./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_product52.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_product52.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 e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:07:30,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:07:30,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:07:30,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:07:30,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:07:30,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:07:30,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:07:30,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:07:30,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:07:30,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:07:30,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:07:30,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:07:30,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:07:30,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:07:30,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:07:30,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:07:30,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:07:30,499 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:07:30,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:07:30,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:07:30,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:07:30,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:07:30,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:07:30,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:07:30,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:07:30,503 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:07:30,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:07:30,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:07:30,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:07:30,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:07:30,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:07:30,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:07:30,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:07:30,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:07:30,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:07:30,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:07:30,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:07:30,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:07:30,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:07:30,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:07:30,508 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:07:30,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:07:30,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 [2024-11-19 22:07:30,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:07:30,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:07:30,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:07:30,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:07:30,818 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:07:30,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2024-11-19 22:07:32,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:07:32,520 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:07:32,521 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2024-11-19 22:07:32,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed014569d/80248770687445f194b3e73a041002b4/FLAG1cd7a2649 [2024-11-19 22:07:32,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed014569d/80248770687445f194b3e73a041002b4 [2024-11-19 22:07:32,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:07:32,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:07:32,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:07:32,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:07:32,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:07:32,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:32" (1/1) ... [2024-11-19 22:07:32,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562ebea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:32, skipping insertion in model container [2024-11-19 22:07:32,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:32" (1/1) ... [2024-11-19 22:07:32,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:07:32,947 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_product52.cil.c[18431,18444] [2024-11-19 22:07:32,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:07:32,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:07:32,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-19 22:07:32,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] [2024-11-19 22:07:32,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] [2024-11-19 22:07:32,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] [2024-11-19 22:07:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] [2024-11-19 22:07:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] [2024-11-19 22:07:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2024-11-19 22:07:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] [2024-11-19 22:07:33,052 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_product52.cil.c[18431,18444] [2024-11-19 22:07:33,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:07:33,087 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:07:33,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33 WrapperNode [2024-11-19 22:07:33,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:07:33,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:07:33,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:07:33,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:07:33,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,148 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 210 [2024-11-19 22:07:33,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:07:33,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:07:33,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:07:33,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:07:33,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,175 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 22:07:33,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:07:33,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:07:33,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:07:33,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:07:33,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (1/1) ... [2024-11-19 22:07:33,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:07:33,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:33,220 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 22:07:33,223 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 22:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-19 22:07:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-19 22:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 22:07:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 22:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 22:07:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 22:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-19 22:07:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-19 22:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-19 22:07:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-19 22:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-19 22:07:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-19 22:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:07:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:07:33,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:07:33,332 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:07:33,577 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-19 22:07:33,577 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:07:33,597 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:07:33,598 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 22:07:33,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:33 BoogieIcfgContainer [2024-11-19 22:07:33,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:07:33,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:07:33,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:07:33,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:07:33,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:07:32" (1/3) ... [2024-11-19 22:07:33,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784bd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:33, skipping insertion in model container [2024-11-19 22:07:33,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:33" (2/3) ... [2024-11-19 22:07:33,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784bd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:33, skipping insertion in model container [2024-11-19 22:07:33,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:33" (3/3) ... [2024-11-19 22:07:33,608 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2024-11-19 22:07:33,625 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:07:33,626 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:07:33,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:07:33,682 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;@3c38ac79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:07:33,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:07:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 78 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 22:07:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 22:07:33,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:33,693 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 22:07:33,693 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:33,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:33,698 INFO L85 PathProgramCache]: Analyzing trace with hash 355859289, now seen corresponding path program 1 times [2024-11-19 22:07:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355363307] [2024-11-19 22:07:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:33,888 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 22:07:33,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355363307] [2024-11-19 22:07:33,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355363307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:33,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:33,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:07:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489459472] [2024-11-19 22:07:33,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:33,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:07:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:07:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:07:33,920 INFO L87 Difference]: Start difference. First operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 78 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) 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 22:07:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:33,947 INFO L93 Difference]: Finished difference Result 172 states and 235 transitions. [2024-11-19 22:07:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:07:33,949 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 22:07:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:33,956 INFO L225 Difference]: With dead ends: 172 [2024-11-19 22:07:33,956 INFO L226 Difference]: Without dead ends: 81 [2024-11-19 22:07:33,959 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 22:07:33,962 INFO L432 NwaCegarLoop]: 114 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, 114 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 22:07:33,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-19 22:07:34,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-19 22:07:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 70 states have internal predecessors, (82), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 22:07:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 105 transitions. [2024-11-19 22:07:34,005 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 105 transitions. Word has length 19 [2024-11-19 22:07:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,005 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 105 transitions. [2024-11-19 22:07:34,005 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 22:07:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2024-11-19 22:07:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 22:07:34,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,007 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 22:07:34,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:07:34,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -730097680, now seen corresponding path program 1 times [2024-11-19 22:07:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137134572] [2024-11-19 22:07:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,137 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 22:07:34,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137134572] [2024-11-19 22:07:34,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137134572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:07:34,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192811907] [2024-11-19 22:07:34,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:07:34,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:07:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:34,144 INFO L87 Difference]: Start difference. First operand 81 states and 105 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 22:07:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,164 INFO L93 Difference]: Finished difference Result 123 states and 159 transitions. [2024-11-19 22:07:34,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:07:34,165 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 22:07:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,167 INFO L225 Difference]: With dead ends: 123 [2024-11-19 22:07:34,167 INFO L226 Difference]: Without dead ends: 72 [2024-11-19 22:07:34,168 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 22:07:34,169 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 162 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 22:07:34,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-19 22:07:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-19 22:07:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 22:07:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2024-11-19 22:07:34,179 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 20 [2024-11-19 22:07:34,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,179 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-11-19 22:07:34,179 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 22:07:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2024-11-19 22:07:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 22:07:34,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:34,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:07:34,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1878665188, now seen corresponding path program 1 times [2024-11-19 22:07:34,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285260521] [2024-11-19 22:07:34,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:34,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285260521] [2024-11-19 22:07:34,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285260521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:07:34,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80243036] [2024-11-19 22:07:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:07:34,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:07:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:34,308 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,347 INFO L93 Difference]: Finished difference Result 200 states and 264 transitions. [2024-11-19 22:07:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:07:34,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-19 22:07:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,349 INFO L225 Difference]: With dead ends: 200 [2024-11-19 22:07:34,349 INFO L226 Difference]: Without dead ends: 135 [2024-11-19 22:07:34,350 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 22:07:34,351 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 71 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:34,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 185 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-19 22:07:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2024-11-19 22:07:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 116 states have internal predecessors, (138), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 22:07:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 174 transitions. [2024-11-19 22:07:34,382 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 174 transitions. Word has length 25 [2024-11-19 22:07:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,382 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 174 transitions. [2024-11-19 22:07:34,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:07:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 174 transitions. [2024-11-19 22:07:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 22:07:34,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,384 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] [2024-11-19 22:07:34,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:07:34,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1340325107, now seen corresponding path program 1 times [2024-11-19 22:07:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245584658] [2024-11-19 22:07:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,555 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 22:07:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245584658] [2024-11-19 22:07:34,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245584658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:07:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198422714] [2024-11-19 22:07:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:07:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:07:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:07:34,559 INFO L87 Difference]: Start difference. First operand 132 states and 174 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 22:07:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,658 INFO L93 Difference]: Finished difference Result 370 states and 507 transitions. [2024-11-19 22:07:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:07:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 28 [2024-11-19 22:07:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,662 INFO L225 Difference]: With dead ends: 370 [2024-11-19 22:07:34,662 INFO L226 Difference]: Without dead ends: 245 [2024-11-19 22:07:34,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 22:07:34,664 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 58 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:34,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 334 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:07:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-19 22:07:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-19 22:07:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 213 states have internal predecessors, (250), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2024-11-19 22:07:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 324 transitions. [2024-11-19 22:07:34,723 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 324 transitions. Word has length 28 [2024-11-19 22:07:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,723 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 324 transitions. [2024-11-19 22:07:34,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 22:07:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 324 transitions. [2024-11-19 22:07:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 22:07:34,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,729 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] [2024-11-19 22:07:34,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:07:34,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1413318200, now seen corresponding path program 1 times [2024-11-19 22:07:34,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870832977] [2024-11-19 22:07:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:34,836 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 22:07:34,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:34,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870832977] [2024-11-19 22:07:34,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870832977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:34,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:07:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864904017] [2024-11-19 22:07:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:34,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:07:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:07:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:07:34,840 INFO L87 Difference]: Start difference. First operand 245 states and 324 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 22:07:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:34,892 INFO L93 Difference]: Finished difference Result 599 states and 813 transitions. [2024-11-19 22:07:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:07:34,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 30 [2024-11-19 22:07:34,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:34,899 INFO L225 Difference]: With dead ends: 599 [2024-11-19 22:07:34,899 INFO L226 Difference]: Without dead ends: 361 [2024-11-19 22:07:34,901 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 22:07:34,902 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 52 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:34,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:07:34,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-19 22:07:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 352. [2024-11-19 22:07:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 273 states have (on average 1.3003663003663004) internal successors, (355), 293 states have internal predecessors, (355), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2024-11-19 22:07:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 455 transitions. [2024-11-19 22:07:34,940 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 455 transitions. Word has length 30 [2024-11-19 22:07:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:34,941 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 455 transitions. [2024-11-19 22:07:34,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 22:07:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 455 transitions. [2024-11-19 22:07:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 22:07:34,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:34,945 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] [2024-11-19 22:07:34,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:07:34,945 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:34,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:34,946 INFO L85 PathProgramCache]: Analyzing trace with hash 515112153, now seen corresponding path program 1 times [2024-11-19 22:07:34,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:34,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995568950] [2024-11-19 22:07:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:34,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,055 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 22:07:35,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:35,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995568950] [2024-11-19 22:07:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995568950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:35,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:35,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:07:35,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749243213] [2024-11-19 22:07:35,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:35,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:07:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:07:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:07:35,060 INFO L87 Difference]: Start difference. First operand 352 states and 455 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 22:07:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:35,324 INFO L93 Difference]: Finished difference Result 422 states and 548 transitions. [2024-11-19 22:07:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:07:35,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 32 [2024-11-19 22:07:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:35,331 INFO L225 Difference]: With dead ends: 422 [2024-11-19 22:07:35,331 INFO L226 Difference]: Without dead ends: 420 [2024-11-19 22:07:35,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:07:35,333 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:35,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 307 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:07:35,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-19 22:07:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 418. [2024-11-19 22:07:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 325 states have (on average 1.2861538461538462) internal successors, (418), 355 states have internal predecessors, (418), 47 states have call successors, (47), 39 states have call predecessors, (47), 45 states have return successors, (77), 40 states have call predecessors, (77), 47 states have call successors, (77) [2024-11-19 22:07:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 542 transitions. [2024-11-19 22:07:35,385 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 542 transitions. Word has length 32 [2024-11-19 22:07:35,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:35,387 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 542 transitions. [2024-11-19 22:07:35,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 22:07:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 542 transitions. [2024-11-19 22:07:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 22:07:35,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:35,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:35,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:07:35,390 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:35,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash 585600178, now seen corresponding path program 1 times [2024-11-19 22:07:35,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:35,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620204700] [2024-11-19 22:07:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:07:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,509 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 22:07:35,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:35,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620204700] [2024-11-19 22:07:35,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620204700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:35,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:35,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:07:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156508296] [2024-11-19 22:07:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:35,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:07:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:07:35,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:07:35,513 INFO L87 Difference]: Start difference. First operand 418 states and 542 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:07:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:35,787 INFO L93 Difference]: Finished difference Result 923 states and 1212 transitions. [2024-11-19 22:07:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:07:35,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-11-19 22:07:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:35,795 INFO L225 Difference]: With dead ends: 923 [2024-11-19 22:07:35,795 INFO L226 Difference]: Without dead ends: 512 [2024-11-19 22:07:35,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:07:35,798 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 120 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:35,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 347 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:07:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-19 22:07:35,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 470. [2024-11-19 22:07:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 371 states have (on average 1.266846361185984) internal successors, (470), 401 states have internal predecessors, (470), 47 states have call successors, (47), 39 states have call predecessors, (47), 51 states have return successors, (85), 44 states have call predecessors, (85), 47 states have call successors, (85) [2024-11-19 22:07:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 602 transitions. [2024-11-19 22:07:35,833 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 602 transitions. Word has length 43 [2024-11-19 22:07:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:35,834 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 602 transitions. [2024-11-19 22:07:35,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:07:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 602 transitions. [2024-11-19 22:07:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 22:07:35,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:35,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:35,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:07:35,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -425517072, now seen corresponding path program 1 times [2024-11-19 22:07:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886368752] [2024-11-19 22:07:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:35,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:07:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:35,940 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 22:07:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:35,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886368752] [2024-11-19 22:07:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886368752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:35,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:35,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:07:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90691680] [2024-11-19 22:07:35,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:35,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:07:35,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:35,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:07:35,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:07:35,942 INFO L87 Difference]: Start difference. First operand 470 states and 602 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:36,309 INFO L93 Difference]: Finished difference Result 923 states and 1199 transitions. [2024-11-19 22:07:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 22:07:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-19 22:07:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:36,312 INFO L225 Difference]: With dead ends: 923 [2024-11-19 22:07:36,312 INFO L226 Difference]: Without dead ends: 460 [2024-11-19 22:07:36,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:07:36,315 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 299 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:36,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 377 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:07:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-19 22:07:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 364. [2024-11-19 22:07:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 287 states have (on average 1.264808362369338) internal successors, (363), 310 states have internal predecessors, (363), 38 states have call successors, (38), 32 states have call predecessors, (38), 38 states have return successors, (60), 33 states have call predecessors, (60), 38 states have call successors, (60) [2024-11-19 22:07:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 461 transitions. [2024-11-19 22:07:36,346 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 461 transitions. Word has length 43 [2024-11-19 22:07:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:36,346 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 461 transitions. [2024-11-19 22:07:36,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 22:07:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 461 transitions. [2024-11-19 22:07:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 22:07:36,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:36,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:36,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:07:36,350 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:36,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:36,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1446585426, now seen corresponding path program 1 times [2024-11-19 22:07:36,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:36,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581171335] [2024-11-19 22:07:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:36,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:07:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:36,489 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 22:07:36,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581171335] [2024-11-19 22:07:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581171335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:36,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:36,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:07:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310688605] [2024-11-19 22:07:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:36,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:07:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:07:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:07:36,492 INFO L87 Difference]: Start difference. First operand 364 states and 461 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:07:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:36,937 INFO L93 Difference]: Finished difference Result 850 states and 1141 transitions. [2024-11-19 22:07:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 22:07:36,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-11-19 22:07:36,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:36,942 INFO L225 Difference]: With dead ends: 850 [2024-11-19 22:07:36,942 INFO L226 Difference]: Without dead ends: 577 [2024-11-19 22:07:36,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:07:36,944 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 182 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:36,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 457 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:07:36,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-19 22:07:36,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 552. [2024-11-19 22:07:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 435 states have (on average 1.2344827586206897) internal successors, (537), 465 states have internal predecessors, (537), 57 states have call successors, (57), 49 states have call predecessors, (57), 59 states have return successors, (115), 58 states have call predecessors, (115), 57 states have call successors, (115) [2024-11-19 22:07:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 709 transitions. [2024-11-19 22:07:36,988 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 709 transitions. Word has length 43 [2024-11-19 22:07:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:36,988 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 709 transitions. [2024-11-19 22:07:36,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 22:07:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 709 transitions. [2024-11-19 22:07:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 22:07:36,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:36,991 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:36,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:07:36,991 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:36,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1821640304, now seen corresponding path program 1 times [2024-11-19 22:07:36,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:36,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982955453] [2024-11-19 22:07:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:36,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:07:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:37,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:37,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982955453] [2024-11-19 22:07:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982955453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:37,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:37,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:07:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126571777] [2024-11-19 22:07:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:37,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:07:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:37,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:07:37,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:07:37,088 INFO L87 Difference]: Start difference. First operand 552 states and 709 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 22:07:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:37,333 INFO L93 Difference]: Finished difference Result 930 states and 1192 transitions. [2024-11-19 22:07:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:07:37,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 66 [2024-11-19 22:07:37,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:37,337 INFO L225 Difference]: With dead ends: 930 [2024-11-19 22:07:37,337 INFO L226 Difference]: Without dead ends: 385 [2024-11-19 22:07:37,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:07:37,340 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 305 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:37,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 271 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:07:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-19 22:07:37,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 368. [2024-11-19 22:07:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.2268041237113403) internal successors, (357), 312 states have internal predecessors, (357), 38 states have call successors, (38), 34 states have call predecessors, (38), 38 states have return successors, (68), 38 states have call predecessors, (68), 38 states have call successors, (68) [2024-11-19 22:07:37,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 463 transitions. [2024-11-19 22:07:37,370 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 463 transitions. Word has length 66 [2024-11-19 22:07:37,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:37,370 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 463 transitions. [2024-11-19 22:07:37,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 22:07:37,371 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 463 transitions. [2024-11-19 22:07:37,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 22:07:37,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:37,374 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:37,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:07:37,374 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:37,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:37,375 INFO L85 PathProgramCache]: Analyzing trace with hash 781656095, now seen corresponding path program 1 times [2024-11-19 22:07:37,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:37,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983512789] [2024-11-19 22:07:37,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:37,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:07:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 22:07:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:07:37,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:37,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983512789] [2024-11-19 22:07:37,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983512789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:37,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563959905] [2024-11-19 22:07:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:37,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:37,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:37,581 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 22:07:37,583 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 22:07:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:37,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:07:37,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:07:37,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:07:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:07:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563959905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:07:37,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:07:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2024-11-19 22:07:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272551875] [2024-11-19 22:07:37,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:07:37,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:07:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:07:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:07:37,927 INFO L87 Difference]: Start difference. First operand 368 states and 463 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 22:07:38,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:38,520 INFO L93 Difference]: Finished difference Result 872 states and 1152 transitions. [2024-11-19 22:07:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 22:07:38,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2024-11-19 22:07:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:38,524 INFO L225 Difference]: With dead ends: 872 [2024-11-19 22:07:38,525 INFO L226 Difference]: Without dead ends: 579 [2024-11-19 22:07:38,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-11-19 22:07:38,527 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 236 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:38,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 562 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 22:07:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-19 22:07:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 498. [2024-11-19 22:07:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 390 states have (on average 1.2333333333333334) internal successors, (481), 420 states have internal predecessors, (481), 54 states have call successors, (54), 48 states have call predecessors, (54), 53 states have return successors, (102), 50 states have call predecessors, (102), 54 states have call successors, (102) [2024-11-19 22:07:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 637 transitions. [2024-11-19 22:07:38,566 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 637 transitions. Word has length 78 [2024-11-19 22:07:38,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:38,567 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 637 transitions. [2024-11-19 22:07:38,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 22:07:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 637 transitions. [2024-11-19 22:07:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 22:07:38,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:38,569 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 22:07:38,579 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 22:07:38,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 22:07:38,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:38,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash 313015822, now seen corresponding path program 2 times [2024-11-19 22:07:38,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:38,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203195494] [2024-11-19 22:07:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:38,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:38,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:07:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:07:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:07:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:07:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 22:07:39,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:39,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203195494] [2024-11-19 22:07:39,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203195494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:07:39,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075252010] [2024-11-19 22:07:39,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 22:07:39,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:07:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:07:39,224 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 22:07:39,226 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 22:07:39,319 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 22:07:39,319 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 22:07:39,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 22:07:39,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:07:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 22:07:39,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:07:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:07:39,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075252010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:07:39,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:07:39,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 19 [2024-11-19 22:07:39,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26056111] [2024-11-19 22:07:39,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:07:39,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 22:07:39,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 22:07:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:07:39,706 INFO L87 Difference]: Start difference. First operand 498 states and 637 transitions. Second operand has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 17 states have internal predecessors, (175), 7 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-19 22:07:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:41,251 INFO L93 Difference]: Finished difference Result 1488 states and 2006 transitions. [2024-11-19 22:07:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-19 22:07:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 17 states have internal predecessors, (175), 7 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 113 [2024-11-19 22:07:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:41,259 INFO L225 Difference]: With dead ends: 1488 [2024-11-19 22:07:41,259 INFO L226 Difference]: Without dead ends: 1064 [2024-11-19 22:07:41,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 238 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=1732, Unknown=0, NotChecked=0, Total=2162 [2024-11-19 22:07:41,264 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 525 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:41,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1747 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 22:07:41,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-19 22:07:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 965. [2024-11-19 22:07:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 756 states have (on average 1.2328042328042328) internal successors, (932), 808 states have internal predecessors, (932), 107 states have call successors, (107), 97 states have call predecessors, (107), 101 states have return successors, (182), 99 states have call predecessors, (182), 107 states have call successors, (182) [2024-11-19 22:07:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1221 transitions. [2024-11-19 22:07:41,349 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1221 transitions. Word has length 113 [2024-11-19 22:07:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:41,349 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1221 transitions. [2024-11-19 22:07:41,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 17 states have internal predecessors, (175), 7 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-19 22:07:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1221 transitions. [2024-11-19 22:07:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 22:07:41,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:07:41,352 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 22:07:41,361 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 22:07:41,556 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,SelfDestructingSolverStorable11 [2024-11-19 22:07:41,557 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:07:41,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:07:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1189034828, now seen corresponding path program 1 times [2024-11-19 22:07:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:07:41,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062201045] [2024-11-19 22:07:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:07:41,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:07:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 22:07:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-19 22:07:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:07:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:07:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:07:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:07:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 22:07:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:07:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 22:07:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:07:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062201045] [2024-11-19 22:07:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062201045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:07:41,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:07:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:07:41,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016380003] [2024-11-19 22:07:41,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:07:41,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:07:41,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:07:41,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:07:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:07:41,705 INFO L87 Difference]: Start difference. First operand 965 states and 1221 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 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 22:07:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:07:41,918 INFO L93 Difference]: Finished difference Result 1240 states and 1547 transitions. [2024-11-19 22:07:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:07:41,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 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 113 [2024-11-19 22:07:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:07:41,920 INFO L225 Difference]: With dead ends: 1240 [2024-11-19 22:07:41,920 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 22:07:41,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:07:41,924 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:07:41,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 256 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:07:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 22:07:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 22:07:41,926 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 22:07:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 22:07:41,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2024-11-19 22:07:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:07:41,927 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 22:07:41,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 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 22:07:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 22:07:41,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 22:07:41,931 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 22:07:41,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:07:41,934 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:07:41,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 22:07:43,498 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 22:07:43,514 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))))) Eliminated clause: (or (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2024-11-19 22:07:43,530 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~waterLevel~0)|))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse1 .cse2))) (or (= ~pumpRunning~0 0) (not .cse2)) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1) (and .cse2 .cse3))) (or .cse0 (not .cse3)))) [2024-11-19 22:07:43,541 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-19 22:07:43,547 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (<= 1 |old(~waterLevel~0)|))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse1 .cse0 .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (= 0 ~systemActive~0)))) [2024-11-19 22:07:43,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:07:43 BoogieIcfgContainer [2024-11-19 22:07:43,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 22:07:43,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 22:07:43,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 22:07:43,555 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 22:07:43,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:33" (3/4) ... [2024-11-19 22:07:43,558 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 22:07:43,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-19 22:07:43,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-19 22:07:43,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-19 22:07:43,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-19 22:07:43,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-19 22:07:43,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-19 22:07:43,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-19 22:07:43,572 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-19 22:07:43,572 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 22:07:43,573 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 22:07:43,573 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:07:43,573 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 22:07:43,696 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 22:07:43,696 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 22:07:43,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 22:07:43,697 INFO L158 Benchmark]: Toolchain (without parser) took 11146.29ms. Allocated memory was 140.5MB in the beginning and 276.8MB in the end (delta: 136.3MB). Free memory was 84.6MB in the beginning and 220.9MB in the end (delta: -136.3MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,697 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory was 102.1MB in the beginning and 102.1MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 22:07:43,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.29ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 84.3MB in the beginning and 156.9MB in the end (delta: -72.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.90ms. Allocated memory is still 190.8MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,698 INFO L158 Benchmark]: Boogie Preprocessor took 41.20ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,698 INFO L158 Benchmark]: RCFGBuilder took 407.10ms. Allocated memory is still 190.8MB. Free memory was 152.7MB in the beginning and 133.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,699 INFO L158 Benchmark]: TraceAbstraction took 9952.94ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 132.8MB in the beginning and 228.3MB in the end (delta: -95.5MB). Peak memory consumption was 139.0MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,699 INFO L158 Benchmark]: Witness Printer took 142.25ms. Allocated memory is still 276.8MB. Free memory was 228.3MB in the beginning and 220.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 22:07:43,704 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 140.5MB. Free memory was 102.1MB in the beginning and 102.1MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.29ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 84.3MB in the beginning and 156.9MB in the end (delta: -72.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.90ms. Allocated memory is still 190.8MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.20ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.10ms. Allocated memory is still 190.8MB. Free memory was 152.7MB in the beginning and 133.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9952.94ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 132.8MB in the beginning and 228.3MB in the end (delta: -95.5MB). Peak memory consumption was 139.0MB. Max. memory is 16.1GB. * Witness Printer took 142.25ms. Allocated memory is still 276.8MB. Free memory was 228.3MB in the beginning and 220.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] - GenericResultAtLocation [Line: 458]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] - GenericResultAtLocation [Line: 824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] - GenericResultAtLocation [Line: 923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] * 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: 963]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2135 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2095 mSDsluCounter, 5270 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4026 mSDsCounter, 505 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3457 IncrementalHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 505 mSolverCounterUnsat, 1244 mSDtfsCounter, 3457 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 622 GetRequests, 460 SyntacticMatches, 15 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=965occurred in iteration=12, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 374 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 844 NumberOfCodeBlocks, 844 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1018 ConstructedInterpolants, 0 QuantifiedInterpolants, 2053 SizeOfPredicates, 4 NumberOfNonLiveVariables, 632 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 337/386 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: 399]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - ProcedureContractResult [Line: 263]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((1 == systemActive) && (1 <= waterLevel)) || ((2 <= waterLevel) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((1 == systemActive) && (1 <= waterLevel)) || ((2 <= waterLevel) && (0 != systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 196]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) Ensures: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) && (((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 826]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 172]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) || ((1 <= waterLevel) && (0 == systemActive))) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: (((((((pumpRunning == 0) && (\old(waterLevel) <= ((long long) waterLevel + 1))) || ((2 <= waterLevel) && (\old(waterLevel) <= ((long long) waterLevel + 1)))) && (((((\old(pumpRunning) == 0) && (1 <= \old(waterLevel))) && (0 == systemActive)) || ((1 == systemActive) && (2 <= \old(waterLevel)))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 204]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: (((((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (0 == systemActive))) Ensures: ((((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && ((pumpRunning == 0) || (0 != systemActive))) && (((1 == systemActive) && (1 <= \old(waterLevel))) || ((1 <= \old(waterLevel)) && (0 == systemActive)))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (2 <= waterLevel)))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-19 22:07:43,729 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