./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_productSimulator.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 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:32:06,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:32:06,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:32:06,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:32:06,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:32:06,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:32:06,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:32:06,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:32:06,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:32:06,147 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:32:06,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:32:06,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:32:06,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:32:06,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:32:06,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:32:06,149 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:32:06,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:32:06,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:32:06,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:32:06,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a [2025-03-03 14:32:06,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:32:06,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:32:06,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:32:06,365 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:32:06,366 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:32:06,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2025-03-03 14:32:07,488 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990f4ea1c/97c3a7df930c4ef394a86787a5957aa4/FLAG74d8b77ea [2025-03-03 14:32:07,722 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:32:07,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2025-03-03 14:32:07,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990f4ea1c/97c3a7df930c4ef394a86787a5957aa4/FLAG74d8b77ea [2025-03-03 14:32:07,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990f4ea1c/97c3a7df930c4ef394a86787a5957aa4 [2025-03-03 14:32:07,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:32:07,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:32:07,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:32:07,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:32:07,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:32:07,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:32:07" (1/1) ... [2025-03-03 14:32:07,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689ed7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:07, skipping insertion in model container [2025-03-03 14:32:07,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:32:07" (1/1) ... [2025-03-03 14:32:07,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:32:07,951 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_productSimulator.cil.c[5724,5737] [2025-03-03 14:32:08,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:32:08,050 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:32:08,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-03 14:32:08,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [272] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [317] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [326] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [692] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [771] [2025-03-03 14:32:08,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [1110] [2025-03-03 14:32:08,070 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_productSimulator.cil.c[5724,5737] [2025-03-03 14:32:08,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:32:08,106 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:32:08,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08 WrapperNode [2025-03-03 14:32:08,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:32:08,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:32:08,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:32:08,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:32:08,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,140 INFO L138 Inliner]: procedures = 65, calls = 124, calls flagged for inlining = 30, calls inlined = 27, statements flattened = 300 [2025-03-03 14:32:08,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:32:08,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:32:08,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:32:08,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:32:08,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,158 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]. [2025-03-03 14:32:08,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:32:08,171 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:32:08,171 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:32:08,171 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:32:08,172 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (1/1) ... [2025-03-03 14:32:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:32:08,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:08,199 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) [2025-03-03 14:32:08,202 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 [2025-03-03 14:32:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:32:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2025-03-03 14:32:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2025-03-03 14:32:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-03 14:32:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-03-03 14:32:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-03-03 14:32:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:32:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2025-03-03 14:32:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2025-03-03 14:32:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-03-03 14:32:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-03-03 14:32:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:32:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:32:08,290 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:32:08,291 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:32:08,324 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1010: #res := ~retValue_acc~11; [2025-03-03 14:32:08,373 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L156-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-03 14:32:08,373 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1065-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2025-03-03 14:32:08,378 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: #res := ~retValue_acc~5; [2025-03-03 14:32:08,434 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L142-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2025-03-03 14:32:08,543 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L314-1: valid_product_#res#1 := valid_product_~retValue_acc~6#1; [2025-03-03 14:32:08,544 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L269-1: main_#res#1 := main_~retValue_acc~4#1; [2025-03-03 14:32:08,569 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1084-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2025-03-03 14:32:08,569 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L165-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2025-03-03 14:32:08,580 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L110-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-03 14:32:08,581 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1001: #res#1 := ~retValue_acc~10#1; [2025-03-03 14:32:08,600 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-03-03 14:32:08,600 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:32:08,609 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:32:08,610 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:32:08,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:32:08 BoogieIcfgContainer [2025-03-03 14:32:08,610 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:32:08,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:32:08,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:32:08,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:32:08,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:32:07" (1/3) ... [2025-03-03 14:32:08,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164c7151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:32:08, skipping insertion in model container [2025-03-03 14:32:08,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:32:08" (2/3) ... [2025-03-03 14:32:08,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164c7151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:32:08, skipping insertion in model container [2025-03-03 14:32:08,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:32:08" (3/3) ... [2025-03-03 14:32:08,619 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2025-03-03 14:32:08,630 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:32:08,632 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_productSimulator.cil.c that has 13 procedures, 147 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-03 14:32:08,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:32:08,672 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;@2763a6a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:32:08,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:32:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 119 states have internal predecessors, (138), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2025-03-03 14:32:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-03 14:32:08,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:08,686 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-03 14:32:08,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:08,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -718031457, now seen corresponding path program 1 times [2025-03-03 14:32:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:08,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723398295] [2025-03-03 14:32:08,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:08,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-03 14:32:08,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-03 14:32:08,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:08,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:08,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:08,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723398295] [2025-03-03 14:32:08,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723398295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:08,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:08,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 14:32:08,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840442542] [2025-03-03 14:32:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:08,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 14:32:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:08,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 14:32:08,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:32:08,913 INFO L87 Difference]: Start difference. First operand has 147 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 119 states have internal predecessors, (138), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:08,943 INFO L93 Difference]: Finished difference Result 270 states and 370 transitions. [2025-03-03 14:32:08,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 14:32:08,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2025-03-03 14:32:08,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:08,952 INFO L225 Difference]: With dead ends: 270 [2025-03-03 14:32:08,954 INFO L226 Difference]: Without dead ends: 138 [2025-03-03 14:32:08,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:32:08,961 INFO L435 NwaCegarLoop]: 194 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, 194 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 [2025-03-03 14:32:08,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:08,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-03 14:32:08,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2025-03-03 14:32:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 96 states have (on average 1.3125) internal successors, (126), 111 states have internal predecessors, (126), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-03 14:32:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 185 transitions. [2025-03-03 14:32:09,000 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 185 transitions. Word has length 62 [2025-03-03 14:32:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:09,001 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 185 transitions. [2025-03-03 14:32:09,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2025-03-03 14:32:09,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-03 14:32:09,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:09,004 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-03 14:32:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 14:32:09,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:09,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash -417078603, now seen corresponding path program 1 times [2025-03-03 14:32:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824241014] [2025-03-03 14:32:09,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:09,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-03 14:32:09,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-03 14:32:09,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:09,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:09,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:09,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824241014] [2025-03-03 14:32:09,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824241014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:09,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:09,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 14:32:09,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637058700] [2025-03-03 14:32:09,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:09,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:09,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:09,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:09,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:09,162 INFO L87 Difference]: Start difference. First operand 138 states and 185 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:09,181 INFO L93 Difference]: Finished difference Result 220 states and 295 transitions. [2025-03-03 14:32:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:09,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2025-03-03 14:32:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:09,183 INFO L225 Difference]: With dead ends: 220 [2025-03-03 14:32:09,183 INFO L226 Difference]: Without dead ends: 129 [2025-03-03 14:32:09,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:09,185 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 20 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:09,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 319 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2025-03-03 14:32:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2025-03-03 14:32:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 105 states have internal predecessors, (119), 27 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-03 14:32:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 173 transitions. [2025-03-03 14:32:09,197 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 173 transitions. Word has length 63 [2025-03-03 14:32:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:09,197 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 173 transitions. [2025-03-03 14:32:09,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 173 transitions. [2025-03-03 14:32:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-03 14:32:09,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:09,201 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-03 14:32:09,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 14:32:09,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:09,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:09,202 INFO L85 PathProgramCache]: Analyzing trace with hash 906711861, now seen corresponding path program 1 times [2025-03-03 14:32:09,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:09,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328205752] [2025-03-03 14:32:09,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:09,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:09,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-03 14:32:09,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-03 14:32:09,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:09,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:09,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:09,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328205752] [2025-03-03 14:32:09,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328205752] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:09,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 14:32:09,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764577075] [2025-03-03 14:32:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:09,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:09,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:09,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:09,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:09,325 INFO L87 Difference]: Start difference. First operand 129 states and 173 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:09,353 INFO L93 Difference]: Finished difference Result 339 states and 462 transitions. [2025-03-03 14:32:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:09,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2025-03-03 14:32:09,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:09,358 INFO L225 Difference]: With dead ends: 339 [2025-03-03 14:32:09,358 INFO L226 Difference]: Without dead ends: 233 [2025-03-03 14:32:09,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:09,359 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 135 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:09,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 329 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-03 14:32:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2025-03-03 14:32:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 160 states have (on average 1.35625) internal successors, (217), 189 states have internal predecessors, (217), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 37 states have call predecessors, (48), 48 states have call successors, (48) [2025-03-03 14:32:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 313 transitions. [2025-03-03 14:32:09,391 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 313 transitions. Word has length 67 [2025-03-03 14:32:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:09,392 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 313 transitions. [2025-03-03 14:32:09,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 313 transitions. [2025-03-03 14:32:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-03 14:32:09,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:09,397 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-03 14:32:09,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 14:32:09,397 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:09,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1350856583, now seen corresponding path program 1 times [2025-03-03 14:32:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:09,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434522877] [2025-03-03 14:32:09,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:09,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:09,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-03 14:32:09,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-03 14:32:09,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:09,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-03 14:32:09,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:09,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434522877] [2025-03-03 14:32:09,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434522877] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:09,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:09,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:32:09,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989362071] [2025-03-03 14:32:09,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:09,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:32:09,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:09,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:32:09,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:32:09,536 INFO L87 Difference]: Start difference. First operand 230 states and 313 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:09,715 INFO L93 Difference]: Finished difference Result 564 states and 798 transitions. [2025-03-03 14:32:09,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 14:32:09,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2025-03-03 14:32:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:09,719 INFO L225 Difference]: With dead ends: 564 [2025-03-03 14:32:09,719 INFO L226 Difference]: Without dead ends: 357 [2025-03-03 14:32:09,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:32:09,723 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 132 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:09,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 727 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:32:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-03-03 14:32:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2025-03-03 14:32:09,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 254 states have (on average 1.3228346456692914) internal successors, (336), 287 states have internal predecessors, (336), 64 states have call successors, (64), 37 states have call predecessors, (64), 37 states have return successors, (84), 59 states have call predecessors, (84), 64 states have call successors, (84) [2025-03-03 14:32:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 484 transitions. [2025-03-03 14:32:09,756 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 484 transitions. Word has length 71 [2025-03-03 14:32:09,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:09,756 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 484 transitions. [2025-03-03 14:32:09,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:32:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 484 transitions. [2025-03-03 14:32:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-03 14:32:09,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:09,759 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:09,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 14:32:09,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:09,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:09,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1500912424, now seen corresponding path program 1 times [2025-03-03 14:32:09,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:09,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329327831] [2025-03-03 14:32:09,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:09,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:09,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-03 14:32:09,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-03 14:32:09,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:09,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:09,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329327831] [2025-03-03 14:32:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329327831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:09,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:09,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:32:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243300607] [2025-03-03 14:32:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:09,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:32:09,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:09,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:32:09,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:32:09,861 INFO L87 Difference]: Start difference. First operand 356 states and 484 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-03 14:32:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:09,892 INFO L93 Difference]: Finished difference Result 695 states and 988 transitions. [2025-03-03 14:32:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:32:09,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2025-03-03 14:32:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:09,895 INFO L225 Difference]: With dead ends: 695 [2025-03-03 14:32:09,895 INFO L226 Difference]: Without dead ends: 362 [2025-03-03 14:32:09,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:32:09,897 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:09,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 673 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2025-03-03 14:32:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2025-03-03 14:32:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 260 states have (on average 1.3153846153846154) internal successors, (342), 293 states have internal predecessors, (342), 64 states have call successors, (64), 37 states have call predecessors, (64), 37 states have return successors, (84), 59 states have call predecessors, (84), 64 states have call successors, (84) [2025-03-03 14:32:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 490 transitions. [2025-03-03 14:32:09,928 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 490 transitions. Word has length 91 [2025-03-03 14:32:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:09,928 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 490 transitions. [2025-03-03 14:32:09,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-03 14:32:09,929 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 490 transitions. [2025-03-03 14:32:09,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-03 14:32:09,931 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:09,931 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:09,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 14:32:09,931 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:09,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash -539298407, now seen corresponding path program 1 times [2025-03-03 14:32:09,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:09,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053012792] [2025-03-03 14:32:09,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:09,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:09,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-03 14:32:09,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-03 14:32:09,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:09,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:09,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:09,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053012792] [2025-03-03 14:32:09,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053012792] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:09,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:09,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:32:09,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449574842] [2025-03-03 14:32:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:09,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:32:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:09,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:32:09,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:10,000 INFO L87 Difference]: Start difference. First operand 362 states and 490 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-03 14:32:10,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:10,033 INFO L93 Difference]: Finished difference Result 705 states and 998 transitions. [2025-03-03 14:32:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:32:10,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2025-03-03 14:32:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:10,039 INFO L225 Difference]: With dead ends: 705 [2025-03-03 14:32:10,039 INFO L226 Difference]: Without dead ends: 366 [2025-03-03 14:32:10,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:10,041 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:10,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 507 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-03-03 14:32:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2025-03-03 14:32:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 264 states have (on average 1.3106060606060606) internal successors, (346), 297 states have internal predecessors, (346), 64 states have call successors, (64), 37 states have call predecessors, (64), 37 states have return successors, (84), 59 states have call predecessors, (84), 64 states have call successors, (84) [2025-03-03 14:32:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 494 transitions. [2025-03-03 14:32:10,066 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 494 transitions. Word has length 91 [2025-03-03 14:32:10,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:10,067 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 494 transitions. [2025-03-03 14:32:10,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-03 14:32:10,068 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 494 transitions. [2025-03-03 14:32:10,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-03 14:32:10,070 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:10,070 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:10,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 14:32:10,071 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:10,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash 846904987, now seen corresponding path program 1 times [2025-03-03 14:32:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:10,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810082563] [2025-03-03 14:32:10,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:10,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-03 14:32:10,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-03 14:32:10,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:10,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810082563] [2025-03-03 14:32:10,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810082563] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:10,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:32:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357928458] [2025-03-03 14:32:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:10,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:32:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:10,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:32:10,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:10,170 INFO L87 Difference]: Start difference. First operand 366 states and 494 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-03 14:32:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:10,323 INFO L93 Difference]: Finished difference Result 1138 states and 1603 transitions. [2025-03-03 14:32:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:32:10,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 91 [2025-03-03 14:32:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:10,329 INFO L225 Difference]: With dead ends: 1138 [2025-03-03 14:32:10,329 INFO L226 Difference]: Without dead ends: 795 [2025-03-03 14:32:10,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:10,331 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 211 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:10,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 512 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:32:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2025-03-03 14:32:10,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 783. [2025-03-03 14:32:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 567 states have (on average 1.3051146384479717) internal successors, (740), 634 states have internal predecessors, (740), 134 states have call successors, (134), 79 states have call predecessors, (134), 81 states have return successors, (212), 126 states have call predecessors, (212), 134 states have call successors, (212) [2025-03-03 14:32:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1086 transitions. [2025-03-03 14:32:10,384 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1086 transitions. Word has length 91 [2025-03-03 14:32:10,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:10,385 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1086 transitions. [2025-03-03 14:32:10,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-03 14:32:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1086 transitions. [2025-03-03 14:32:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-03 14:32:10,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:10,389 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:10,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 14:32:10,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:10,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:10,390 INFO L85 PathProgramCache]: Analyzing trace with hash -847530919, now seen corresponding path program 1 times [2025-03-03 14:32:10,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:10,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147974295] [2025-03-03 14:32:10,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:10,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:10,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-03 14:32:10,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-03 14:32:10,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:10,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 14:32:10,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147974295] [2025-03-03 14:32:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147974295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:10,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:10,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 14:32:10,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564787469] [2025-03-03 14:32:10,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:10,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 14:32:10,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:10,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 14:32:10,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:32:10,578 INFO L87 Difference]: Start difference. First operand 783 states and 1086 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-03 14:32:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:11,178 INFO L93 Difference]: Finished difference Result 2292 states and 3266 transitions. [2025-03-03 14:32:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-03 14:32:11,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 95 [2025-03-03 14:32:11,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:11,186 INFO L225 Difference]: With dead ends: 2292 [2025-03-03 14:32:11,187 INFO L226 Difference]: Without dead ends: 1662 [2025-03-03 14:32:11,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:32:11,190 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 476 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:11,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 798 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:32:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2025-03-03 14:32:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1644. [2025-03-03 14:32:11,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1198 states have (on average 1.2796327212020033) internal successors, (1533), 1327 states have internal predecessors, (1533), 262 states have call successors, (262), 159 states have call predecessors, (262), 183 states have return successors, (446), 277 states have call predecessors, (446), 262 states have call successors, (446) [2025-03-03 14:32:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2241 transitions. [2025-03-03 14:32:11,315 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2241 transitions. Word has length 95 [2025-03-03 14:32:11,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:11,316 INFO L471 AbstractCegarLoop]: Abstraction has 1644 states and 2241 transitions. [2025-03-03 14:32:11,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-03 14:32:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2241 transitions. [2025-03-03 14:32:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-03 14:32:11,319 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:11,319 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:11,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 14:32:11,319 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1484028069, now seen corresponding path program 1 times [2025-03-03 14:32:11,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:11,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028636588] [2025-03-03 14:32:11,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:11,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:11,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-03 14:32:11,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-03 14:32:11,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:11,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-03 14:32:11,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028636588] [2025-03-03 14:32:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028636588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:11,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:32:11,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:32:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781036500] [2025-03-03 14:32:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:11,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:32:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:11,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:32:11,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:11,373 INFO L87 Difference]: Start difference. First operand 1644 states and 2241 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-03 14:32:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:11,533 INFO L93 Difference]: Finished difference Result 2697 states and 3656 transitions. [2025-03-03 14:32:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:32:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2025-03-03 14:32:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:11,540 INFO L225 Difference]: With dead ends: 2697 [2025-03-03 14:32:11,541 INFO L226 Difference]: Without dead ends: 1076 [2025-03-03 14:32:11,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:11,547 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 206 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:11,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 369 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:32:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2025-03-03 14:32:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1064. [2025-03-03 14:32:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 786 states have (on average 1.2684478371501273) internal successors, (997), 863 states have internal predecessors, (997), 161 states have call successors, (161), 103 states have call predecessors, (161), 116 states have return successors, (254), 170 states have call predecessors, (254), 161 states have call successors, (254) [2025-03-03 14:32:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1412 transitions. [2025-03-03 14:32:11,609 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1412 transitions. Word has length 125 [2025-03-03 14:32:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:11,609 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1412 transitions. [2025-03-03 14:32:11,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-03 14:32:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1412 transitions. [2025-03-03 14:32:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-03 14:32:11,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:11,613 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:11,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 14:32:11,613 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:11,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash 321185273, now seen corresponding path program 1 times [2025-03-03 14:32:11,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:11,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214403699] [2025-03-03 14:32:11,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:11,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:11,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-03 14:32:11,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-03 14:32:11,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:11,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-03-03 14:32:11,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:11,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214403699] [2025-03-03 14:32:11,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214403699] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:11,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639094275] [2025-03-03 14:32:11,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:11,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:11,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:11,674 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) [2025-03-03 14:32:11,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:32:11,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-03 14:32:11,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-03 14:32:11,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:11,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:11,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:32:11,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-03 14:32:11,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:32:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639094275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:11,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:32:11,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-03-03 14:32:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748633892] [2025-03-03 14:32:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:11,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:11,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:11,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:11,872 INFO L87 Difference]: Start difference. First operand 1064 states and 1412 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-03 14:32:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:11,947 INFO L93 Difference]: Finished difference Result 2266 states and 3072 transitions. [2025-03-03 14:32:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2025-03-03 14:32:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:11,954 INFO L225 Difference]: With dead ends: 2266 [2025-03-03 14:32:11,954 INFO L226 Difference]: Without dead ends: 1225 [2025-03-03 14:32:11,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:11,958 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 92 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:11,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 347 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2025-03-03 14:32:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1127. [2025-03-03 14:32:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 838 states have (on average 1.2553699284009547) internal successors, (1052), 912 states have internal predecessors, (1052), 164 states have call successors, (164), 110 states have call predecessors, (164), 124 states have return successors, (258), 171 states have call predecessors, (258), 164 states have call successors, (258) [2025-03-03 14:32:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1474 transitions. [2025-03-03 14:32:12,022 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1474 transitions. Word has length 134 [2025-03-03 14:32:12,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:12,023 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1474 transitions. [2025-03-03 14:32:12,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-03 14:32:12,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1474 transitions. [2025-03-03 14:32:12,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-03 14:32:12,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:12,025 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:12,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 14:32:12,229 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 [2025-03-03 14:32:12,229 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:12,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:12,230 INFO L85 PathProgramCache]: Analyzing trace with hash -80573479, now seen corresponding path program 1 times [2025-03-03 14:32:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:12,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186781582] [2025-03-03 14:32:12,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:12,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:12,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-03 14:32:12,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-03 14:32:12,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:12,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-03 14:32:12,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:12,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186781582] [2025-03-03 14:32:12,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186781582] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:12,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299624577] [2025-03-03 14:32:12,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:12,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:12,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:12,382 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) [2025-03-03 14:32:12,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:32:12,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-03 14:32:12,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-03 14:32:12,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:12,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:12,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-03 14:32:12,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 27 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-03 14:32:12,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:32:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-03 14:32:12,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299624577] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:32:12,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 14:32:12,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2025-03-03 14:32:12,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609071587] [2025-03-03 14:32:12,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 14:32:12,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-03 14:32:12,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:12,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-03 14:32:12,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:32:12,798 INFO L87 Difference]: Start difference. First operand 1127 states and 1474 transitions. Second operand has 15 states, 15 states have (on average 10.6) internal successors, (159), 13 states have internal predecessors, (159), 7 states have call successors, (35), 4 states have call predecessors, (35), 8 states have return successors, (36), 10 states have call predecessors, (36), 7 states have call successors, (36) [2025-03-03 14:32:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:13,506 INFO L93 Difference]: Finished difference Result 2311 states and 3085 transitions. [2025-03-03 14:32:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-03-03 14:32:13,507 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.6) internal successors, (159), 13 states have internal predecessors, (159), 7 states have call successors, (35), 4 states have call predecessors, (35), 8 states have return successors, (36), 10 states have call predecessors, (36), 7 states have call successors, (36) Word has length 136 [2025-03-03 14:32:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:13,514 INFO L225 Difference]: With dead ends: 2311 [2025-03-03 14:32:13,514 INFO L226 Difference]: Without dead ends: 1492 [2025-03-03 14:32:13,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 269 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2025-03-03 14:32:13,518 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 502 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:13,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 2224 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:32:13,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2025-03-03 14:32:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1323. [2025-03-03 14:32:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 978 states have (on average 1.247443762781186) internal successors, (1220), 1069 states have internal predecessors, (1220), 191 states have call successors, (191), 140 states have call predecessors, (191), 153 states have return successors, (265), 193 states have call predecessors, (265), 191 states have call successors, (265) [2025-03-03 14:32:13,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1676 transitions. [2025-03-03 14:32:13,586 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1676 transitions. Word has length 136 [2025-03-03 14:32:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:13,586 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1676 transitions. [2025-03-03 14:32:13,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.6) internal successors, (159), 13 states have internal predecessors, (159), 7 states have call successors, (35), 4 states have call predecessors, (35), 8 states have return successors, (36), 10 states have call predecessors, (36), 7 states have call successors, (36) [2025-03-03 14:32:13,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1676 transitions. [2025-03-03 14:32:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-03 14:32:13,591 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:13,591 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 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] [2025-03-03 14:32:13,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-03 14:32:13,796 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 [2025-03-03 14:32:13,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1228716651, now seen corresponding path program 1 times [2025-03-03 14:32:13,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737295698] [2025-03-03 14:32:13,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:13,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-03 14:32:13,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-03 14:32:13,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:13,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 87 proven. 15 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-03 14:32:13,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737295698] [2025-03-03 14:32:13,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737295698] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775579008] [2025-03-03 14:32:13,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:13,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:13,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:13,871 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) [2025-03-03 14:32:13,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:32:13,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-03 14:32:13,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-03 14:32:13,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:13,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:13,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:32:13,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-03 14:32:14,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:32:14,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775579008] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:14,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:32:14,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-03-03 14:32:14,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915679389] [2025-03-03 14:32:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:14,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:14,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:14,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:14,094 INFO L87 Difference]: Start difference. First operand 1323 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-03 14:32:14,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:14,202 INFO L93 Difference]: Finished difference Result 3856 states and 4948 transitions. [2025-03-03 14:32:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:14,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 225 [2025-03-03 14:32:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:14,214 INFO L225 Difference]: With dead ends: 3856 [2025-03-03 14:32:14,214 INFO L226 Difference]: Without dead ends: 2556 [2025-03-03 14:32:14,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:14,218 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 91 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:14,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 377 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2025-03-03 14:32:14,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2554. [2025-03-03 14:32:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1900 states have (on average 1.2478947368421052) internal successors, (2371), 2058 states have internal predecessors, (2371), 350 states have call successors, (350), 277 states have call predecessors, (350), 303 states have return successors, (522), 345 states have call predecessors, (522), 350 states have call successors, (522) [2025-03-03 14:32:14,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3243 transitions. [2025-03-03 14:32:14,359 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3243 transitions. Word has length 225 [2025-03-03 14:32:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:14,360 INFO L471 AbstractCegarLoop]: Abstraction has 2554 states and 3243 transitions. [2025-03-03 14:32:14,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-03 14:32:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3243 transitions. [2025-03-03 14:32:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-03-03 14:32:14,366 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:14,367 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:14,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-03 14:32:14,567 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 [2025-03-03 14:32:14,567 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:14,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1135161235, now seen corresponding path program 1 times [2025-03-03 14:32:14,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:14,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306617875] [2025-03-03 14:32:14,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:14,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:14,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-03-03 14:32:14,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-03-03 14:32:14,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:14,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-03 14:32:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:14,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306617875] [2025-03-03 14:32:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306617875] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608174946] [2025-03-03 14:32:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:14,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:14,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:14,629 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) [2025-03-03 14:32:14,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:32:14,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-03-03 14:32:14,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-03-03 14:32:14,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:14,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:14,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:32:14,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-03 14:32:14,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:32:14,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608174946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:14,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:32:14,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-03-03 14:32:14,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858223888] [2025-03-03 14:32:14,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:14,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:14,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:14,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:14,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:14,909 INFO L87 Difference]: Start difference. First operand 2554 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-03 14:32:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:15,010 INFO L93 Difference]: Finished difference Result 3926 states and 4966 transitions. [2025-03-03 14:32:15,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:15,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 236 [2025-03-03 14:32:15,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:15,022 INFO L225 Difference]: With dead ends: 3926 [2025-03-03 14:32:15,023 INFO L226 Difference]: Without dead ends: 2686 [2025-03-03 14:32:15,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:32:15,027 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 70 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:15,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 456 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2025-03-03 14:32:15,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2684. [2025-03-03 14:32:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 2001 states have (on average 1.2453773113443278) internal successors, (2492), 2164 states have internal predecessors, (2492), 366 states have call successors, (366), 292 states have call predecessors, (366), 316 states have return successors, (500), 358 states have call predecessors, (500), 366 states have call successors, (500) [2025-03-03 14:32:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3358 transitions. [2025-03-03 14:32:15,210 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3358 transitions. Word has length 236 [2025-03-03 14:32:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:15,211 INFO L471 AbstractCegarLoop]: Abstraction has 2684 states and 3358 transitions. [2025-03-03 14:32:15,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-03 14:32:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3358 transitions. [2025-03-03 14:32:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-03-03 14:32:15,219 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:15,219 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:15,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-03 14:32:15,423 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 [2025-03-03 14:32:15,423 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:15,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:15,424 INFO L85 PathProgramCache]: Analyzing trace with hash -820209738, now seen corresponding path program 1 times [2025-03-03 14:32:15,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:15,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380128222] [2025-03-03 14:32:15,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:15,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:15,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-03-03 14:32:15,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-03-03 14:32:15,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:15,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 91 proven. 24 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-03 14:32:15,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:15,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380128222] [2025-03-03 14:32:15,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380128222] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:15,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207646409] [2025-03-03 14:32:15,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:15,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:15,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:15,501 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) [2025-03-03 14:32:15,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 14:32:15,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-03-03 14:32:15,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-03-03 14:32:15,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:15,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:15,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:32:15,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-03-03 14:32:15,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:32:15,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207646409] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:15,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:32:15,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-03-03 14:32:15,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714427640] [2025-03-03 14:32:15,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:15,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:15,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:15,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:15,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:15,713 INFO L87 Difference]: Start difference. First operand 2684 states and 3358 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-03 14:32:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:15,904 INFO L93 Difference]: Finished difference Result 7501 states and 9541 transitions. [2025-03-03 14:32:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:15,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 231 [2025-03-03 14:32:15,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:15,924 INFO L225 Difference]: With dead ends: 7501 [2025-03-03 14:32:15,924 INFO L226 Difference]: Without dead ends: 4973 [2025-03-03 14:32:15,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:32:15,932 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 84 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:15,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 390 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2025-03-03 14:32:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4961. [2025-03-03 14:32:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4961 states, 3712 states have (on average 1.2411099137931034) internal successors, (4607), 3976 states have internal predecessors, (4607), 649 states have call successors, (649), 556 states have call predecessors, (649), 599 states have return successors, (972), 625 states have call predecessors, (972), 649 states have call successors, (972) [2025-03-03 14:32:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4961 states to 4961 states and 6228 transitions. [2025-03-03 14:32:16,166 INFO L78 Accepts]: Start accepts. Automaton has 4961 states and 6228 transitions. Word has length 231 [2025-03-03 14:32:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:16,166 INFO L471 AbstractCegarLoop]: Abstraction has 4961 states and 6228 transitions. [2025-03-03 14:32:16,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-03 14:32:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4961 states and 6228 transitions. [2025-03-03 14:32:16,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-03-03 14:32:16,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:16,178 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:16,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-03 14:32:16,382 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 [2025-03-03 14:32:16,382 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:16,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:16,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1609066183, now seen corresponding path program 1 times [2025-03-03 14:32:16,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:16,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2964891] [2025-03-03 14:32:16,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:16,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:16,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-03-03 14:32:16,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-03-03 14:32:16,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:16,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-03-03 14:32:16,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2964891] [2025-03-03 14:32:16,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2964891] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463996988] [2025-03-03 14:32:16,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:16,463 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:32:16,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-03 14:32:16,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-03-03 14:32:16,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-03-03 14:32:16,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:16,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:16,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:32:16,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-03 14:32:16,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:32:16,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463996988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:32:16,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:32:16,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-03 14:32:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546148106] [2025-03-03 14:32:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:32:16,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:32:16,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:16,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:32:16,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:32:16,769 INFO L87 Difference]: Start difference. First operand 4961 states and 6228 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-03 14:32:17,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:17,063 INFO L93 Difference]: Finished difference Result 7269 states and 9070 transitions. [2025-03-03 14:32:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:32:17,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 236 [2025-03-03 14:32:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:17,083 INFO L225 Difference]: With dead ends: 7269 [2025-03-03 14:32:17,083 INFO L226 Difference]: Without dead ends: 4973 [2025-03-03 14:32:17,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:32:17,092 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 72 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:17,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 454 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:32:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2025-03-03 14:32:17,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4825. [2025-03-03 14:32:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 3610 states have (on average 1.2371191135734072) internal successors, (4466), 3866 states have internal predecessors, (4466), 635 states have call successors, (635), 545 states have call predecessors, (635), 579 states have return successors, (853), 604 states have call predecessors, (853), 635 states have call successors, (853) [2025-03-03 14:32:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 5954 transitions. [2025-03-03 14:32:17,360 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 5954 transitions. Word has length 236 [2025-03-03 14:32:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:17,360 INFO L471 AbstractCegarLoop]: Abstraction has 4825 states and 5954 transitions. [2025-03-03 14:32:17,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-03 14:32:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 5954 transitions. [2025-03-03 14:32:17,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2025-03-03 14:32:17,371 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:32:17,371 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 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, 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, 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] [2025-03-03 14:32:17,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-03 14:32:17,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-03 14:32:17,572 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:32:17,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:32:17,572 INFO L85 PathProgramCache]: Analyzing trace with hash 493138613, now seen corresponding path program 1 times [2025-03-03 14:32:17,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:32:17,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103022353] [2025-03-03 14:32:17,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:32:17,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-03-03 14:32:17,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-03-03 14:32:17,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:17,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-03-03 14:32:17,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:32:17,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103022353] [2025-03-03 14:32:17,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103022353] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:32:17,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200329013] [2025-03-03 14:32:17,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:32:17,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:17,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:32:17,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:32:17,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-03 14:32:17,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-03-03 14:32:17,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-03-03 14:32:17,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:32:17,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:32:17,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-03 14:32:17,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:32:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-03 14:32:18,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:32:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 86 proven. 45 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2025-03-03 14:32:18,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200329013] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:32:18,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 14:32:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 23 [2025-03-03 14:32:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718940556] [2025-03-03 14:32:18,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 14:32:18,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-03 14:32:18,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:32:18,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-03 14:32:18,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2025-03-03 14:32:18,431 INFO L87 Difference]: Start difference. First operand 4825 states and 5954 transitions. Second operand has 23 states, 23 states have (on average 10.826086956521738) internal successors, (249), 22 states have internal predecessors, (249), 9 states have call successors, (58), 8 states have call predecessors, (58), 11 states have return successors, (60), 9 states have call predecessors, (60), 9 states have call successors, (60) [2025-03-03 14:32:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:32:19,607 INFO L93 Difference]: Finished difference Result 10858 states and 13799 transitions. [2025-03-03 14:32:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-03 14:32:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.826086956521738) internal successors, (249), 22 states have internal predecessors, (249), 9 states have call successors, (58), 8 states have call predecessors, (58), 11 states have return successors, (60), 9 states have call predecessors, (60), 9 states have call successors, (60) Word has length 242 [2025-03-03 14:32:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:32:19,613 INFO L225 Difference]: With dead ends: 10858 [2025-03-03 14:32:19,613 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 14:32:19,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 472 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2025-03-03 14:32:19,630 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 769 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 14:32:19,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1270 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 14:32:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 14:32:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 14:32:19,631 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) [2025-03-03 14:32:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 14:32:19,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 242 [2025-03-03 14:32:19,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:32:19,635 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 14:32:19,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.826086956521738) internal successors, (249), 22 states have internal predecessors, (249), 9 states have call successors, (58), 8 states have call predecessors, (58), 11 states have return successors, (60), 9 states have call predecessors, (60), 9 states have call successors, (60) [2025-03-03 14:32:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 14:32:19,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 14:32:19,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 14:32:19,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-03 14:32:19,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:32:19,840 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:32:19,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 14:32:52,430 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 14:32:52,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 02:32:52 BoogieIcfgContainer [2025-03-03 14:32:52,440 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 14:32:52,441 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 14:32:52,441 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 14:32:52,441 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 14:32:52,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:32:08" (3/4) ... [2025-03-03 14:32:52,443 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure activatePump__before__methaneQuery [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__lowWaterSensor [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure select_one [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__highWaterSensor [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__before__methaneAlarm [2025-03-03 14:32:52,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2025-03-03 14:32:52,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-03-03 14:32:52,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-03 14:32:52,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-03 14:32:52,455 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 14:32:52,455 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 14:32:52,542 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 14:32:52,542 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 14:32:52,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 14:32:52,543 INFO L158 Benchmark]: Toolchain (without parser) took 44789.28ms. Allocated memory was 167.8MB in the beginning and 939.5MB in the end (delta: 771.8MB). Free memory was 133.0MB in the beginning and 466.9MB in the end (delta: -333.9MB). Peak memory consumption was 432.9MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,544 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 125.8MB in the beginning and 125.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 14:32:52,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 112.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.65ms. Allocated memory is still 167.8MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,544 INFO L158 Benchmark]: Boogie Preprocessor took 30.03ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 108.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 14:32:52,545 INFO L158 Benchmark]: IcfgBuilder took 439.21ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 85.2MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,545 INFO L158 Benchmark]: TraceAbstraction took 43825.20ms. Allocated memory was 167.8MB in the beginning and 939.5MB in the end (delta: 771.8MB). Free memory was 84.8MB in the beginning and 475.3MB in the end (delta: -390.5MB). Peak memory consumption was 535.1MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,545 INFO L158 Benchmark]: Witness Printer took 101.52ms. Allocated memory is still 939.5MB. Free memory was 475.3MB in the beginning and 466.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:32:52,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 125.8MB in the beginning and 125.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 112.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.65ms. Allocated memory is still 167.8MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.03ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 108.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 439.21ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 85.2MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 43825.20ms. Allocated memory was 167.8MB in the beginning and 939.5MB in the end (delta: 771.8MB). Free memory was 84.8MB in the beginning and 475.3MB in the end (delta: -390.5MB). Peak memory consumption was 535.1MB. Max. memory is 16.1GB. * Witness Printer took 101.52ms. Allocated memory is still 939.5MB. Free memory was 475.3MB in the beginning and 466.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 168]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] - GenericResultAtLocation [Line: 272]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [272] - GenericResultAtLocation [Line: 317]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [317] - GenericResultAtLocation [Line: 326]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [326] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [692] - GenericResultAtLocation [Line: 771]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [771] - GenericResultAtLocation [Line: 1110]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [1110] * 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: 322]: 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 13 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2890 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2860 mSDsluCounter, 9946 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6415 mSDsCounter, 749 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3187 IncrementalHoareTripleChecker+Invalid, 3936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 749 mSolverCounterUnsat, 3531 mSDtfsCounter, 3187 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1943 GetRequests, 1830 SyntacticMatches, 7 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4961occurred in iteration=14, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 477 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3636 NumberOfCodeBlocks, 3636 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3989 ConstructedInterpolants, 0 QuantifiedInterpolants, 7232 SizeOfPredicates, 2 NumberOfNonLiveVariables, 4355 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 25 InterpolantComputations, 14 PerfectInterpolantSequences, 3597/3755 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 181]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 705]: Location Invariant Derived location invariant: (((((((((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 == systemActive)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive)) && (waterLevel == 1))) || (((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != __SELECTED_FEATURE_highWaterSensor)) && (0 == systemActive))) || (((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (0 != __SELECTED_FEATURE_highWaterSensor)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (0 != __SELECTED_FEATURE_highWaterSensor)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (0 != __SELECTED_FEATURE_highWaterSensor))) RESULT: Ultimate proved your program to be correct! [2025-03-03 14:32:52,563 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