:19:46,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:19:01" (3/4) ... [2024-11-09 23:19:46,373 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:19:46,377 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-09 23:19:46,378 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:19:46,378 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:19:46,378 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:19:46,378 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:19:46,378 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:19:46,379 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:19:46,382 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-09 23:19:46,382 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-09 23:19:46,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-11-09 23:19:46,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:19:46,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:19:46,394 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:19:46,394 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:19:46,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:19:46,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:19:46,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:19:46,516 INFO L158 Benchmark]: Toolchain (without parser) took 46193.40ms. Allocated memory was 155.2MB in the beginning and 612.4MB in the end (delta: 457.2MB). Free memory was 85.9MB in the beginning and 454.1MB in the end (delta: -368.2MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,517 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 155.2MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:19:46,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.90ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 122.8MB in the end (delta: -37.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.05ms. Allocated memory is still 155.2MB. Free memory was 122.8MB in the beginning and 120.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,518 INFO L158 Benchmark]: Boogie Preprocessor took 58.83ms. Allocated memory is still 155.2MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,519 INFO L158 Benchmark]: IcfgBuilder took 474.96ms. Allocated memory is still 155.2MB. Free memory was 117.9MB in the beginning and 97.6MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,519 INFO L158 Benchmark]: TraceAbstraction took 44912.31ms. Allocated memory was 155.2MB in the beginning and 612.4MB in the end (delta: 457.2MB). Free memory was 96.9MB in the beginning and 462.4MB in the end (delta: -365.5MB). Peak memory consumption was 348.2MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,519 INFO L158 Benchmark]: Witness Printer took 145.05ms. Allocated memory is still 612.4MB. Free memory was 462.4MB in the beginning and 454.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 23:19:46,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 155.2MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.90ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 122.8MB in the end (delta: -37.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.05ms. Allocated memory is still 155.2MB. Free memory was 122.8MB in the beginning and 120.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.83ms. Allocated memory is still 155.2MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 474.96ms. Allocated memory is still 155.2MB. Free memory was 117.9MB in the beginning and 97.6MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 44912.31ms. Allocated memory was 155.2MB in the beginning and 612.4MB in the end (delta: 457.2MB). Free memory was 96.9MB in the beginning and 462.4MB in the end (delta: -365.5MB). Peak memory consumption was 348.2MB. Max. memory is 16.1GB. * Witness Printer took 145.05ms. Allocated memory is still 612.4MB. Free memory was 462.4MB in the beginning and 454.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 730]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [730] - GenericResultAtLocation [Line: 825]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [825] - GenericResultAtLocation [Line: 926]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [926] - GenericResultAtLocation [Line: 975]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [975] * 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: 420]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.9s, OverallIterations: 14, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7577 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7501 mSDsluCounter, 9644 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7941 mSDsCounter, 2614 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14943 IncrementalHoareTripleChecker+Invalid, 17557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2614 mSolverCounterUnsat, 1703 mSDtfsCounter, 14943 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2762 GetRequests, 2289 SyntacticMatches, 21 SemanticMatches, 452 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10312 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2028occurred in iteration=13, InterpolantAutomatonStates: 364, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 989 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 2506 NumberOfCodeBlocks, 2506 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3477 ConstructedInterpolants, 0 QuantifiedInterpolants, 7325 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2871 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 3150/3556 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: 837]: Location Invariant Derived location invariant: null - InvariantResult [Line: 441]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 624]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive)) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= \old(pumpRunning))) || (((2 == waterLevel) && (1 == systemActive)) && (1 <= \old(pumpRunning)))) || ((1 <= methaneLevelCritical) && (1 <= \old(pumpRunning)))) && (pumpRunning == 0)) && ((1 < waterLevel) || ((1 == systemActive) && (1 <= switchedOnBeforeTS)))) && (((methaneLevelCritical == 0) || (waterLevel < 2)) || (((1 <= methaneLevelCritical) && (2 == waterLevel)) && (1 == systemActive)))) && ((((((head == \old(head)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 540]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) && (((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 758]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 2)) && (0 == systemActive)) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((((((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (waterLevel <= 2)) && (0 == systemActive))) || ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) && (waterLevel <= 2))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 827]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 513]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((((((((((1 <= methaneLevelCritical) && (2 == waterLevel)) && (0 == systemActive)) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((methaneLevelCritical == 0) && (waterLevel <= 2)) && (0 == systemActive))) || (((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0))) || ((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || (((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (0 == systemActive))) || (((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 == waterLevel))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) && ((pumpRunning == 0) || (0 != systemActive))) && ((pumpRunning < 1) || (1 == systemActive))) Ensures: (((((((((((0 < \old(waterLevel)) || (\old(waterLevel) == waterLevel)) && (((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel)))) && ((((pumpRunning == 0) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (methaneLevelCritical < 1))) && ((((((((((((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 == systemActive)) && (\old(waterLevel) == 2)) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || ((((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 == systemActive)) && (\old(waterLevel) <= 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2))) || ((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || ((((1 <= methaneLevelCritical) && (1 == systemActive)) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2))) || ((((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || (((((1 <= methaneLevelCritical) && (1 == systemActive)) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical < 1))) && (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && (((waterLevel < 1) || (\old(waterLevel) != 1)) || (\old(pumpRunning) < 1))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((pumpRunning == \old(pumpRunning)) && (1 <= switchedOnBeforeTS)) || (methaneLevelCritical != 0)) || (\old(pumpRunning) < 1))) && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 746]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (0 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (0 == systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((((long long) \old(waterLevel) + 1) == waterLevel) || (0 < \old(waterLevel))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && ((((((((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(waterLevel) == 2)) || (((methaneLevelCritical == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || ((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) == 2))) || (((1 <= methaneLevelCritical) && (0 == systemActive)) && (\old(waterLevel) == 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) <= 1))) || (((1 <= methaneLevelCritical) && (0 == systemActive)) && (\old(waterLevel) <= 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) == 2))) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(waterLevel) <= 1)))) && ((pumpRunning == 0) || (0 != systemActive))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 548]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((((pumpRunning == 0) && (2 == waterLevel)) || (waterLevel < 2)) && (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)))) Ensures: ((((((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(pumpRunning) <= 0)) || (waterLevel < 2)) || (((pumpRunning == 0) && (2 == waterLevel)) && (\old(pumpRunning) == 0))) && ((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning)))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)))) && ((waterLevel != 1) || (pumpRunning == \old(pumpRunning)))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (0 < waterLevel))) && ((((((head == \old(head)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 643]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 2)) && (0 == systemActive)) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((((((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 2)) && (0 == systemActive)) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 2)) && (0 == systemActive))) && (pumpRunning == \result)) && (((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 632]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) Ensures: (((methaneLevelCritical == \result) && (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 == waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)))) && (((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:19:46,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE