./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.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 b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:41:57,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:41:57,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:41:57,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:41:57,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:41:57,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:41:57,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:41:57,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:41:57,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:41:57,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:41:57,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:41:57,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:41:57,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:41:57,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:41:57,655 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:41:57,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:41:57,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:41:57,655 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:41:57,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:41:57,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:41:57,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:41:57,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:41:57,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:41:57,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:41:57,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:41:57,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:41:57,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:41:57,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:41:57,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:41:57,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:41:57,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:41:57,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:41:57,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d [2024-10-12 19:41:57,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:41:57,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:41:57,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:41:57,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:41:57,924 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:41:57,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2024-10-12 19:41:59,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:41:59,651 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:41:59,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2024-10-12 19:41:59,679 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a21002c/b3bc8bea3e6b45c3abf56f9286e60dc3/FLAG6151a349e [2024-10-12 19:41:59,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a21002c/b3bc8bea3e6b45c3abf56f9286e60dc3 [2024-10-12 19:41:59,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:41:59,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:41:59,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:41:59,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:42:00,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:42:00,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:59" (1/1) ... [2024-10-12 19:42:00,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282802d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00, skipping insertion in model container [2024-10-12 19:42:00,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:59" (1/1) ... [2024-10-12 19:42:00,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:42:00,349 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2024-10-12 19:42:00,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:42:00,385 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:42:00,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-10-12 19:42:00,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] [2024-10-12 19:42:00,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [182] [2024-10-12 19:42:00,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] [2024-10-12 19:42:00,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] [2024-10-12 19:42:00,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [767] [2024-10-12 19:42:00,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] [2024-10-12 19:42:00,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [928] [2024-10-12 19:42:00,427 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2024-10-12 19:42:00,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:42:00,454 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:42:00,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00 WrapperNode [2024-10-12 19:42:00,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:42:00,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:42:00,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:42:00,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:42:00,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,497 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 209 [2024-10-12 19:42:00,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:42:00,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:42:00,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:42:00,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:42:00,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,519 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,538 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]. [2024-10-12 19:42:00,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:42:00,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:42:00,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:42:00,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:42:00,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (1/1) ... [2024-10-12 19:42:00,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:42:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:42:00,591 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) [2024-10-12 19:42:00,596 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 [2024-10-12 19:42:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:42:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:42:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:42:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:42:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:42:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:42:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:42:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:42:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:42:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:42:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:42:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-12 19:42:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-12 19:42:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:42:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:42:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:42:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:42:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:42:00,724 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:42:00,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:42:00,967 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-10-12 19:42:00,968 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:42:01,112 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:42:01,117 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:42:01,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:42:01 BoogieIcfgContainer [2024-10-12 19:42:01,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:42:01,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:42:01,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:42:01,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:42:01,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:41:59" (1/3) ... [2024-10-12 19:42:01,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c703fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:42:01, skipping insertion in model container [2024-10-12 19:42:01,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:00" (2/3) ... [2024-10-12 19:42:01,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c703fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:42:01, skipping insertion in model container [2024-10-12 19:42:01,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:42:01" (3/3) ... [2024-10-12 19:42:01,130 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2024-10-12 19:42:01,143 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:42:01,143 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:42:01,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:42:01,229 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;@1bf44dc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:42:01,230 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:42:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 56 states have internal predecessors, (74), 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) [2024-10-12 19:42:01,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 19:42:01,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:01,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:01,252 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:01,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash -214149738, now seen corresponding path program 1 times [2024-10-12 19:42:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:01,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567675928] [2024-10-12 19:42:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:01,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:01,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:01,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567675928] [2024-10-12 19:42:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567675928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:01,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:01,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:42:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398226063] [2024-10-12 19:42:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:01,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:42:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:01,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:42:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:42:01,488 INFO L87 Difference]: Start difference. First operand has 69 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 56 states have internal predecessors, (74), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:01,552 INFO L93 Difference]: Finished difference Result 136 states and 197 transitions. [2024-10-12 19:42:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:42:01,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-12 19:42:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:01,562 INFO L225 Difference]: With dead ends: 136 [2024-10-12 19:42:01,562 INFO L226 Difference]: Without dead ends: 64 [2024-10-12 19:42:01,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:42:01,568 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 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 [2024-10-12 19:42:01,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:42:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-12 19:42:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-12 19:42:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 52 states have internal predecessors, (64), 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) [2024-10-12 19:42:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 87 transitions. [2024-10-12 19:42:01,613 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 87 transitions. Word has length 12 [2024-10-12 19:42:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:01,614 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 87 transitions. [2024-10-12 19:42:01,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2024-10-12 19:42:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 19:42:01,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:01,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:01,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:42:01,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:01,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash 447916883, now seen corresponding path program 1 times [2024-10-12 19:42:01,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:01,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396582498] [2024-10-12 19:42:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:01,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:01,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:01,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396582498] [2024-10-12 19:42:01,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396582498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:01,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:01,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:42:01,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791480001] [2024-10-12 19:42:01,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:01,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:42:01,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:42:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:42:01,808 INFO L87 Difference]: Start difference. First operand 64 states and 87 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:01,851 INFO L93 Difference]: Finished difference Result 101 states and 137 transitions. [2024-10-12 19:42:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:42:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-12 19:42:01,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:01,852 INFO L225 Difference]: With dead ends: 101 [2024-10-12 19:42:01,853 INFO L226 Difference]: Without dead ends: 56 [2024-10-12 19:42:01,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:42:01,854 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 11 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:01,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 117 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:42:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-12 19:42:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-12 19:42:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.45) internal successors, (58), 47 states have internal predecessors, (58), 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) [2024-10-12 19:42:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2024-10-12 19:42:01,864 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 13 [2024-10-12 19:42:01,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:01,865 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-10-12 19:42:01,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2024-10-12 19:42:01,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 19:42:01,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:01,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:01,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:42:01,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:01,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash 684892671, now seen corresponding path program 1 times [2024-10-12 19:42:01,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:01,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826488066] [2024-10-12 19:42:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:01,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:01,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826488066] [2024-10-12 19:42:01,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826488066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:01,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:01,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:42:01,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835205350] [2024-10-12 19:42:01,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:01,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:42:01,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:01,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:42:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:42:01,948 INFO L87 Difference]: Start difference. First operand 56 states and 76 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:01,981 INFO L93 Difference]: Finished difference Result 110 states and 151 transitions. [2024-10-12 19:42:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:42:01,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 19:42:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:01,983 INFO L225 Difference]: With dead ends: 110 [2024-10-12 19:42:01,983 INFO L226 Difference]: Without dead ends: 56 [2024-10-12 19:42:01,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:42:01,984 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:01,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 63 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:42:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-12 19:42:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-12 19:42:01,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 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) [2024-10-12 19:42:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 75 transitions. [2024-10-12 19:42:01,995 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 75 transitions. Word has length 16 [2024-10-12 19:42:01,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:01,995 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 75 transitions. [2024-10-12 19:42:01,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:42:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 75 transitions. [2024-10-12 19:42:01,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 19:42:01,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:01,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:01,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:42:01,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:01,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1625181448, now seen corresponding path program 1 times [2024-10-12 19:42:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:01,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512725216] [2024-10-12 19:42:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:02,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512725216] [2024-10-12 19:42:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512725216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:02,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:42:02,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329468243] [2024-10-12 19:42:02,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:02,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:42:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:42:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:42:02,039 INFO L87 Difference]: Start difference. First operand 56 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-12 19:42:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:02,091 INFO L93 Difference]: Finished difference Result 147 states and 199 transitions. [2024-10-12 19:42:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:42:02,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 23 [2024-10-12 19:42:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:02,093 INFO L225 Difference]: With dead ends: 147 [2024-10-12 19:42:02,093 INFO L226 Difference]: Without dead ends: 93 [2024-10-12 19:42:02,094 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 [2024-10-12 19:42:02,094 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 58 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:02,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 106 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:42:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-12 19:42:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-12 19:42:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.378787878787879) internal successors, (91), 74 states have internal predecessors, (91), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-10-12 19:42:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2024-10-12 19:42:02,107 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 23 [2024-10-12 19:42:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:02,107 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2024-10-12 19:42:02,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-12 19:42:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2024-10-12 19:42:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-12 19:42:02,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:02,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:02,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:42:02,109 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:02,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash -378795245, now seen corresponding path program 1 times [2024-10-12 19:42:02,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:02,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316327184] [2024-10-12 19:42:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:02,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:02,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:02,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316327184] [2024-10-12 19:42:02,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316327184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:02,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:02,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:42:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555913885] [2024-10-12 19:42:02,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:02,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:42:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:42:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:42:02,231 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:42:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:02,398 INFO L93 Difference]: Finished difference Result 109 states and 139 transitions. [2024-10-12 19:42:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:42:02,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-10-12 19:42:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:02,400 INFO L225 Difference]: With dead ends: 109 [2024-10-12 19:42:02,400 INFO L226 Difference]: Without dead ends: 107 [2024-10-12 19:42:02,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 19:42:02,401 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:02,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 138 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:42:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-12 19:42:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-10-12 19:42:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 85 states have internal predecessors, (104), 12 states have call successors, (12), 12 states have call predecessors, (12), 15 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2024-10-12 19:42:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2024-10-12 19:42:02,424 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 31 [2024-10-12 19:42:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:02,424 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2024-10-12 19:42:02,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 19:42:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2024-10-12 19:42:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-12 19:42:02,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:02,425 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] [2024-10-12 19:42:02,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:42:02,426 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:02,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:02,426 INFO L85 PathProgramCache]: Analyzing trace with hash -64206340, now seen corresponding path program 1 times [2024-10-12 19:42:02,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:02,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059404566] [2024-10-12 19:42:02,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:02,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:02,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:02,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059404566] [2024-10-12 19:42:02,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059404566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:02,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:02,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:42:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773184691] [2024-10-12 19:42:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:02,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:42:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:02,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:42:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:42:02,526 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:02,633 INFO L93 Difference]: Finished difference Result 212 states and 280 transitions. [2024-10-12 19:42:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:42:02,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-10-12 19:42:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:02,634 INFO L225 Difference]: With dead ends: 212 [2024-10-12 19:42:02,635 INFO L226 Difference]: Without dead ends: 109 [2024-10-12 19:42:02,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:42:02,636 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 43 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:02,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 147 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:42:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-12 19:42:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2024-10-12 19:42:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 87 states have internal predecessors, (106), 12 states have call successors, (12), 12 states have call predecessors, (12), 15 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2024-10-12 19:42:02,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2024-10-12 19:42:02,661 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 34 [2024-10-12 19:42:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:02,661 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2024-10-12 19:42:02,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2024-10-12 19:42:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-12 19:42:02,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:02,664 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] [2024-10-12 19:42:02,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:42:02,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:02,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1085274694, now seen corresponding path program 1 times [2024-10-12 19:42:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:02,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821297775] [2024-10-12 19:42:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:02,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:02,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:02,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821297775] [2024-10-12 19:42:02,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821297775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:02,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:42:02,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499353779] [2024-10-12 19:42:02,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:02,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:42:02,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:02,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:42:02,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:42:02,781 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:02,909 INFO L93 Difference]: Finished difference Result 216 states and 284 transitions. [2024-10-12 19:42:02,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 19:42:02,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-10-12 19:42:02,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:02,912 INFO L225 Difference]: With dead ends: 216 [2024-10-12 19:42:02,912 INFO L226 Difference]: Without dead ends: 111 [2024-10-12 19:42:02,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:42:02,913 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 112 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:02,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 142 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:42:02,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-12 19:42:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-10-12 19:42:02,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 89 states have internal predecessors, (108), 12 states have call successors, (12), 12 states have call predecessors, (12), 15 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2024-10-12 19:42:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2024-10-12 19:42:02,932 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 34 [2024-10-12 19:42:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:02,933 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2024-10-12 19:42:02,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2024-10-12 19:42:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-12 19:42:02,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:02,937 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] [2024-10-12 19:42:02,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:42:02,937 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:02,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1215547896, now seen corresponding path program 1 times [2024-10-12 19:42:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355220734] [2024-10-12 19:42:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:02,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:03,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:03,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355220734] [2024-10-12 19:42:03,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355220734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:03,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:03,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:42:03,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747760174] [2024-10-12 19:42:03,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:03,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:42:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:42:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:42:03,008 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:03,206 INFO L93 Difference]: Finished difference Result 343 states and 479 transitions. [2024-10-12 19:42:03,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:42:03,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-10-12 19:42:03,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:03,209 INFO L225 Difference]: With dead ends: 343 [2024-10-12 19:42:03,211 INFO L226 Difference]: Without dead ends: 236 [2024-10-12 19:42:03,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:42:03,213 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 165 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:03,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 199 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:42:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-12 19:42:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2024-10-12 19:42:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 185 states have internal predecessors, (229), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (54), 28 states have call predecessors, (54), 30 states have call successors, (54) [2024-10-12 19:42:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 313 transitions. [2024-10-12 19:42:03,250 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 313 transitions. Word has length 34 [2024-10-12 19:42:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:03,250 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 313 transitions. [2024-10-12 19:42:03,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 19:42:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 313 transitions. [2024-10-12 19:42:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-12 19:42:03,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:03,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:03,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:42:03,254 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:03,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash 449770462, now seen corresponding path program 1 times [2024-10-12 19:42:03,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:03,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374994515] [2024-10-12 19:42:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:42:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 19:42:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:03,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:03,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374994515] [2024-10-12 19:42:03,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374994515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:42:03,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:42:03,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:42:03,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275351175] [2024-10-12 19:42:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:42:03,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:42:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:03,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:42:03,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:42:03,335 INFO L87 Difference]: Start difference. First operand 232 states and 313 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 19:42:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:03,625 INFO L93 Difference]: Finished difference Result 499 states and 685 transitions. [2024-10-12 19:42:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 19:42:03,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-12 19:42:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:03,627 INFO L225 Difference]: With dead ends: 499 [2024-10-12 19:42:03,628 INFO L226 Difference]: Without dead ends: 269 [2024-10-12 19:42:03,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-10-12 19:42:03,630 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 154 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:03,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 197 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:42:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-12 19:42:03,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2024-10-12 19:42:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 198 states have (on average 1.303030303030303) internal successors, (258), 215 states have internal predecessors, (258), 34 states have call successors, (34), 30 states have call predecessors, (34), 34 states have return successors, (69), 33 states have call predecessors, (69), 34 states have call successors, (69) [2024-10-12 19:42:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 361 transitions. [2024-10-12 19:42:03,650 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 361 transitions. Word has length 38 [2024-10-12 19:42:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:03,650 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 361 transitions. [2024-10-12 19:42:03,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 19:42:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 361 transitions. [2024-10-12 19:42:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 19:42:03,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:03,653 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:42:03,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:42:03,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:03,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash 647100537, now seen corresponding path program 1 times [2024-10-12 19:42:03,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:03,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065819308] [2024-10-12 19:42:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:42:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:42:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-12 19:42:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:42:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:42:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:42:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:42:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 19:42:03,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:42:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065819308] [2024-10-12 19:42:03,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065819308] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:42:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041834572] [2024-10-12 19:42:03,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:03,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:42:03,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:42:03,803 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) [2024-10-12 19:42:03,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:42:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:42:03,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:42:03,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:42:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:42:03,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:42:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 19:42:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041834572] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:42:04,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:42:04,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2024-10-12 19:42:04,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604442665] [2024-10-12 19:42:04,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:42:04,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 19:42:04,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:42:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 19:42:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 19:42:04,093 INFO L87 Difference]: Start difference. First operand 267 states and 361 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:42:04,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:42:04,473 INFO L93 Difference]: Finished difference Result 674 states and 946 transitions. [2024-10-12 19:42:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 19:42:04,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-10-12 19:42:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:42:04,476 INFO L225 Difference]: With dead ends: 674 [2024-10-12 19:42:04,478 INFO L226 Difference]: Without dead ends: 409 [2024-10-12 19:42:04,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 151 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-10-12 19:42:04,480 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 170 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:42:04,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 255 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:42:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-12 19:42:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 378. [2024-10-12 19:42:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 302 states have internal predecessors, (361), 50 states have call successors, (50), 45 states have call predecessors, (50), 48 states have return successors, (103), 45 states have call predecessors, (103), 50 states have call successors, (103) [2024-10-12 19:42:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 514 transitions. [2024-10-12 19:42:04,509 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 514 transitions. Word has length 69 [2024-10-12 19:42:04,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:42:04,509 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 514 transitions. [2024-10-12 19:42:04,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:42:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 514 transitions. [2024-10-12 19:42:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 19:42:04,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:42:04,512 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:04,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:42:04,712 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 [2024-10-12 19:42:04,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:42:04,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:42:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1734008706, now seen corresponding path program 2 times [2024-10-12 19:42:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:42:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097235275] [2024-10-12 19:42:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:42:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:42:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 19:42:04,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 19:42:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 19:42:04,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 19:42:04,788 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 19:42:04,789 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:42:04,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:42:04,792 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:42:04,871 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:42:04,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:42:04 BoogieIcfgContainer [2024-10-12 19:42:04,873 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:42:04,873 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:42:04,877 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:42:04,877 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:42:04,878 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:42:01" (3/4) ... [2024-10-12 19:42:04,878 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-12 19:42:04,964 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:42:04,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:42:04,969 INFO L158 Benchmark]: Toolchain (without parser) took 4986.66ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 129.0MB in the beginning and 243.8MB in the end (delta: -114.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:42:04,969 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:42:04,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.13ms. Allocated memory is still 188.7MB. Free memory was 129.0MB in the beginning and 108.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.21ms. Allocated memory is still 188.7MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,969 INFO L158 Benchmark]: Boogie Preprocessor took 55.52ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 103.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,970 INFO L158 Benchmark]: RCFGBuilder took 560.79ms. Allocated memory is still 188.7MB. Free memory was 103.1MB in the beginning and 80.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,970 INFO L158 Benchmark]: TraceAbstraction took 3752.66ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 79.3MB in the beginning and 252.2MB in the end (delta: -172.9MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,970 INFO L158 Benchmark]: Witness Printer took 94.82ms. Allocated memory is still 293.6MB. Free memory was 252.2MB in the beginning and 243.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 19:42:04,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.13ms. Allocated memory is still 188.7MB. Free memory was 129.0MB in the beginning and 108.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.21ms. Allocated memory is still 188.7MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.52ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 103.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 560.79ms. Allocated memory is still 188.7MB. Free memory was 103.1MB in the beginning and 80.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3752.66ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 79.3MB in the beginning and 252.2MB in the end (delta: -172.9MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. * Witness Printer took 94.82ms. Allocated memory is still 293.6MB. Free memory was 252.2MB in the beginning and 243.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] - GenericResultAtLocation [Line: 182]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [182] - GenericResultAtLocation [Line: 548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] - GenericResultAtLocation [Line: 767]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [767] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [928] * 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 - CounterExampleResult [Line: 553]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L768] int waterLevel = 1; [L769] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L955] int retValue_acc ; [L958] retValue_acc = 1 [L959] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L863] int splverifierCounter ; [L864] int tmp ; [L865] int tmp___0 ; [L866] int tmp___1 ; [L867] int tmp___2 ; [L870] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L872] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L874] COND TRUE splverifierCounter < 4 [L880] tmp = __VERIFIER_nondet_int() [L882] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L884] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L786] COND TRUE waterLevel < 2 [L787] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L884] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L890] tmp___0 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L900] tmp___2 = __VERIFIER_nondet_int() [L902] COND TRUE \read(tmp___2) [L904] CALL startSystem() [L763] systemActive = 1 [L904] RET startSystem() [L917] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] COND TRUE \read(systemActive) [L581] CALL processEnvironment() [L627] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L630] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L601] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE ! pumpRunning [L606] CALL, EXPR isHighWaterLevel() [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L747] CALL, EXPR isHighWaterSensorDry() [L848] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] COND FALSE !(waterLevel < 2) [L855] retValue_acc = 0 [L856] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] RET, EXPR isHighWaterSensorDry() [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L606] RET, EXPR isHighWaterLevel() [L606] tmp = isHighWaterLevel() [L608] COND TRUE \read(tmp) [L610] CALL activatePump() [L660] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L664] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L685] int retValue_acc ; [L689] CALL, EXPR isMethaneLevelCritical() [L807] int retValue_acc ; [L810] retValue_acc = methaneLevelCritical [L811] return (retValue_acc); [L689] RET, EXPR isMethaneLevelCritical() [L689] retValue_acc = isMethaneLevelCritical() [L691] return (retValue_acc); [L664] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L664] tmp = isMethaneAlarm() [L666] COND FALSE !(\read(tmp)) [L670] CALL activatePump__wrappee__highWaterSensor() [L655] pumpRunning = 1 [L670] RET activatePump__wrappee__highWaterSensor() [L610] RET activatePump() [L645] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L581] RET processEnvironment() [L587] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L839] int retValue_acc ; [L842] retValue_acc = waterLevel [L843] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L587] RET __utac_acc__Specification4_spec__1() [L917] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L872] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L874] COND TRUE splverifierCounter < 4 [L880] tmp = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L890] tmp___0 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L900] tmp___2 = __VERIFIER_nondet_int() [L902] COND TRUE \read(tmp___2) [L904] CALL startSystem() [L763] systemActive = 1 [L904] RET startSystem() [L917] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L572] COND TRUE \read(pumpRunning) [L574] CALL lowerWaterLevel() [L774] COND TRUE waterLevel > 0 [L775] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L574] RET lowerWaterLevel() [L579] COND TRUE \read(systemActive) [L581] CALL processEnvironment() [L627] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L630] COND TRUE \read(pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] int retValue_acc ; [L689] CALL, EXPR isMethaneLevelCritical() [L807] int retValue_acc ; [L810] retValue_acc = methaneLevelCritical [L811] return (retValue_acc); [L689] RET, EXPR isMethaneLevelCritical() [L689] retValue_acc = isMethaneLevelCritical() [L691] return (retValue_acc); [L632] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] tmp = isMethaneAlarm() [L634] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L640] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L601] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L604] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L619] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L640] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L581] RET processEnvironment() [L587] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L839] int retValue_acc ; [L842] retValue_acc = waterLevel [L843] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L587] RET __utac_acc__Specification4_spec__1() [L917] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L872] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L874] COND TRUE splverifierCounter < 4 [L880] tmp = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L890] tmp___0 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L900] tmp___2 = __VERIFIER_nondet_int() [L902] COND TRUE \read(tmp___2) [L904] CALL startSystem() [L763] systemActive = 1 [L904] RET startSystem() [L917] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] COND TRUE \read(pumpRunning) [L574] CALL lowerWaterLevel() [L774] COND TRUE waterLevel > 0 [L775] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L574] RET lowerWaterLevel() [L579] COND TRUE \read(systemActive) [L581] CALL processEnvironment() [L627] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L630] COND TRUE \read(pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L685] int retValue_acc ; [L689] CALL, EXPR isMethaneLevelCritical() [L807] int retValue_acc ; [L810] retValue_acc = methaneLevelCritical [L811] return (retValue_acc); [L689] RET, EXPR isMethaneLevelCritical() [L689] retValue_acc = isMethaneLevelCritical() [L691] return (retValue_acc); [L632] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] tmp = isMethaneAlarm() [L634] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L640] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L601] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L604] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L619] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L640] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L581] RET processEnvironment() [L587] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L839] int retValue_acc ; [L842] retValue_acc = waterLevel [L843] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND TRUE tmp == 0 [L167] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] tmp___0 = isPumpRunning() [L169] COND TRUE \read(tmp___0) [L171] CALL __automaton_fail() [L553] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 911 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 885 mSDsluCounter, 1443 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 850 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1269 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 593 mSDtfsCounter, 1269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 198 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=10, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 45 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 2 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 42/60 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-12 19:42:05,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE