./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product61.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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:18:16,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:18:16,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:18:16,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:18:16,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:18:16,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:18:16,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:18:16,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:18:16,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:18:16,191 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:18:16,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:18:16,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:18:16,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:18:16,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:18:16,195 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:18:16,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:18:16,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:18:16,196 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:18:16,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:18:16,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:18:16,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:18:16,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:18:16,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:18:16,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:18:16,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:18:16,201 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:18:16,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:18:16,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:18:16,202 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:18:16,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:18:16,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:18:16,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:18:16,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:16,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:18:16,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:18:16,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:18:16,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:18:16,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:18:16,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:18:16,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:18:16,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:18:16,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:18:16,206 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2024-11-09 23:18:16,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:18:16,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:18:16,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:18:16,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:18:16,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:18:16,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2024-11-09 23:18:17,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:18:18,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:18:18,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2024-11-09 23:18:18,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cd7301fb/ef749805cf734cb0b584c6e66aa33475/FLAG036a7507b [2024-11-09 23:18:18,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cd7301fb/ef749805cf734cb0b584c6e66aa33475 [2024-11-09 23:18:18,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:18:18,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:18:18,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:18,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:18:18,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:18:18,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:18" (1/1) ... [2024-11-09 23:18:18,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ea641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:18, skipping insertion in model container [2024-11-09 23:18:18,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:18" (1/1) ... [2024-11-09 23:18:18,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:18:18,768 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_spec4_product61.cil.c[1605,1618] [2024-11-09 23:18:18,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:18,923 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:18:18,932 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-09 23:18:18,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-09 23:18:18,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-11-09 23:18:18,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] [2024-11-09 23:18:18,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-09 23:18:18,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] [2024-11-09 23:18:18,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-11-09 23:18:18,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] [2024-11-09 23:18:18,943 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_spec4_product61.cil.c[1605,1618] [2024-11-09 23:18:18,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:19,010 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:18:19,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19 WrapperNode [2024-11-09 23:18:19,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:19,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:19,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:18:19,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:18:19,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,060 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 235 [2024-11-09 23:18:19,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:19,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:18:19,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:18:19,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:18:19,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,129 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:18:19,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,139 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:18:19,151 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:18:19,151 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:18:19,151 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:18:19,152 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (1/1) ... [2024-11-09 23:18:19,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:19,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:18:19,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:18:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:18:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:18:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:18:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:18:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:18:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:18:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:18:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:18:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:18:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-09 23:18:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-09 23:18:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-09 23:18:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-09 23:18:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:18:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:18:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:18:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:18:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:18:19,337 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:18:19,340 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:18:19,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2024-11-09 23:18:19,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2024-11-09 23:18:19,575 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L93-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-09 23:18:19,575 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1004-1: main_#res#1 := main_~retValue_acc~13#1; [2024-11-09 23:18:19,617 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L325-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2024-11-09 23:18:19,617 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L507-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2024-11-09 23:18:19,651 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2024-11-09 23:18:19,651 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L516-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-09 23:18:19,663 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L461-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2024-11-09 23:18:19,663 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: #res#1 := ~retValue_acc~2#1; [2024-11-09 23:18:19,693 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-09 23:18:19,693 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:18:19,714 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:18:19,714 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:18:19,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:19 BoogieIcfgContainer [2024-11-09 23:18:19,715 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:18:19,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:18:19,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:18:19,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:18:19,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:18:18" (1/3) ... [2024-11-09 23:18:19,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c843b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:19, skipping insertion in model container [2024-11-09 23:18:19,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:19" (2/3) ... [2024-11-09 23:18:19,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c843b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:19, skipping insertion in model container [2024-11-09 23:18:19,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:19" (3/3) ... [2024-11-09 23:18:19,726 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2024-11-09 23:18:19,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:18:19,742 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:18:19,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:18:19,820 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;@116543bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:18:19,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:18:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 80 states have (on average 1.3625) internal successors, (109), 90 states have internal predecessors, (109), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 23:18:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 23:18:19,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:19,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:19,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:19,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1316796507, now seen corresponding path program 1 times [2024-11-09 23:18:19,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:19,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997674023] [2024-11-09 23:18:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:19,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:20,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:20,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997674023] [2024-11-09 23:18:20,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997674023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:20,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:20,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:20,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553322542] [2024-11-09 23:18:20,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:20,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:18:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:20,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:18:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:18:20,088 INFO L87 Difference]: Start difference. First operand has 107 states, 80 states have (on average 1.3625) internal successors, (109), 90 states have internal predecessors, (109), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:20,121 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-09 23:18:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:18:20,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 23:18:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:20,133 INFO L225 Difference]: With dead ends: 205 [2024-11-09 23:18:20,133 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 23:18:20,138 INFO L431 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 [2024-11-09 23:18:20,143 INFO L432 NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:20,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 23:18:20,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 23:18:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 23:18:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2024-11-09 23:18:20,202 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 21 [2024-11-09 23:18:20,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:20,203 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2024-11-09 23:18:20,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2024-11-09 23:18:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 23:18:20,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:20,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:20,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:18:20,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:20,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash -358007669, now seen corresponding path program 1 times [2024-11-09 23:18:20,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:20,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566558828] [2024-11-09 23:18:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:20,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:20,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566558828] [2024-11-09 23:18:20,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566558828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:20,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:20,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:18:20,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65046152] [2024-11-09 23:18:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:20,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:20,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:20,347 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:20,373 INFO L93 Difference]: Finished difference Result 157 states and 203 transitions. [2024-11-09 23:18:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:20,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-09 23:18:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:20,376 INFO L225 Difference]: With dead ends: 157 [2024-11-09 23:18:20,377 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 23:18:20,378 INFO L431 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 [2024-11-09 23:18:20,380 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 11 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:20,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 23:18:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-09 23:18:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.328125) internal successors, (85), 73 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 23:18:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-11-09 23:18:20,401 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 23 [2024-11-09 23:18:20,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:20,402 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-11-09 23:18:20,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-11-09 23:18:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 23:18:20,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:20,403 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:20,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:18:20,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:20,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1104190062, now seen corresponding path program 1 times [2024-11-09 23:18:20,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:20,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998690164] [2024-11-09 23:18:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:20,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998690164] [2024-11-09 23:18:20,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998690164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:20,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:20,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:20,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355537943] [2024-11-09 23:18:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:20,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:20,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:20,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:20,497 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:20,520 INFO L93 Difference]: Finished difference Result 165 states and 216 transitions. [2024-11-09 23:18:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:20,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 23:18:20,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:20,523 INFO L225 Difference]: With dead ends: 165 [2024-11-09 23:18:20,524 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 23:18:20,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:20,528 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:20,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 109 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:20,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 23:18:20,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-09 23:18:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 73 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 23:18:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-09 23:18:20,547 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 25 [2024-11-09 23:18:20,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:20,547 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-09 23:18:20,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-09 23:18:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 23:18:20,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:20,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:20,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:18:20,550 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:20,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1566139659, now seen corresponding path program 1 times [2024-11-09 23:18:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:20,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106107711] [2024-11-09 23:18:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:20,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 23:18:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:20,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106107711] [2024-11-09 23:18:20,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106107711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:20,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:20,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:18:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810616242] [2024-11-09 23:18:20,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:20,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:18:20,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:20,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:18:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:18:20,753 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:18:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,012 INFO L93 Difference]: Finished difference Result 243 states and 311 transitions. [2024-11-09 23:18:21,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:21,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-09 23:18:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,018 INFO L225 Difference]: With dead ends: 243 [2024-11-09 23:18:21,018 INFO L226 Difference]: Without dead ends: 164 [2024-11-09 23:18:21,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:18:21,019 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 157 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 190 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:18:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-09 23:18:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2024-11-09 23:18:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 118 states have (on average 1.271186440677966) internal successors, (150), 127 states have internal predecessors, (150), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-09 23:18:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2024-11-09 23:18:21,049 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 38 [2024-11-09 23:18:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,049 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2024-11-09 23:18:21,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 23:18:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2024-11-09 23:18:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 23:18:21,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:21,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:18:21,052 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1196281243, now seen corresponding path program 1 times [2024-11-09 23:18:21,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194262064] [2024-11-09 23:18:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:21,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:21,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194262064] [2024-11-09 23:18:21,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194262064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:21,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:21,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014347092] [2024-11-09 23:18:21,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:18:21,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:18:21,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:21,234 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:18:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,751 INFO L93 Difference]: Finished difference Result 580 states and 769 transitions. [2024-11-09 23:18:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:18:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-09 23:18:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,761 INFO L225 Difference]: With dead ends: 580 [2024-11-09 23:18:21,762 INFO L226 Difference]: Without dead ends: 432 [2024-11-09 23:18:21,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 23:18:21,764 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 332 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 494 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 23:18:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-09 23:18:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 425. [2024-11-09 23:18:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 318 states have (on average 1.2452830188679245) internal successors, (396), 343 states have internal predecessors, (396), 46 states have call successors, (46), 43 states have call predecessors, (46), 60 states have return successors, (105), 54 states have call predecessors, (105), 46 states have call successors, (105) [2024-11-09 23:18:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 547 transitions. [2024-11-09 23:18:21,857 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 547 transitions. Word has length 46 [2024-11-09 23:18:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,857 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 547 transitions. [2024-11-09 23:18:21,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:18:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 547 transitions. [2024-11-09 23:18:21,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 23:18:21,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:21,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:18:21,863 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1916904665, now seen corresponding path program 1 times [2024-11-09 23:18:21,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466599458] [2024-11-09 23:18:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:18:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:22,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466599458] [2024-11-09 23:18:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466599458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:22,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:22,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622566443] [2024-11-09 23:18:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:22,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:18:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:18:22,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:22,081 INFO L87 Difference]: Start difference. First operand 425 states and 547 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:18:22,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:22,541 INFO L93 Difference]: Finished difference Result 496 states and 638 transitions. [2024-11-09 23:18:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 23:18:22,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2024-11-09 23:18:22,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:22,547 INFO L225 Difference]: With dead ends: 496 [2024-11-09 23:18:22,547 INFO L226 Difference]: Without dead ends: 493 [2024-11-09 23:18:22,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-09 23:18:22,548 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 221 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:22,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 298 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:18:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-09 23:18:22,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 466. [2024-11-09 23:18:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 351 states have (on average 1.2307692307692308) internal successors, (432), 379 states have internal predecessors, (432), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2024-11-09 23:18:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 601 transitions. [2024-11-09 23:18:22,601 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 601 transitions. Word has length 50 [2024-11-09 23:18:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:22,602 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 601 transitions. [2024-11-09 23:18:22,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:18:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 601 transitions. [2024-11-09 23:18:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 23:18:22,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:22,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:22,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:18:22,604 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:22,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:22,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1855261971, now seen corresponding path program 1 times [2024-11-09 23:18:22,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675402448] [2024-11-09 23:18:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:18:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:22,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:22,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675402448] [2024-11-09 23:18:22,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675402448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:22,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:22,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874332901] [2024-11-09 23:18:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:22,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:18:22,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:18:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:22,755 INFO L87 Difference]: Start difference. First operand 466 states and 601 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:18:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:23,115 INFO L93 Difference]: Finished difference Result 961 states and 1306 transitions. [2024-11-09 23:18:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:18:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-09 23:18:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:23,120 INFO L225 Difference]: With dead ends: 961 [2024-11-09 23:18:23,120 INFO L226 Difference]: Without dead ends: 502 [2024-11-09 23:18:23,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:18:23,122 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 152 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:23,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 298 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:18:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-09 23:18:23,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 475. [2024-11-09 23:18:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 360 states have (on average 1.225) internal successors, (441), 388 states have internal predecessors, (441), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2024-11-09 23:18:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 610 transitions. [2024-11-09 23:18:23,188 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 610 transitions. Word has length 56 [2024-11-09 23:18:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:23,189 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 610 transitions. [2024-11-09 23:18:23,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:18:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 610 transitions. [2024-11-09 23:18:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 23:18:23,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:23,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:23,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:18:23,191 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:23,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash -221947372, now seen corresponding path program 1 times [2024-11-09 23:18:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:23,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39363925] [2024-11-09 23:18:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:23,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:18:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:23,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:23,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39363925] [2024-11-09 23:18:23,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39363925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:23,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:23,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:23,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232649404] [2024-11-09 23:18:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:23,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:18:23,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:18:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:23,307 INFO L87 Difference]: Start difference. First operand 475 states and 610 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:18:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:23,636 INFO L93 Difference]: Finished difference Result 933 states and 1244 transitions. [2024-11-09 23:18:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:18:23,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-09 23:18:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:23,641 INFO L225 Difference]: With dead ends: 933 [2024-11-09 23:18:23,641 INFO L226 Difference]: Without dead ends: 465 [2024-11-09 23:18:23,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:18:23,644 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 244 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:23,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 227 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:18:23,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-09 23:18:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 453. [2024-11-09 23:18:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 343 states have (on average 1.2215743440233235) internal successors, (419), 369 states have internal predecessors, (419), 49 states have call successors, (49), 42 states have call predecessors, (49), 60 states have return successors, (110), 56 states have call predecessors, (110), 49 states have call successors, (110) [2024-11-09 23:18:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 578 transitions. [2024-11-09 23:18:23,703 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 578 transitions. Word has length 56 [2024-11-09 23:18:23,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:23,704 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 578 transitions. [2024-11-09 23:18:23,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 23:18:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 578 transitions. [2024-11-09 23:18:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:18:23,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:23,706 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:23,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:18:23,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:23,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash -432278628, now seen corresponding path program 1 times [2024-11-09 23:18:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:23,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062886621] [2024-11-09 23:18:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 23:18:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-09 23:18:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:18:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:18:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,882 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:23,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:23,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062886621] [2024-11-09 23:18:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062886621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423221581] [2024-11-09 23:18:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:23,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:23,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:23,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:23,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:18:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:23,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 23:18:24,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:24,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:24,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423221581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:24,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:24,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2024-11-09 23:18:24,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699247555] [2024-11-09 23:18:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:24,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:24,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:24,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:24,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:18:24,205 INFO L87 Difference]: Start difference. First operand 453 states and 578 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 23:18:24,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:24,582 INFO L93 Difference]: Finished difference Result 856 states and 1143 transitions. [2024-11-09 23:18:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:18:24,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 102 [2024-11-09 23:18:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:24,586 INFO L225 Difference]: With dead ends: 856 [2024-11-09 23:18:24,586 INFO L226 Difference]: Without dead ends: 410 [2024-11-09 23:18:24,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:18:24,589 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 179 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:24,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 284 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:18:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-09 23:18:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2024-11-09 23:18:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 308 states have (on average 1.2272727272727273) internal successors, (378), 328 states have internal predecessors, (378), 49 states have call successors, (49), 42 states have call predecessors, (49), 47 states have return successors, (93), 47 states have call predecessors, (93), 49 states have call successors, (93) [2024-11-09 23:18:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 520 transitions. [2024-11-09 23:18:24,641 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 520 transitions. Word has length 102 [2024-11-09 23:18:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:24,642 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 520 transitions. [2024-11-09 23:18:24,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 23:18:24,642 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 520 transitions. [2024-11-09 23:18:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:18:24,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:24,645 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:24,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:18:24,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:24,846 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:24,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:24,846 INFO L85 PathProgramCache]: Analyzing trace with hash -61162084, now seen corresponding path program 2 times [2024-11-09 23:18:24,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:24,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672594405] [2024-11-09 23:18:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:24,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:24,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:24,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:18:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:18:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:25,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:25,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672594405] [2024-11-09 23:18:25,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672594405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:25,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006563605] [2024-11-09 23:18:25,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 23:18:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:25,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:25,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:25,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:18:25,139 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 23:18:25,140 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 23:18:25,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:18:25,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:25,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:18:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:25,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006563605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:18:25,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:18:25,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2024-11-09 23:18:25,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864846097] [2024-11-09 23:18:25,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:18:25,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:18:25,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:25,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:18:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:18:25,415 INFO L87 Difference]: Start difference. First operand 405 states and 520 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:26,088 INFO L93 Difference]: Finished difference Result 954 states and 1277 transitions. [2024-11-09 23:18:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 23:18:26,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2024-11-09 23:18:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:26,092 INFO L225 Difference]: With dead ends: 954 [2024-11-09 23:18:26,092 INFO L226 Difference]: Without dead ends: 599 [2024-11-09 23:18:26,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 221 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-11-09 23:18:26,094 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 428 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:26,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 422 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 23:18:26,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-09 23:18:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 564. [2024-11-09 23:18:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 427 states have (on average 1.224824355971897) internal successors, (523), 454 states have internal predecessors, (523), 70 states have call successors, (70), 61 states have call predecessors, (70), 66 states have return successors, (139), 64 states have call predecessors, (139), 70 states have call successors, (139) [2024-11-09 23:18:26,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 732 transitions. [2024-11-09 23:18:26,130 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 732 transitions. Word has length 102 [2024-11-09 23:18:26,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:26,130 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 732 transitions. [2024-11-09 23:18:26,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 732 transitions. [2024-11-09 23:18:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 23:18:26,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:26,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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] [2024-11-09 23:18:26,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:18:26,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:18:26,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:26,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:26,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1597545182, now seen corresponding path program 3 times [2024-11-09 23:18:26,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:26,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351515168] [2024-11-09 23:18:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:26,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:18:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 23:18:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:18:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:18:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:18:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:18:26,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351515168] [2024-11-09 23:18:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351515168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801515582] [2024-11-09 23:18:26,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 23:18:26,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:26,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:26,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:26,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:18:26,831 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 23:18:26,831 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 23:18:26,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 23:18:26,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 23:18:26,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801515582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:26,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:26,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2024-11-09 23:18:26,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648100005] [2024-11-09 23:18:26,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:26,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:26,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:26,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:26,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:18:26,926 INFO L87 Difference]: Start difference. First operand 564 states and 732 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:27,158 INFO L93 Difference]: Finished difference Result 1441 states and 1926 transitions. [2024-11-09 23:18:27,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:18:27,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 148 [2024-11-09 23:18:27,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:27,164 INFO L225 Difference]: With dead ends: 1441 [2024-11-09 23:18:27,165 INFO L226 Difference]: Without dead ends: 926 [2024-11-09 23:18:27,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:18:27,168 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 143 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:27,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 720 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:18:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-09 23:18:27,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 815. [2024-11-09 23:18:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 616 states have (on average 1.2094155844155845) internal successors, (745), 649 states have internal predecessors, (745), 96 states have call successors, (96), 90 states have call predecessors, (96), 102 states have return successors, (189), 95 states have call predecessors, (189), 96 states have call successors, (189) [2024-11-09 23:18:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1030 transitions. [2024-11-09 23:18:27,231 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1030 transitions. Word has length 148 [2024-11-09 23:18:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:27,231 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1030 transitions. [2024-11-09 23:18:27,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1030 transitions. [2024-11-09 23:18:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 23:18:27,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:27,234 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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] [2024-11-09 23:18:27,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 23:18:27,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:27,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:27,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:27,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1026908545, now seen corresponding path program 1 times [2024-11-09 23:18:27,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:27,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222115820] [2024-11-09 23:18:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:27,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:18:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 23:18:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:18:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:18:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:18:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 15 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 23:18:27,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222115820] [2024-11-09 23:18:27,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222115820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086447451] [2024-11-09 23:18:27,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:27,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:27,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:18:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:27,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 23:18:27,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 23:18:27,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:27,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086447451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:27,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:27,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-09 23:18:27,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95939570] [2024-11-09 23:18:27,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:27,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:27,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:27,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:18:27,811 INFO L87 Difference]: Start difference. First operand 815 states and 1030 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 23:18:27,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:27,853 INFO L93 Difference]: Finished difference Result 1117 states and 1401 transitions. [2024-11-09 23:18:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:27,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 148 [2024-11-09 23:18:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:27,855 INFO L225 Difference]: With dead ends: 1117 [2024-11-09 23:18:27,855 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:18:27,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:18:27,858 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:27,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:18:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:18:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:18:27,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2024-11-09 23:18:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:27,861 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:18:27,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 23:18:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:18:27,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:18:27,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:18:27,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:18:28,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:28,067 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:28,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:18:29,740 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:18:29,750 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-09 23:18:29,767 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-09 23:18:29,777 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))))) [2024-11-09 23:18:29,781 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-09 23:18:29,785 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-09 23:18:29,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:18:29 BoogieIcfgContainer [2024-11-09 23:18:29,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:18:29,791 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:18:29,791 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:18:29,791 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:18:29,792 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:19" (3/4) ... [2024-11-09 23:18:29,795 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:18:29,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-09 23:18:29,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:18:29,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:18:29,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:18:29,799 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:18:29,799 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:29,799 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:18:29,799 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:29,799 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-09 23:18:29,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-11-09 23:18:29,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:18:29,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:18:29,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:29,811 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:29,924 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:18:29,925 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:18:29,925 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:18:29,926 INFO L158 Benchmark]: Toolchain (without parser) took 11402.18ms. Allocated memory was 142.6MB in the beginning and 281.0MB in the end (delta: 138.4MB). Free memory was 85.7MB in the beginning and 131.2MB in the end (delta: -45.5MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,926 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:18:29,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.04ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 63.7MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.54ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,927 INFO L158 Benchmark]: Boogie Preprocessor took 85.20ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 61.3MB in the beginning and 153.2MB in the end (delta: -91.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,927 INFO L158 Benchmark]: IcfgBuilder took 564.33ms. Allocated memory is still 184.5MB. Free memory was 153.1MB in the beginning and 135.2MB in the end (delta: 17.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,927 INFO L158 Benchmark]: TraceAbstraction took 10071.98ms. Allocated memory was 184.5MB in the beginning and 281.0MB in the end (delta: 96.5MB). Free memory was 134.2MB in the beginning and 139.6MB in the end (delta: -5.4MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,927 INFO L158 Benchmark]: Witness Printer took 134.20ms. Allocated memory is still 281.0MB. Free memory was 139.6MB in the beginning and 131.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 23:18:29,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.04ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 63.7MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.54ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.20ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 61.3MB in the beginning and 153.2MB in the end (delta: -91.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * IcfgBuilder took 564.33ms. Allocated memory is still 184.5MB. Free memory was 153.1MB in the beginning and 135.2MB in the end (delta: 17.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10071.98ms. Allocated memory was 184.5MB in the beginning and 281.0MB in the end (delta: 96.5MB). Free memory was 134.2MB in the beginning and 139.6MB in the end (delta: -5.4MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. * Witness Printer took 134.20ms. Allocated memory is still 281.0MB. Free memory was 139.6MB in the beginning and 131.2MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 347]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] - GenericResultAtLocation [Line: 545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] * 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: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1996 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1960 mSDsluCounter, 3780 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2636 mSDsCounter, 549 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2382 IncrementalHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 549 mSolverCounterUnsat, 1144 mSDtfsCounter, 2382 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 872 GetRequests, 742 SyntacticMatches, 12 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=815occurred in iteration=11, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 233 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1315 NumberOfCodeBlocks, 1267 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1400 ConstructedInterpolants, 0 QuantifiedInterpolants, 2552 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1429 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 477/548 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 923]: Location Invariant Derived location invariant: null - InvariantResult [Line: 361]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 245]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 135]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 443]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 913]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 111]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: ((((((1 == systemActive) && (2 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) && (((2 <= waterLevel) && (waterLevel <= \old(waterLevel))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (waterLevel <= \old(waterLevel))))) && ((\old(pumpRunning) != 0) || ((1 == systemActive) && (\old(waterLevel) == waterLevel)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 143]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 <= waterLevel) && (1 == systemActive)) || ((1 == systemActive) && (waterLevel == 1)))) Ensures: ((((1 == systemActive) && (\old(pumpRunning) == 0)) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 431]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((pumpRunning == 0) && (1 == systemActive)) && (1 <= \old(waterLevel))))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 169]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((1 == systemActive) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 253]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: (((1 == systemActive) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:18:29,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE