./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_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_product49.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 dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:07:29,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:07:29,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:07:29,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:07:29,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:07:29,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:07:29,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:07:29,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:07:29,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:07:29,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:07:29,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:07:29,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:07:29,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:07:29,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:07:29,272 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:07:29,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:07:29,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:07:29,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:07:29,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:07:29,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:07:29,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:07:29,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:07:29,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:07:29,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:07:29,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:07:29,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:07:29,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:07:29,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:07:29,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:07:29,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:07:29,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:07:29,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:07:29,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:07:29,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:07:29,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:07:29,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:07:29,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:07:29,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:07:29,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:07:29,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:07:29,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:07:29,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:07:29,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2024-11-19 22:07:29,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:07:29,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:07:29,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:07:29,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:07:29,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:07:29,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2024-11-19 22:07:30,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:07:31,044 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:07:31,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2024-11-19 22:07:31,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68af3af96/4590b8c3047e4730b2d0f6c4a97e617b/FLAGe74cdb7d8 [2024-11-19 22:07:31,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68af3af96/4590b8c3047e4730b2d0f6c4a97e617b [2024-11-19 22:07:31,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:07:31,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:07:31,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:07:31,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:07:31,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:07:31,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644e6e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31, skipping insertion in model container [2024-11-19 22:07:31,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:07:31,611 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2024-11-19 22:07:31,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:07:31,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:07:31,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-19 22:07:31,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] [2024-11-19 22:07:31,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-11-19 22:07:31,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] [2024-11-19 22:07:31,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [472] [2024-11-19 22:07:31,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [537] [2024-11-19 22:07:31,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [572] [2024-11-19 22:07:31,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] [2024-11-19 22:07:31,762 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2024-11-19 22:07:31,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:07:31,832 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:07:31,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31 WrapperNode [2024-11-19 22:07:31,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:07:31,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:07:31,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:07:31,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:07:31,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,875 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 204 [2024-11-19 22:07:31,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:07:31,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:07:31,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:07:31,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:07:31,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,908 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 22:07:31,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:07:31,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:07:31,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:07:31,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:07:31,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (1/1) ... [2024-11-19 22:07:31,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:07:31,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:31,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 22:07:31,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 22:07:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:07:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:07:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:07:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:07:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:07:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:07:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:07:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:07:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:07:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:07:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:07:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:07:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:07:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:07:32,087 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:07:32,089 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:07:32,346 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-19 22:07:32,347 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:07:32,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:07:32,368 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:07:32,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:32 BoogieIcfgContainer [2024-11-19 22:07:32,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:07:32,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:07:32,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:07:32,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:07:32,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:07:31" (1/3) ... [2024-11-19 22:07:32,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e21300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:32, skipping insertion in model container [2024-11-19 22:07:32,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:31" (2/3) ... [2024-11-19 22:07:32,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e21300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:32, skipping insertion in model container [2024-11-19 22:07:32,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:32" (3/3) ... [2024-11-19 22:07:32,379 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2024-11-19 22:07:32,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:07:32,396 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:07:32,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:07:32,493 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;@65ff45e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:07:32,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:07:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 22:07:32,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 22:07:32,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:32,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:32,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:32,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1722090408, now seen corresponding path program 1 times [2024-11-19 22:07:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:32,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764486066] [2024-11-19 22:07:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:32,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:32,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:32,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764486066] [2024-11-19 22:07:32,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764486066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:32,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:32,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:07:32,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046300720] [2024-11-19 22:07:32,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:32,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:07:32,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:07:32,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:07:32,758 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:32,783 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2024-11-19 22:07:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:07:32,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 19 [2024-11-19 22:07:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:32,793 INFO L225 Difference]: With dead ends: 156 [2024-11-19 22:07:32,793 INFO L226 Difference]: Without dead ends: 73 [2024-11-19 22:07:32,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:07:32,801 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:32,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-19 22:07:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-19 22:07:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 22:07:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2024-11-19 22:07:32,842 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 19 [2024-11-19 22:07:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:32,843 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2024-11-19 22:07:32,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2024-11-19 22:07:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 22:07:32,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:32,846 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] [2024-11-19 22:07:32,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:07:32,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:32,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1895744144, now seen corresponding path program 1 times [2024-11-19 22:07:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204387938] [2024-11-19 22:07:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204387938] [2024-11-19 22:07:32,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204387938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:32,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:32,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:07:32,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266758554] [2024-11-19 22:07:32,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:32,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:07:32,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:07:32,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:32,951 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:32,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:32,970 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2024-11-19 22:07:32,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:07:32,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2024-11-19 22:07:32,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:32,972 INFO L225 Difference]: With dead ends: 112 [2024-11-19 22:07:32,972 INFO L226 Difference]: Without dead ends: 64 [2024-11-19 22:07:32,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:32,974 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 12 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:32,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-19 22:07:32,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-19 22:07:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 58 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 22:07:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2024-11-19 22:07:32,981 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 20 [2024-11-19 22:07:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:32,982 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2024-11-19 22:07:32,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2024-11-19 22:07:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 22:07:32,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:32,983 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] [2024-11-19 22:07:32,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:07:32,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:32,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash 540813392, now seen corresponding path program 1 times [2024-11-19 22:07:32,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:32,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802386942] [2024-11-19 22:07:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802386942] [2024-11-19 22:07:33,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802386942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:33,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:33,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:07:33,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653790268] [2024-11-19 22:07:33,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:33,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:07:33,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:33,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:07:33,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:33,098 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:33,111 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2024-11-19 22:07:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:07:33,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 24 [2024-11-19 22:07:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:33,113 INFO L225 Difference]: With dead ends: 121 [2024-11-19 22:07:33,113 INFO L226 Difference]: Without dead ends: 64 [2024-11-19 22:07:33,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:33,115 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:33,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-19 22:07:33,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-19 22:07:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 58 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 22:07:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2024-11-19 22:07:33,126 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2024-11-19 22:07:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:33,127 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2024-11-19 22:07:33,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2024-11-19 22:07:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 22:07:33,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:33,132 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] [2024-11-19 22:07:33,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:07:33,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:33,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash 412315462, now seen corresponding path program 1 times [2024-11-19 22:07:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:33,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515709495] [2024-11-19 22:07:33,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:33,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:33,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515709495] [2024-11-19 22:07:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515709495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:33,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:33,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:07:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811928397] [2024-11-19 22:07:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:33,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:07:33,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:07:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:07:33,248 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:33,420 INFO L93 Difference]: Finished difference Result 183 states and 235 transitions. [2024-11-19 22:07:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:07:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 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 [2024-11-19 22:07:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:33,423 INFO L225 Difference]: With dead ends: 183 [2024-11-19 22:07:33,423 INFO L226 Difference]: Without dead ends: 126 [2024-11-19 22:07:33,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:07:33,425 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 164 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:33,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 253 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:07:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-19 22:07:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2024-11-19 22:07:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.28125) internal successors, (123), 103 states have internal predecessors, (123), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-19 22:07:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 148 transitions. [2024-11-19 22:07:33,446 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 148 transitions. Word has length 34 [2024-11-19 22:07:33,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:33,446 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 148 transitions. [2024-11-19 22:07:33,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 148 transitions. [2024-11-19 22:07:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 22:07:33,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:33,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:33,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:07:33,447 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:33,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1451427371, now seen corresponding path program 1 times [2024-11-19 22:07:33,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:33,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516872706] [2024-11-19 22:07:33,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:33,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:33,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516872706] [2024-11-19 22:07:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516872706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:33,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:07:33,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398602530] [2024-11-19 22:07:33,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:33,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:07:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:33,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:07:33,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:07:33,522 INFO L87 Difference]: Start difference. First operand 120 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:33,673 INFO L93 Difference]: Finished difference Result 238 states and 297 transitions. [2024-11-19 22:07:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:07:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-19 22:07:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:33,676 INFO L225 Difference]: With dead ends: 238 [2024-11-19 22:07:33,676 INFO L226 Difference]: Without dead ends: 125 [2024-11-19 22:07:33,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:07:33,677 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 47 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:33,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 323 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:07:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-19 22:07:33,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-11-19 22:07:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 106 states have internal predecessors, (126), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-19 22:07:33,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-11-19 22:07:33,695 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 38 [2024-11-19 22:07:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:33,695 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-11-19 22:07:33,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-11-19 22:07:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 22:07:33,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:33,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:33,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:07:33,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:33,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash 440310121, now seen corresponding path program 1 times [2024-11-19 22:07:33,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:33,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003577410] [2024-11-19 22:07:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:33,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:33,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:33,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003577410] [2024-11-19 22:07:33,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003577410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:33,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:33,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:07:33,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075583714] [2024-11-19 22:07:33,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:33,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:07:33,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:07:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:07:33,824 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:33,942 INFO L93 Difference]: Finished difference Result 243 states and 305 transitions. [2024-11-19 22:07:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:07:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-19 22:07:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:33,945 INFO L225 Difference]: With dead ends: 243 [2024-11-19 22:07:33,946 INFO L226 Difference]: Without dead ends: 127 [2024-11-19 22:07:33,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:07:33,947 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 104 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:33,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 247 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:07:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-19 22:07:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2024-11-19 22:07:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 108 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-19 22:07:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2024-11-19 22:07:33,964 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 38 [2024-11-19 22:07:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:33,965 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2024-11-19 22:07:33,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2024-11-19 22:07:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 22:07:33,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:33,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:33,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:07:33,966 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:33,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:33,967 INFO L85 PathProgramCache]: Analyzing trace with hash -580758233, now seen corresponding path program 1 times [2024-11-19 22:07:33,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:33,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661740165] [2024-11-19 22:07:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:33,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:34,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661740165] [2024-11-19 22:07:34,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661740165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:07:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966752070] [2024-11-19 22:07:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:07:34,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:07:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:07:34,060 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,222 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2024-11-19 22:07:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:07:34,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-19 22:07:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,226 INFO L225 Difference]: With dead ends: 355 [2024-11-19 22:07:34,226 INFO L226 Difference]: Without dead ends: 237 [2024-11-19 22:07:34,227 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 [2024-11-19 22:07:34,227 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 179 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:34,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 259 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:07:34,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-19 22:07:34,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2024-11-19 22:07:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.2596685082872927) internal successors, (228), 192 states have internal predecessors, (228), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2024-11-19 22:07:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2024-11-19 22:07:34,249 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 38 [2024-11-19 22:07:34,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,250 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2024-11-19 22:07:34,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 22:07:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2024-11-19 22:07:34,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 22:07:34,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:34,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:07:34,256 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,257 INFO L85 PathProgramCache]: Analyzing trace with hash -360899650, now seen corresponding path program 1 times [2024-11-19 22:07:34,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14050176] [2024-11-19 22:07:34,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 22:07:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:34,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14050176] [2024-11-19 22:07:34,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14050176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:07:34,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205811076] [2024-11-19 22:07:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:07:34,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:07:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:07:34,353 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,613 INFO L93 Difference]: Finished difference Result 466 states and 600 transitions. [2024-11-19 22:07:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 22:07:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-19 22:07:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,618 INFO L225 Difference]: With dead ends: 466 [2024-11-19 22:07:34,618 INFO L226 Difference]: Without dead ends: 244 [2024-11-19 22:07:34,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-11-19 22:07:34,623 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 190 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:34,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 335 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:07:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-19 22:07:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 225. [2024-11-19 22:07:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 176 states have (on average 1.2329545454545454) internal successors, (217), 188 states have internal predecessors, (217), 23 states have call successors, (23), 23 states have call predecessors, (23), 25 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2024-11-19 22:07:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 278 transitions. [2024-11-19 22:07:34,646 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 278 transitions. Word has length 40 [2024-11-19 22:07:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,648 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 278 transitions. [2024-11-19 22:07:34,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 278 transitions. [2024-11-19 22:07:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 22:07:34,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:07:34,653 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash 871440435, now seen corresponding path program 1 times [2024-11-19 22:07:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307810270] [2024-11-19 22:07:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:07:34,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307810270] [2024-11-19 22:07:34,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307810270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:34,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927276968] [2024-11-19 22:07:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:34,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:34,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:07:34,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:07:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:07:34,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:34,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:07:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927276968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:07:35,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:07:35,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2024-11-19 22:07:35,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062225672] [2024-11-19 22:07:35,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:07:35,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:07:35,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:35,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:07:35,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:07:35,121 INFO L87 Difference]: Start difference. First operand 225 states and 278 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 22:07:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:35,727 INFO L93 Difference]: Finished difference Result 566 states and 734 transitions. [2024-11-19 22:07:35,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 22:07:35,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-11-19 22:07:35,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:35,733 INFO L225 Difference]: With dead ends: 566 [2024-11-19 22:07:35,733 INFO L226 Difference]: Without dead ends: 390 [2024-11-19 22:07:35,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 135 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=205, Invalid=1055, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 22:07:35,736 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 220 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:35,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 706 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:07:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-19 22:07:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 355. [2024-11-19 22:07:35,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 282 states have (on average 1.2234042553191489) internal successors, (345), 301 states have internal predecessors, (345), 34 states have call successors, (34), 33 states have call predecessors, (34), 38 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2024-11-19 22:07:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 440 transitions. [2024-11-19 22:07:35,766 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 440 transitions. Word has length 69 [2024-11-19 22:07:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 440 transitions. [2024-11-19 22:07:35,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 22:07:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 440 transitions. [2024-11-19 22:07:35,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:07:35,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:35,768 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:35,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:07:35,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:35,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:35,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1761843705, now seen corresponding path program 1 times [2024-11-19 22:07:35,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:35,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568734221] [2024-11-19 22:07:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 22:07:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:07:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-19 22:07:36,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:36,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568734221] [2024-11-19 22:07:36,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568734221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:36,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029301114] [2024-11-19 22:07:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:36,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:36,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:36,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:07:36,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:07:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 22:07:36,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-19 22:07:36,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:07:36,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029301114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:36,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:07:36,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2024-11-19 22:07:36,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258882854] [2024-11-19 22:07:36,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:36,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:07:36,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:36,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:07:36,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:07:36,195 INFO L87 Difference]: Start difference. First operand 355 states and 440 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 22:07:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:36,241 INFO L93 Difference]: Finished difference Result 357 states and 441 transitions. [2024-11-19 22:07:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:07:36,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 103 [2024-11-19 22:07:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:36,243 INFO L225 Difference]: With dead ends: 357 [2024-11-19 22:07:36,243 INFO L226 Difference]: Without dead ends: 355 [2024-11-19 22:07:36,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:07:36,244 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 57 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:36,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 282 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-19 22:07:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-19 22:07:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 282 states have (on average 1.2127659574468086) internal successors, (342), 301 states have internal predecessors, (342), 34 states have call successors, (34), 33 states have call predecessors, (34), 38 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2024-11-19 22:07:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 437 transitions. [2024-11-19 22:07:36,262 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 437 transitions. Word has length 103 [2024-11-19 22:07:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:36,263 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 437 transitions. [2024-11-19 22:07:36,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 22:07:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 437 transitions. [2024-11-19 22:07:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 22:07:36,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:36,264 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:36,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 22:07:36,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 22:07:36,465 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:36,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:36,466 INFO L85 PathProgramCache]: Analyzing trace with hash 669923069, now seen corresponding path program 1 times [2024-11-19 22:07:36,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:36,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119112851] [2024-11-19 22:07:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:36,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 22:07:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:07:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:07:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 22:07:36,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119112851] [2024-11-19 22:07:36,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119112851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205312413] [2024-11-19 22:07:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:36,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:07:36,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:07:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 22:07:36,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:37,016 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 65 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:37,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:07:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:07:37,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205312413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:07:37,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:07:37,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 19 [2024-11-19 22:07:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648868650] [2024-11-19 22:07:37,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:07:37,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 22:07:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:37,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 22:07:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:07:37,208 INFO L87 Difference]: Start difference. First operand 355 states and 437 transitions. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-19 22:07:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:37,868 INFO L93 Difference]: Finished difference Result 892 states and 1154 transitions. [2024-11-19 22:07:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 22:07:37,869 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 110 [2024-11-19 22:07:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:37,872 INFO L225 Difference]: With dead ends: 892 [2024-11-19 22:07:37,872 INFO L226 Difference]: Without dead ends: 585 [2024-11-19 22:07:37,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 227 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=766, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 22:07:37,874 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 419 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:37,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 820 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 22:07:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-19 22:07:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 525. [2024-11-19 22:07:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 411 states have (on average 1.2092457420924574) internal successors, (497), 435 states have internal predecessors, (497), 56 states have call successors, (56), 54 states have call predecessors, (56), 57 states have return successors, (91), 51 states have call predecessors, (91), 56 states have call successors, (91) [2024-11-19 22:07:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 644 transitions. [2024-11-19 22:07:37,902 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 644 transitions. Word has length 110 [2024-11-19 22:07:37,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:37,902 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 644 transitions. [2024-11-19 22:07:37,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-19 22:07:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 644 transitions. [2024-11-19 22:07:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 22:07:37,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:37,904 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:37,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 22:07:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:38,105 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:38,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1113823743, now seen corresponding path program 1 times [2024-11-19 22:07:38,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:38,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870358122] [2024-11-19 22:07:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:07:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 22:07:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:07:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:07:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 22:07:38,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:38,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870358122] [2024-11-19 22:07:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870358122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:38,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110220292] [2024-11-19 22:07:38,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:38,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:38,294 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:07:38,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:07:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 22:07:38,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:07:38,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:07:38,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110220292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:38,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:07:38,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-19 22:07:38,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849778262] [2024-11-19 22:07:38,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:38,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:07:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:07:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:07:38,426 INFO L87 Difference]: Start difference. First operand 525 states and 644 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 22:07:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:38,450 INFO L93 Difference]: Finished difference Result 676 states and 824 transitions. [2024-11-19 22:07:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:07:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2024-11-19 22:07:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:38,452 INFO L225 Difference]: With dead ends: 676 [2024-11-19 22:07:38,452 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 22:07:38,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:07:38,453 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:38,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 22:07:38,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 22:07:38,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 22:07:38,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2024-11-19 22:07:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:38,454 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 22:07:38,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 22:07:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 22:07:38,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 22:07:38,457 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:07:38,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 22:07:38,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:38,660 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:38,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 22:07:39,838 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:07:39,858 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-19 22:07:39,866 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse0)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))))) [2024-11-19 22:07:39,869 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-19 22:07:39,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:07:39 BoogieIcfgContainer [2024-11-19 22:07:39,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:07:39,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:07:39,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:07:39,872 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:07:39,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:32" (3/4) ... [2024-11-19 22:07:39,874 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 22:07:39,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-19 22:07:39,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-19 22:07:39,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-19 22:07:39,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-19 22:07:39,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:39,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-19 22:07:39,883 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-19 22:07:39,883 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 22:07:39,884 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 22:07:39,884 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:07:39,884 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:07:39,976 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:07:39,977 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 22:07:39,977 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:07:39,977 INFO L158 Benchmark]: Toolchain (without parser) took 8574.58ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 114.4MB in the beginning and 107.5MB in the end (delta: 6.9MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,978 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:07:39,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.34ms. Allocated memory is still 172.0MB. Free memory was 114.1MB in the beginning and 92.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.48ms. Allocated memory is still 172.0MB. Free memory was 92.7MB in the beginning and 90.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,978 INFO L158 Benchmark]: Boogie Preprocessor took 45.67ms. Allocated memory is still 172.0MB. Free memory was 90.4MB in the beginning and 88.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,978 INFO L158 Benchmark]: RCFGBuilder took 446.46ms. Allocated memory is still 172.0MB. Free memory was 88.0MB in the beginning and 70.4MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,979 INFO L158 Benchmark]: TraceAbstraction took 7500.69ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 69.7MB in the beginning and 114.8MB in the end (delta: -45.1MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,979 INFO L158 Benchmark]: Witness Printer took 105.27ms. Allocated memory is still 228.6MB. Free memory was 114.8MB in the beginning and 107.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 22:07:39,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.34ms. Allocated memory is still 172.0MB. Free memory was 114.1MB in the beginning and 92.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.48ms. Allocated memory is still 172.0MB. Free memory was 92.7MB in the beginning and 90.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.67ms. Allocated memory is still 172.0MB. Free memory was 90.4MB in the beginning and 88.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.46ms. Allocated memory is still 172.0MB. Free memory was 88.0MB in the beginning and 70.4MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7500.69ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 69.7MB in the beginning and 114.8MB in the end (delta: -45.1MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Witness Printer took 105.27ms. Allocated memory is still 228.6MB. Free memory was 114.8MB in the beginning and 107.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [472] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [537] - GenericResultAtLocation [Line: 572]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [572] - GenericResultAtLocation [Line: 598]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1481 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1457 mSDsluCounter, 3846 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2807 mSDsCounter, 299 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2001 IncrementalHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 299 mSolverCounterUnsat, 1039 mSDtfsCounter, 2001 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 768 GetRequests, 633 SyntacticMatches, 9 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=11, InterpolantAutomatonStates: 109, 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, 12 MinimizatonAttempts, 132 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1035 NumberOfCodeBlocks, 1035 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1196 ConstructedInterpolants, 0 QuantifiedInterpolants, 2164 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1269 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 491/542 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 482]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - ProcedureContractResult [Line: 303]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 93]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 279]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((((pumpRunning == 0) && (\old(waterLevel) <= ((long long) waterLevel + 1))) || (((2 <= waterLevel) && (1 == systemActive)) && (\old(waterLevel) == waterLevel))) && (((\old(pumpRunning) != 0) || (((2 <= waterLevel) && (1 == systemActive)) && (\old(waterLevel) == waterLevel))) || (\old(waterLevel) < 2))) && ((\old(waterLevel) != systemActive) || (waterLevel == 1))) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 172]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 311]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 <= waterLevel) && (1 == systemActive)) || ((1 == systemActive) && (waterLevel == 1)))) Ensures: ((((((2 <= waterLevel) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel == 1))) && ((pumpRunning == 0) || ((2 <= waterLevel) && (1 == systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 81]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((1 == systemActive) && ((\old(waterLevel) == 1) || (\old(waterLevel) == waterLevel))) && (1 <= \old(waterLevel))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (2 <= waterLevel)))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-19 22:07:40,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE