./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product57.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_spec1_product57.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 d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:15:32,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:15:32,572 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:15:32,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:15:32,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:15:32,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:15:32,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:15:32,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:15:32,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:15:32,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:15:32,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:15:32,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:15:32,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:15:32,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:15:32,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:15:32,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:15:32,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:15:32,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:15:32,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:15:32,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:15:32,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:15:32,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:15:32,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:15:32,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:15:32,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:15:32,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:15:32,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:15:32,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:15:32,628 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:15:32,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:15:32,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:15:32,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:15:32,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:15:32,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:15:32,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:15:32,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:15:32,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:15:32,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:15:32,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:15:32,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:15:32,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:15:32,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:15:32,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a [2024-11-09 23:15:32,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:15:32,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:15:32,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:15:32,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:15:32,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:15:32,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2024-11-09 23:15:34,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:15:34,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:15:34,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2024-11-09 23:15:34,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abc07134/dc2d5549005b4dea9228babd937e13de/FLAG1f84163a7 [2024-11-09 23:15:34,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abc07134/dc2d5549005b4dea9228babd937e13de [2024-11-09 23:15:34,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:15:34,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:15:34,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:15:34,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:15:34,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:15:34,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:34" (1/1) ... [2024-11-09 23:15:34,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c206b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:34, skipping insertion in model container [2024-11-09 23:15:34,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:34" (1/1) ... [2024-11-09 23:15:35,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:15:35,330 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_spec1_product57.cil.c[18661,18674] [2024-11-09 23:15:35,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:15:35,349 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:15:35,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2024-11-09 23:15:35,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] [2024-11-09 23:15:35,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116] [2024-11-09 23:15:35,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] [2024-11-09 23:15:35,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551] [2024-11-09 23:15:35,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773] [2024-11-09 23:15:35,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869] [2024-11-09 23:15:35,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973] [2024-11-09 23:15:35,427 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_spec1_product57.cil.c[18661,18674] [2024-11-09 23:15:35,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:15:35,460 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:15:35,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35 WrapperNode [2024-11-09 23:15:35,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:15:35,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:15:35,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:15:35,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:15:35,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,527 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 214 [2024-11-09 23:15:35,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:15:35,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:15:35,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:15:35,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:15:35,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,569 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 23:15:35,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,575 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:15:35,587 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:15:35,587 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:15:35,588 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:15:35,588 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (1/1) ... [2024-11-09 23:15:35,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:15:35,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:35,654 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 23:15:35,657 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 23:15:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:15:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:15:35,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:15:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:15:35,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:15:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:15:35,704 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:15:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-09 23:15:35,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-09 23:15:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:15:35,705 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:15:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:15:35,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:15:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:15:35,706 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:15:35,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:15:35,774 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:15:35,776 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:15:35,916 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L770-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-09 23:15:35,916 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L696-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-09 23:15:35,917 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2024-11-09 23:15:35,920 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L915: #res := ~retValue_acc~10; [2024-11-09 23:15:35,976 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L866-1: main_#res#1 := main_~retValue_acc~9#1; [2024-11-09 23:15:35,976 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L113-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-09 23:15:36,011 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L961-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-09 23:15:36,011 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L687-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-09 23:15:36,011 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L751-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-09 23:15:36,033 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-09 23:15:36,034 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:15:36,051 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:15:36,052 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:15:36,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:36 BoogieIcfgContainer [2024-11-09 23:15:36,052 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:15:36,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:15:36,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:15:36,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:15:36,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:15:34" (1/3) ... [2024-11-09 23:15:36,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab8cb04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:36, skipping insertion in model container [2024-11-09 23:15:36,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:35" (2/3) ... [2024-11-09 23:15:36,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab8cb04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:36, skipping insertion in model container [2024-11-09 23:15:36,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:36" (3/3) ... [2024-11-09 23:15:36,062 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2024-11-09 23:15:36,077 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:15:36,077 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:15:36,137 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:15:36,143 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;@6e842148, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:15:36,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:15:36,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 74 states have (on average 1.364864864864865) internal successors, (101), 82 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 23:15:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 23:15:36,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:36,160 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 23:15:36,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:36,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1707333382, now seen corresponding path program 1 times [2024-11-09 23:15:36,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:36,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442307238] [2024-11-09 23:15:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 23:15:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,390 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 23:15:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:36,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442307238] [2024-11-09 23:15:36,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442307238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:36,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:36,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:15:36,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090689670] [2024-11-09 23:15:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:36,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:15:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:36,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:15:36,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:15:36,419 INFO L87 Difference]: Start difference. First operand has 95 states, 74 states have (on average 1.364864864864865) internal successors, (101), 82 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:36,459 INFO L93 Difference]: Finished difference Result 181 states and 244 transitions. [2024-11-09 23:15:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:15:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 23:15:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:36,485 INFO L225 Difference]: With dead ends: 181 [2024-11-09 23:15:36,485 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 23:15:36,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:15:36,495 INFO L432 NwaCegarLoop]: 118 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, 118 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 23:15:36,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 23:15:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-09 23:15:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 72 states have internal predecessors, (85), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 23:15:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2024-11-09 23:15:36,553 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 25 [2024-11-09 23:15:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:36,555 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2024-11-09 23:15:36,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2024-11-09 23:15:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 23:15:36,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:36,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:36,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:15:36,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:36,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:36,560 INFO L85 PathProgramCache]: Analyzing trace with hash 334916556, now seen corresponding path program 1 times [2024-11-09 23:15:36,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:36,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568493539] [2024-11-09 23:15:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 23:15:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,685 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 23:15:36,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:36,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568493539] [2024-11-09 23:15:36,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568493539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:36,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:36,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119404570] [2024-11-09 23:15:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:36,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:36,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:36,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:36,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:36,689 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:36,707 INFO L93 Difference]: Finished difference Result 133 states and 171 transitions. [2024-11-09 23:15:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:36,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 23:15:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:36,709 INFO L225 Difference]: With dead ends: 133 [2024-11-09 23:15:36,710 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 23:15:36,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:36,711 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 11 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 172 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 23:15:36,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 23:15:36,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-09 23:15:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 23:15:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2024-11-09 23:15:36,721 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 27 [2024-11-09 23:15:36,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:36,721 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2024-11-09 23:15:36,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2024-11-09 23:15:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:15:36,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:36,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:36,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:15:36,724 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:36,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:36,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1245768861, now seen corresponding path program 1 times [2024-11-09 23:15:36,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:36,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072153995] [2024-11-09 23:15:36,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:36,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,862 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 23:15:36,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072153995] [2024-11-09 23:15:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072153995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662536615] [2024-11-09 23:15:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:36,865 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:36,888 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2024-11-09 23:15:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 23:15:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:36,890 INFO L225 Difference]: With dead ends: 141 [2024-11-09 23:15:36,890 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 23:15:36,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:36,892 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 93 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 23:15:36,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 23:15:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-09 23:15:36,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 23:15:36,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-09 23:15:36,902 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 29 [2024-11-09 23:15:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:36,903 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-09 23:15:36,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-09 23:15:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 23:15:36,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:36,905 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] [2024-11-09 23:15:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:15:36,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -335982418, now seen corresponding path program 1 times [2024-11-09 23:15:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775371183] [2024-11-09 23:15:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 23:15:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:36,970 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 23:15:36,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:36,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775371183] [2024-11-09 23:15:36,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775371183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:36,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:36,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:15:36,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896942342] [2024-11-09 23:15:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:36,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:15:36,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:15:36,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:36,973 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:37,022 INFO L93 Difference]: Finished difference Result 185 states and 240 transitions. [2024-11-09 23:15:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:15:37,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2024-11-09 23:15:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:37,026 INFO L225 Difference]: With dead ends: 185 [2024-11-09 23:15:37,026 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 23:15:37,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:15:37,028 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 74 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:37,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 163 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 23:15:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 115. [2024-11-09 23:15:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 97 states have internal predecessors, (115), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-09 23:15:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 145 transitions. [2024-11-09 23:15:37,056 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 145 transitions. Word has length 37 [2024-11-09 23:15:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:37,057 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 145 transitions. [2024-11-09 23:15:37,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 23:15:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 145 transitions. [2024-11-09 23:15:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 23:15:37,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:37,059 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] [2024-11-09 23:15:37,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:15:37,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:37,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash 688059214, now seen corresponding path program 1 times [2024-11-09 23:15:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:37,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917647223] [2024-11-09 23:15:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:37,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 23:15:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,246 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 23:15:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:37,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917647223] [2024-11-09 23:15:37,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917647223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:37,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:15:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560149901] [2024-11-09 23:15:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:37,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:15:37,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:15:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:15:37,248 INFO L87 Difference]: Start difference. First operand 115 states and 145 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 23:15:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:37,515 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2024-11-09 23:15:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:15:37,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-09 23:15:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:37,519 INFO L225 Difference]: With dead ends: 143 [2024-11-09 23:15:37,519 INFO L226 Difference]: Without dead ends: 140 [2024-11-09 23:15:37,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:15:37,523 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 124 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:37,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 337 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:15:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-09 23:15:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2024-11-09 23:15:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 114 states have internal predecessors, (134), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-09 23:15:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 171 transitions. [2024-11-09 23:15:37,554 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 171 transitions. Word has length 45 [2024-11-09 23:15:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:37,555 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 171 transitions. [2024-11-09 23:15:37,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 23:15:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 171 transitions. [2024-11-09 23:15:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 23:15:37,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:37,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:37,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:15:37,561 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:37,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1543597545, now seen corresponding path program 1 times [2024-11-09 23:15:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756123196] [2024-11-09 23:15:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:37,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 23:15:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:15:37,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756123196] [2024-11-09 23:15:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756123196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:37,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:37,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:15:37,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4741470] [2024-11-09 23:15:37,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:37,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:15:37,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:37,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:15:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:15:37,732 INFO L87 Difference]: Start difference. First operand 137 states and 171 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:37,893 INFO L93 Difference]: Finished difference Result 273 states and 349 transitions. [2024-11-09 23:15:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:15:37,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-09 23:15:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:37,896 INFO L225 Difference]: With dead ends: 273 [2024-11-09 23:15:37,896 INFO L226 Difference]: Without dead ends: 143 [2024-11-09 23:15:37,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:15:37,900 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 55 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:37,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 346 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:15:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-09 23:15:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2024-11-09 23:15:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 117 states have internal predecessors, (137), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-09 23:15:37,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2024-11-09 23:15:37,933 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 51 [2024-11-09 23:15:37,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:37,934 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2024-11-09 23:15:37,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2024-11-09 23:15:37,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 23:15:37,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:37,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:37,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:15:37,938 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:37,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1789755734, now seen corresponding path program 1 times [2024-11-09 23:15:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766838453] [2024-11-09 23:15:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:37,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 23:15:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:15:38,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:38,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766838453] [2024-11-09 23:15:38,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766838453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:38,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:38,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:15:38,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318853585] [2024-11-09 23:15:38,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:38,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:15:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:15:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:15:38,093 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:38,228 INFO L93 Difference]: Finished difference Result 278 states and 354 transitions. [2024-11-09 23:15:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:15:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-09 23:15:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:38,230 INFO L225 Difference]: With dead ends: 278 [2024-11-09 23:15:38,230 INFO L226 Difference]: Without dead ends: 145 [2024-11-09 23:15:38,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:15:38,232 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 126 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:38,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 268 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:15:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-09 23:15:38,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-11-09 23:15:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 111 states have (on average 1.2522522522522523) internal successors, (139), 119 states have internal predecessors, (139), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-09 23:15:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2024-11-09 23:15:38,248 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 51 [2024-11-09 23:15:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:38,249 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2024-11-09 23:15:38,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 23:15:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2024-11-09 23:15:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 23:15:38,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:38,250 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:38,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:15:38,251 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:38,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash -403552340, now seen corresponding path program 1 times [2024-11-09 23:15:38,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932382408] [2024-11-09 23:15:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 23:15:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:15:38,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:38,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932382408] [2024-11-09 23:15:38,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932382408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:38,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:38,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:15:38,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421808945] [2024-11-09 23:15:38,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:38,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:15:38,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:38,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:15:38,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:15:38,355 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 23:15:38,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:38,567 INFO L93 Difference]: Finished difference Result 395 states and 512 transitions. [2024-11-09 23:15:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:15:38,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2024-11-09 23:15:38,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:38,571 INFO L225 Difference]: With dead ends: 395 [2024-11-09 23:15:38,571 INFO L226 Difference]: Without dead ends: 260 [2024-11-09 23:15:38,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:15:38,573 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 188 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:38,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 287 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:15:38,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-09 23:15:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2024-11-09 23:15:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 197 states have (on average 1.233502538071066) internal successors, (243), 209 states have internal predecessors, (243), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (49), 30 states have call predecessors, (49), 30 states have call successors, (49) [2024-11-09 23:15:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 322 transitions. [2024-11-09 23:15:38,600 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 322 transitions. Word has length 51 [2024-11-09 23:15:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:38,600 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 322 transitions. [2024-11-09 23:15:38,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 23:15:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 322 transitions. [2024-11-09 23:15:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 23:15:38,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:38,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:15:38,603 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:38,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash -943228918, now seen corresponding path program 1 times [2024-11-09 23:15:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682042383] [2024-11-09 23:15:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:15:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:15:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 23:15:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 23:15:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682042383] [2024-11-09 23:15:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682042383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:38,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:15:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625788702] [2024-11-09 23:15:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:15:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:38,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:15:38,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:15:38,749 INFO L87 Difference]: Start difference. First operand 257 states and 322 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:15:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:39,223 INFO L93 Difference]: Finished difference Result 867 states and 1128 transitions. [2024-11-09 23:15:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 23:15:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-09 23:15:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:39,228 INFO L225 Difference]: With dead ends: 867 [2024-11-09 23:15:39,228 INFO L226 Difference]: Without dead ends: 617 [2024-11-09 23:15:39,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:15:39,229 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 296 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:39,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 371 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:15:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-09 23:15:39,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2024-11-09 23:15:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 449 states have (on average 1.2026726057906458) internal successors, (540), 480 states have internal predecessors, (540), 72 states have call successors, (72), 56 states have call predecessors, (72), 68 states have return successors, (135), 76 states have call predecessors, (135), 72 states have call successors, (135) [2024-11-09 23:15:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 747 transitions. [2024-11-09 23:15:39,295 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 747 transitions. Word has length 55 [2024-11-09 23:15:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:39,296 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 747 transitions. [2024-11-09 23:15:39,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 23:15:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 747 transitions. [2024-11-09 23:15:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:15:39,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:39,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:39,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:15:39,300 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:39,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1741005577, now seen corresponding path program 1 times [2024-11-09 23:15:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936713202] [2024-11-09 23:15:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:15:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 23:15:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 23:15:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:15:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 23:15:39,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936713202] [2024-11-09 23:15:39,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936713202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:15:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485874239] [2024-11-09 23:15:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:39,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:39,541 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 23:15:39,543 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 23:15:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:39,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:15:39,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:15:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:15:39,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:15:39,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485874239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:39,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:15:39,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-09 23:15:39,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410334099] [2024-11-09 23:15:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:39,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:15:39,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:15:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:15:39,815 INFO L87 Difference]: Start difference. First operand 590 states and 747 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 23:15:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:39,983 INFO L93 Difference]: Finished difference Result 1140 states and 1450 transitions. [2024-11-09 23:15:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:15:39,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-09 23:15:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:39,987 INFO L225 Difference]: With dead ends: 1140 [2024-11-09 23:15:39,987 INFO L226 Difference]: Without dead ends: 557 [2024-11-09 23:15:39,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:15:39,990 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 59 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:39,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 809 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:15:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-09 23:15:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-09 23:15:40,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 423 states have (on average 1.1891252955082743) internal successors, (503), 453 states have internal predecessors, (503), 69 states have call successors, (69), 54 states have call predecessors, (69), 64 states have return successors, (116), 71 states have call predecessors, (116), 69 states have call successors, (116) [2024-11-09 23:15:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 688 transitions. [2024-11-09 23:15:40,037 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 688 transitions. Word has length 59 [2024-11-09 23:15:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:40,037 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 688 transitions. [2024-11-09 23:15:40,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 23:15:40,038 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 688 transitions. [2024-11-09 23:15:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 23:15:40,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:40,040 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:40,058 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 23:15:40,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:15:40,241 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:40,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1336734648, now seen corresponding path program 1 times [2024-11-09 23:15:40,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:40,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356937709] [2024-11-09 23:15:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:40,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:15:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:15:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:15:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:15:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:15:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:15:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:15:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:15:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356937709] [2024-11-09 23:15:40,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356937709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:15:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702287316] [2024-11-09 23:15:40,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:40,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:40,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:40,488 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 23:15:40,490 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 23:15:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:40,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 23:15:40,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:15:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:15:40,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:15:40,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702287316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:40,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:15:40,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11 [2024-11-09 23:15:40,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908453995] [2024-11-09 23:15:40,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:40,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:15:40,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:40,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:15:40,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:15:40,675 INFO L87 Difference]: Start difference. First operand 557 states and 688 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 23:15:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:40,833 INFO L93 Difference]: Finished difference Result 1286 states and 1676 transitions. [2024-11-09 23:15:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:15:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2024-11-09 23:15:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:40,841 INFO L225 Difference]: With dead ends: 1286 [2024-11-09 23:15:40,841 INFO L226 Difference]: Without dead ends: 830 [2024-11-09 23:15:40,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:15:40,844 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 100 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:40,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 538 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:15:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-09 23:15:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 769. [2024-11-09 23:15:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 581 states have (on average 1.1962134251290877) internal successors, (695), 623 states have internal predecessors, (695), 97 states have call successors, (97), 78 states have call predecessors, (97), 90 states have return successors, (172), 95 states have call predecessors, (172), 97 states have call successors, (172) [2024-11-09 23:15:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 964 transitions. [2024-11-09 23:15:40,916 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 964 transitions. Word has length 97 [2024-11-09 23:15:40,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:40,917 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 964 transitions. [2024-11-09 23:15:40,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 23:15:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 964 transitions. [2024-11-09 23:15:40,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 23:15:40,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:40,919 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:40,938 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 23:15:41,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 23:15:41,121 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:41,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:41,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1403741401, now seen corresponding path program 1 times [2024-11-09 23:15:41,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:41,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133404282] [2024-11-09 23:15:41,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:41,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:15:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:15:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:15:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:15:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:15:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:15:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:15:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:15:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:15:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 23:15:41,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:41,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133404282] [2024-11-09 23:15:41,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133404282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:15:41,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98656065] [2024-11-09 23:15:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:41,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:41,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:15:41,254 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 23:15:41,255 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 23:15:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:41,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 23:15:41,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:15:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 23:15:41,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:15:41,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98656065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:41,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:15:41,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:15:41,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752996431] [2024-11-09 23:15:41,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:41,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:15:41,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:15:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:15:41,391 INFO L87 Difference]: Start difference. First operand 769 states and 964 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 23:15:41,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:15:41,431 INFO L93 Difference]: Finished difference Result 1078 states and 1344 transitions. [2024-11-09 23:15:41,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:15:41,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-09 23:15:41,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:15:41,433 INFO L225 Difference]: With dead ends: 1078 [2024-11-09 23:15:41,433 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:15:41,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:15:41,437 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:15:41,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:15:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:15:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:15:41,438 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 23:15:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:15:41,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-09 23:15:41,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:41,439 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:15:41,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 23:15:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:15:41,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:15:41,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:15:41,460 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 23:15:41,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:15:41,646 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:41,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:15:43,862 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:15:43,894 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse3 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse3 .cse1 .cse2))) (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (or (not .cse3) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse3 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse3 .cse1 .cse2))) (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse3) (= ~methaneLevelCritical~0 0))))) [2024-11-09 23:15:43,903 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 23:15:43,913 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (<= 1 |old(~waterLevel~0)|)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (<= 2 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse5) (and .cse4 .cse1 .cse5))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse5 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2 .cse5) (and .cse4 .cse1 .cse2) (and .cse3 .cse0 .cse2 .cse5))) [2024-11-09 23:15:43,941 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)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 ~waterLevel~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1)))) [2024-11-09 23:15:43,951 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse3 .cse1 (<= 2 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse2 (<= 1 ~methaneLevelCritical~0) .cse1 .cse3) (and .cse2 .cse0 .cse1 .cse3))) [2024-11-09 23:15:43,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:15:43 BoogieIcfgContainer [2024-11-09 23:15:43,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:15:43,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:15:43,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:15:43,960 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:15:43,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:15:36" (3/4) ... [2024-11-09 23:15:43,962 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:15:43,966 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:15:43,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-11-09 23:15:43,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:15:43,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:15:43,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:15:43,974 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:15:44,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:15:44,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:15:44,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:15:44,090 INFO L158 Benchmark]: Toolchain (without parser) took 9135.35ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 114.0MB in the beginning and 233.7MB in the end (delta: -119.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,090 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 172.0MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:15:44,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.49ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 92.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.05ms. Allocated memory is still 172.0MB. Free memory was 92.2MB in the beginning and 89.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,091 INFO L158 Benchmark]: Boogie Preprocessor took 56.30ms. Allocated memory is still 172.0MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,092 INFO L158 Benchmark]: IcfgBuilder took 465.11ms. Allocated memory is still 172.0MB. Free memory was 87.6MB in the beginning and 67.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,092 INFO L158 Benchmark]: TraceAbstraction took 7903.95ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 67.1MB in the beginning and 241.1MB in the end (delta: -174.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,092 INFO L158 Benchmark]: Witness Printer took 130.40ms. Allocated memory is still 299.9MB. Free memory was 241.1MB in the beginning and 233.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:15:44,094 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 172.0MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.49ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 92.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.05ms. Allocated memory is still 172.0MB. Free memory was 92.2MB in the beginning and 89.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.30ms. Allocated memory is still 172.0MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 465.11ms. Allocated memory is still 172.0MB. Free memory was 87.6MB in the beginning and 67.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7903.95ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 67.1MB in the beginning and 241.1MB in the end (delta: -174.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Witness Printer took 130.40ms. Allocated memory is still 299.9MB. Free memory was 241.1MB in the beginning and 233.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116] - GenericResultAtLocation [Line: 482]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] - GenericResultAtLocation [Line: 551]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551] - GenericResultAtLocation [Line: 773]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773] - GenericResultAtLocation [Line: 869]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869] - GenericResultAtLocation [Line: 973]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 978]: 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 8 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1136 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1110 mSDsluCounter, 3817 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2595 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1004 IncrementalHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 1222 mSDtfsCounter, 1004 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 343 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=769occurred in iteration=11, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 103 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 862 ConstructedInterpolants, 0 QuantifiedInterpolants, 1461 SizeOfPredicates, 2 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 132/138 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: 785]: Location Invariant Derived location invariant: null - InvariantResult [Line: 497]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 586]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 897]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) && (1 <= waterLevel)) || (((\old(methaneLevelCritical) == 0) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (1 <= waterLevel))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 775]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 562]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= waterLevel))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (2 <= \old(waterLevel)))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (2 <= \old(waterLevel)))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)))) && ((((head == \old(head)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 909]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: (((\result == methaneLevelCritical) && ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel)))) && ((((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 594]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= waterLevel)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (1 <= waterLevel)))) Ensures: (((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)))) && ((waterLevel != 1) || (pumpRunning == 0))) && (((((head == \old(head)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 885]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (1 <= waterLevel))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: ((((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && ((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= \old(waterLevel))) || ((1 <= methaneLevelCritical) && (1 <= \old(waterLevel))))) && (((pumpRunning == 0) && (1 == systemActive)) || (methaneLevelCritical < 1))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (2 <= waterLevel)))) && (((((head == \old(head)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:15:44,123 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