./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product50.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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:20:10,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:20:10,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:20:10,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:20:10,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:20:10,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:20:10,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:20:10,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:20:10,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:20:10,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:20:10,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:20:10,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:20:10,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:20:10,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:20:10,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:20:10,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:20:10,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:20:10,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:20:10,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:20:10,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:20:10,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:20:10,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:20:10,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:20:10,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:20:10,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:20:10,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:20:10,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:20:10,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:20:10,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:20:10,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:20:10,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:20:10,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:20:10,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:10,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:20:10,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:20:10,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:20:10,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:20:10,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:20:10,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:20:10,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:20:10,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:20:10,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:20:10,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2024-11-18 14:20:10,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:20:10,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:20:10,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:20:10,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:20:10,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:20:10,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-11-18 14:20:12,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:20:12,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:20:12,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-11-18 14:20:12,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593451690/74a3bf2452a24e88803aef8ccecd8c74/FLAGfc3669022 [2024-11-18 14:20:12,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593451690/74a3bf2452a24e88803aef8ccecd8c74 [2024-11-18 14:20:12,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:20:12,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:20:12,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:12,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:20:12,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:20:12,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75fae3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12, skipping insertion in model container [2024-11-18 14:20:12,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:20:12,690 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_spec3_product50.cil.c[15143,15156] [2024-11-18 14:20:12,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:12,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:20:12,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-18 14:20:12,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] [2024-11-18 14:20:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-11-18 14:20:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2024-11-18 14:20:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] [2024-11-18 14:20:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] [2024-11-18 14:20:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] [2024-11-18 14:20:12,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] [2024-11-18 14:20:12,808 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_spec3_product50.cil.c[15143,15156] [2024-11-18 14:20:12,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:20:12,836 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:20:12,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12 WrapperNode [2024-11-18 14:20:12,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:20:12,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:12,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:20:12,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:20:12,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,905 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 213 [2024-11-18 14:20:12,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:20:12,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:20:12,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:20:12,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:20:12,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,952 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]. [2024-11-18 14:20:12,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:20:12,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:20:12,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:20:12,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:20:12,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (1/1) ... [2024-11-18 14:20:12,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:20:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:13,016 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) [2024-11-18 14:20:13,019 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 [2024-11-18 14:20:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:20:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:20:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:20:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:20:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:20:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:20:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:20:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-18 14:20:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-18 14:20:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:20:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:20:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:20:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:20:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:20:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:20:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:20:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:20:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:20:13,145 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:20:13,147 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:20:13,429 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-18 14:20:13,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:20:13,442 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:20:13,442 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:20:13,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:13 BoogieIcfgContainer [2024-11-18 14:20:13,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:20:13,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:20:13,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:20:13,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:20:13,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:20:12" (1/3) ... [2024-11-18 14:20:13,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffb523c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:13, skipping insertion in model container [2024-11-18 14:20:13,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:20:12" (2/3) ... [2024-11-18 14:20:13,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffb523c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:20:13, skipping insertion in model container [2024-11-18 14:20:13,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:13" (3/3) ... [2024-11-18 14:20:13,451 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2024-11-18 14:20:13,464 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:20:13,464 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:20:13,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:20:13,524 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;@2013ed30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:20:13,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:20:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:20:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:20:13,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:13,545 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] [2024-11-18 14:20:13,546 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:13,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash 497933795, now seen corresponding path program 1 times [2024-11-18 14:20:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:13,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050998042] [2024-11-18 14:20:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:13,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:13,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:13,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050998042] [2024-11-18 14:20:13,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050998042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:13,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:13,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:20:13,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849026368] [2024-11-18 14:20:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:13,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:20:13,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:13,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:20:13,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:20:13,829 INFO L87 Difference]: Start difference. First operand has 89 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:13,865 INFO L93 Difference]: Finished difference Result 170 states and 231 transitions. [2024-11-18 14:20:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:20:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-18 14:20:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:13,877 INFO L225 Difference]: With dead ends: 170 [2024-11-18 14:20:13,878 INFO L226 Difference]: Without dead ends: 80 [2024-11-18 14:20:13,882 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 [2024-11-18 14:20:13,887 INFO L432 NwaCegarLoop]: 112 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, 112 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 [2024-11-18 14:20:13,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-18 14:20:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-18 14:20:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 69 states have internal predecessors, (82), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 14:20:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2024-11-18 14:20:13,942 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 25 [2024-11-18 14:20:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:13,944 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2024-11-18 14:20:13,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2024-11-18 14:20:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 14:20:13,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:13,946 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] [2024-11-18 14:20:13,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:20:13,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:13,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash -470356708, now seen corresponding path program 1 times [2024-11-18 14:20:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994204442] [2024-11-18 14:20:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:14,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:14,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994204442] [2024-11-18 14:20:14,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994204442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:14,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:14,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:20:14,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392961840] [2024-11-18 14:20:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:14,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:20:14,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:14,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:20:14,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:20:14,137 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:14,155 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions. [2024-11-18 14:20:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:20:14,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-18 14:20:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:14,158 INFO L225 Difference]: With dead ends: 125 [2024-11-18 14:20:14,158 INFO L226 Difference]: Without dead ends: 71 [2024-11-18 14:20:14,159 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 [2024-11-18 14:20:14,160 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 13 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 163 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 [2024-11-18 14:20:14,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:14,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-18 14:20:14,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-18 14:20:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 63 states have internal predecessors, (75), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 14:20:14,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2024-11-18 14:20:14,171 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 26 [2024-11-18 14:20:14,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:14,171 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2024-11-18 14:20:14,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:14,172 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2024-11-18 14:20:14,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-18 14:20:14,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:14,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:14,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:20:14,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:14,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1793997224, now seen corresponding path program 1 times [2024-11-18 14:20:14,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:14,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158604697] [2024-11-18 14:20:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:14,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:14,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158604697] [2024-11-18 14:20:14,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158604697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:14,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:14,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:14,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453000217] [2024-11-18 14:20:14,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:14,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:14,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:14,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:14,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:14,362 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:14,428 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2024-11-18 14:20:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:14,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-18 14:20:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:14,430 INFO L225 Difference]: With dead ends: 135 [2024-11-18 14:20:14,431 INFO L226 Difference]: Without dead ends: 71 [2024-11-18 14:20:14,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:14,433 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 85 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:14,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 259 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-18 14:20:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-18 14:20:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 63 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 14:20:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2024-11-18 14:20:14,444 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 31 [2024-11-18 14:20:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:14,444 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2024-11-18 14:20:14,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:20:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2024-11-18 14:20:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:20:14,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:14,446 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] [2024-11-18 14:20:14,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:20:14,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:14,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:14,447 INFO L85 PathProgramCache]: Analyzing trace with hash -668349169, now seen corresponding path program 1 times [2024-11-18 14:20:14,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:14,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898790067] [2024-11-18 14:20:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:14,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:14,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:14,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898790067] [2024-11-18 14:20:14,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898790067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:14,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:14,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384517840] [2024-11-18 14:20:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:14,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:14,592 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:20:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:14,834 INFO L93 Difference]: Finished difference Result 213 states and 271 transitions. [2024-11-18 14:20:14,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:20:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2024-11-18 14:20:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:14,836 INFO L225 Difference]: With dead ends: 213 [2024-11-18 14:20:14,836 INFO L226 Difference]: Without dead ends: 149 [2024-11-18 14:20:14,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:20:14,842 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 173 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:14,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 293 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:20:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-18 14:20:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2024-11-18 14:20:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-18 14:20:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2024-11-18 14:20:14,875 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 41 [2024-11-18 14:20:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:14,877 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2024-11-18 14:20:14,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:20:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2024-11-18 14:20:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:20:14,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:14,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:14,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:20:14,879 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash 103943489, now seen corresponding path program 1 times [2024-11-18 14:20:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:14,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477522427] [2024-11-18 14:20:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:14,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477522427] [2024-11-18 14:20:14,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477522427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:14,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:20:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999268029] [2024-11-18 14:20:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:14,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:20:14,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:14,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:20:14,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:20:14,995 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:15,030 INFO L93 Difference]: Finished difference Result 281 states and 354 transitions. [2024-11-18 14:20:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:20:15,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-18 14:20:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:15,033 INFO L225 Difference]: With dead ends: 281 [2024-11-18 14:20:15,033 INFO L226 Difference]: Without dead ends: 145 [2024-11-18 14:20:15,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:20:15,035 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:15,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-18 14:20:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-18 14:20:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 121 states have internal predecessors, (145), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-18 14:20:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 178 transitions. [2024-11-18 14:20:15,053 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 178 transitions. Word has length 45 [2024-11-18 14:20:15,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:15,053 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 178 transitions. [2024-11-18 14:20:15,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 178 transitions. [2024-11-18 14:20:15,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:20:15,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:15,056 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:15,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:20:15,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:15,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash 921591939, now seen corresponding path program 1 times [2024-11-18 14:20:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:15,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617766444] [2024-11-18 14:20:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:15,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:15,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617766444] [2024-11-18 14:20:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617766444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:15,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:15,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160126792] [2024-11-18 14:20:15,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:15,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:15,162 INFO L87 Difference]: Start difference. First operand 145 states and 178 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:15,188 INFO L93 Difference]: Finished difference Result 286 states and 356 transitions. [2024-11-18 14:20:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:15,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-18 14:20:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:15,192 INFO L225 Difference]: With dead ends: 286 [2024-11-18 14:20:15,192 INFO L226 Difference]: Without dead ends: 148 [2024-11-18 14:20:15,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:15,197 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:15,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-18 14:20:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-18 14:20:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 117 states have (on average 1.264957264957265) internal successors, (148), 124 states have internal predecessors, (148), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-18 14:20:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 181 transitions. [2024-11-18 14:20:15,225 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 181 transitions. Word has length 45 [2024-11-18 14:20:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:15,225 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 181 transitions. [2024-11-18 14:20:15,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 181 transitions. [2024-11-18 14:20:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:20:15,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:15,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:15,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:20:15,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:15,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 322798207, now seen corresponding path program 1 times [2024-11-18 14:20:15,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:15,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309491623] [2024-11-18 14:20:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:15,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:15,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:15,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309491623] [2024-11-18 14:20:15,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309491623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:15,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:15,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:20:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564537348] [2024-11-18 14:20:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:15,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:20:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:15,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:20:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:20:15,325 INFO L87 Difference]: Start difference. First operand 148 states and 181 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:15,423 INFO L93 Difference]: Finished difference Result 458 states and 580 transitions. [2024-11-18 14:20:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:20:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-18 14:20:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:15,426 INFO L225 Difference]: With dead ends: 458 [2024-11-18 14:20:15,426 INFO L226 Difference]: Without dead ends: 317 [2024-11-18 14:20:15,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:20:15,430 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 121 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:15,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 296 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:20:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-18 14:20:15,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 199. [2024-11-18 14:20:15,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.25) internal successors, (195), 165 states have internal predecessors, (195), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-18 14:20:15,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2024-11-18 14:20:15,458 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 45 [2024-11-18 14:20:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:15,458 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2024-11-18 14:20:15,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:20:15,459 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2024-11-18 14:20:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-18 14:20:15,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:15,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:15,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:20:15,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:15,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:15,461 INFO L85 PathProgramCache]: Analyzing trace with hash -916701465, now seen corresponding path program 1 times [2024-11-18 14:20:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:15,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747924762] [2024-11-18 14:20:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:15,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:15,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:15,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747924762] [2024-11-18 14:20:15,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747924762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:15,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:15,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:15,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928430569] [2024-11-18 14:20:15,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:15,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:15,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:15,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:15,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:15,577 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:20:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:15,635 INFO L93 Difference]: Finished difference Result 389 states and 473 transitions. [2024-11-18 14:20:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2024-11-18 14:20:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:15,640 INFO L225 Difference]: With dead ends: 389 [2024-11-18 14:20:15,640 INFO L226 Difference]: Without dead ends: 197 [2024-11-18 14:20:15,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:15,642 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 34 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:15,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 327 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-18 14:20:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-18 14:20:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 163 states have internal predecessors, (191), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-18 14:20:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2024-11-18 14:20:15,672 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 47 [2024-11-18 14:20:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:15,673 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2024-11-18 14:20:15,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:20:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2024-11-18 14:20:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-18 14:20:15,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:15,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:15,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:20:15,679 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:15,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:15,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1637594841, now seen corresponding path program 1 times [2024-11-18 14:20:15,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:15,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525945432] [2024-11-18 14:20:15,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:15,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:15,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525945432] [2024-11-18 14:20:15,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525945432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:15,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:15,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580166319] [2024-11-18 14:20:15,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:15,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:15,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:15,757 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:20:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:15,816 INFO L93 Difference]: Finished difference Result 340 states and 413 transitions. [2024-11-18 14:20:15,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:15,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2024-11-18 14:20:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:15,819 INFO L225 Difference]: With dead ends: 340 [2024-11-18 14:20:15,819 INFO L226 Difference]: Without dead ends: 197 [2024-11-18 14:20:15,820 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 [2024-11-18 14:20:15,821 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 55 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:15,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 446 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:15,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-18 14:20:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-18 14:20:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2207792207792207) internal successors, (188), 163 states have internal predecessors, (188), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2024-11-18 14:20:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 232 transitions. [2024-11-18 14:20:15,846 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 232 transitions. Word has length 49 [2024-11-18 14:20:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:15,846 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 232 transitions. [2024-11-18 14:20:15,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:20:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 232 transitions. [2024-11-18 14:20:15,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:20:15,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:15,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:15,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:20:15,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:15,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash -117521215, now seen corresponding path program 1 times [2024-11-18 14:20:15,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:15,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565936820] [2024-11-18 14:20:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:15,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565936820] [2024-11-18 14:20:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565936820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434924119] [2024-11-18 14:20:15,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:15,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:15,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:15,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:15,957 INFO L87 Difference]: Start difference. First operand 197 states and 232 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:16,034 INFO L93 Difference]: Finished difference Result 469 states and 574 transitions. [2024-11-18 14:20:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:16,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-18 14:20:16,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:16,037 INFO L225 Difference]: With dead ends: 469 [2024-11-18 14:20:16,037 INFO L226 Difference]: Without dead ends: 326 [2024-11-18 14:20:16,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:16,039 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 69 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:16,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 388 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:16,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-18 14:20:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 302. [2024-11-18 14:20:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 235 states have (on average 1.2085106382978723) internal successors, (284), 248 states have internal predecessors, (284), 31 states have call successors, (31), 29 states have call predecessors, (31), 35 states have return successors, (41), 32 states have call predecessors, (41), 31 states have call successors, (41) [2024-11-18 14:20:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 356 transitions. [2024-11-18 14:20:16,069 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 356 transitions. Word has length 51 [2024-11-18 14:20:16,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:16,070 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 356 transitions. [2024-11-18 14:20:16,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,070 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 356 transitions. [2024-11-18 14:20:16,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:20:16,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:16,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:16,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:20:16,072 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:16,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash -32680003, now seen corresponding path program 1 times [2024-11-18 14:20:16,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:16,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278953597] [2024-11-18 14:20:16,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:16,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:16,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:16,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278953597] [2024-11-18 14:20:16,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278953597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:16,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:16,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:20:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797017648] [2024-11-18 14:20:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:16,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:20:16,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:20:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:16,189 INFO L87 Difference]: Start difference. First operand 302 states and 356 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:16,244 INFO L93 Difference]: Finished difference Result 550 states and 655 transitions. [2024-11-18 14:20:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:20:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-18 14:20:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:16,246 INFO L225 Difference]: With dead ends: 550 [2024-11-18 14:20:16,246 INFO L226 Difference]: Without dead ends: 302 [2024-11-18 14:20:16,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:20:16,249 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:16,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-18 14:20:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-18 14:20:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 235 states have (on average 1.2) internal successors, (282), 248 states have internal predecessors, (282), 31 states have call successors, (31), 29 states have call predecessors, (31), 35 states have return successors, (41), 32 states have call predecessors, (41), 31 states have call successors, (41) [2024-11-18 14:20:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 354 transitions. [2024-11-18 14:20:16,276 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 354 transitions. Word has length 51 [2024-11-18 14:20:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:16,277 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 354 transitions. [2024-11-18 14:20:16,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 354 transitions. [2024-11-18 14:20:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:20:16,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:16,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:20:16,280 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:16,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash -251534721, now seen corresponding path program 1 times [2024-11-18 14:20:16,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:16,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406848512] [2024-11-18 14:20:16,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:16,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:20:16,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:16,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406848512] [2024-11-18 14:20:16,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406848512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:16,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:16,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:20:16,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008221188] [2024-11-18 14:20:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:16,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:20:16,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:20:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:20:16,333 INFO L87 Difference]: Start difference. First operand 302 states and 354 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:16,367 INFO L93 Difference]: Finished difference Result 530 states and 627 transitions. [2024-11-18 14:20:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:20:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-18 14:20:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:16,369 INFO L225 Difference]: With dead ends: 530 [2024-11-18 14:20:16,369 INFO L226 Difference]: Without dead ends: 282 [2024-11-18 14:20:16,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:20:16,371 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:16,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-18 14:20:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-11-18 14:20:16,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 220 states have (on average 1.190909090909091) internal successors, (262), 232 states have internal predecessors, (262), 29 states have call successors, (29), 28 states have call predecessors, (29), 32 states have return successors, (37), 29 states have call predecessors, (37), 29 states have call successors, (37) [2024-11-18 14:20:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 328 transitions. [2024-11-18 14:20:16,397 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 328 transitions. Word has length 51 [2024-11-18 14:20:16,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:16,397 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 328 transitions. [2024-11-18 14:20:16,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:20:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 328 transitions. [2024-11-18 14:20:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:20:16,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:16,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:16,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:20:16,399 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash -614822540, now seen corresponding path program 1 times [2024-11-18 14:20:16,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813111862] [2024-11-18 14:20:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:20:16,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813111862] [2024-11-18 14:20:16,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813111862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:20:16,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:20:16,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:20:16,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905264150] [2024-11-18 14:20:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:20:16,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:20:16,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:16,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:20:16,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:16,481 INFO L87 Difference]: Start difference. First operand 282 states and 328 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:20:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:16,519 INFO L93 Difference]: Finished difference Result 516 states and 605 transitions. [2024-11-18 14:20:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:20:16,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-11-18 14:20:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:16,523 INFO L225 Difference]: With dead ends: 516 [2024-11-18 14:20:16,523 INFO L226 Difference]: Without dead ends: 288 [2024-11-18 14:20:16,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:20:16,524 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:16,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:20:16,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-18 14:20:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-18 14:20:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 226 states have (on average 1.1858407079646018) internal successors, (268), 238 states have internal predecessors, (268), 29 states have call successors, (29), 28 states have call predecessors, (29), 32 states have return successors, (37), 29 states have call predecessors, (37), 29 states have call successors, (37) [2024-11-18 14:20:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 334 transitions. [2024-11-18 14:20:16,547 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 334 transitions. Word has length 81 [2024-11-18 14:20:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:16,548 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 334 transitions. [2024-11-18 14:20:16,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:20:16,548 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 334 transitions. [2024-11-18 14:20:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:20:16,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:20:16,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:16,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:20:16,550 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:20:16,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:20:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1686000050, now seen corresponding path program 1 times [2024-11-18 14:20:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:20:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555418071] [2024-11-18 14:20:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:20:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:20:16,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:20:16,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555418071] [2024-11-18 14:20:16,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555418071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:20:16,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487937252] [2024-11-18 14:20:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:20:16,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:20:16,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:20:16,750 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) [2024-11-18 14:20:16,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:20:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:20:16,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:20:16,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:20:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:20:17,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:20:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:20:17,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487937252] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:20:17,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:20:17,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 15 [2024-11-18 14:20:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159748119] [2024-11-18 14:20:17,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:20:17,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 14:20:17,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:20:17,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 14:20:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:20:17,369 INFO L87 Difference]: Start difference. First operand 288 states and 334 transitions. Second operand has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-18 14:20:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:20:17,793 INFO L93 Difference]: Finished difference Result 535 states and 648 transitions. [2024-11-18 14:20:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:20:17,794 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 81 [2024-11-18 14:20:17,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:20:17,795 INFO L225 Difference]: With dead ends: 535 [2024-11-18 14:20:17,795 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:20:17,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=419, Unknown=0, NotChecked=0, Total=650 [2024-11-18 14:20:17,797 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 239 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:20:17,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 394 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:20:17,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:20:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:20:17,798 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) [2024-11-18 14:20:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:20:17,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-11-18 14:20:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:20:17,798 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:20:17,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-18 14:20:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:20:17,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:20:17,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:20:17,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:20:18,002 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,SelfDestructingSolverStorable13 [2024-11-18 14:20:18,005 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:20:18,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:20:20,405 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:20:20,443 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4)))))) [2024-11-18 14:20:20,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:20:20,469 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or .cse0 (= ~pumpRunning~0 1)) (let ((.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse1) (and (<= ~waterLevel~0 1) (= |old(~pumpRunning~0)| 1) .cse1))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or .cse0 (= ~pumpRunning~0 1)) (let ((.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse1) (and (<= ~waterLevel~0 1) (= |old(~pumpRunning~0)| 1) .cse1)))))) [2024-11-18 14:20:20,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:20:20,479 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= |old(~waterLevel~0)| 1) .cse0) (and (<= |old(~waterLevel~0)| 2) .cse0 (= ~pumpRunning~0 1))))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse0) (and (<= ~waterLevel~0 2) .cse0 (= ~pumpRunning~0 1)))) [2024-11-18 14:20:20,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:20:20 BoogieIcfgContainer [2024-11-18 14:20:20,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:20:20,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:20:20,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:20:20,490 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:20:20,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:20:13" (3/4) ... [2024-11-18 14:20:20,493 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:20:20,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:20:20,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:20:20,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:20:20,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:20:20,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-18 14:20:20,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:20:20,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:20:20,506 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-18 14:20:20,508 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:20:20,508 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:20:20,509 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:20,509 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:20:20,615 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:20:20,615 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:20:20,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:20:20,616 INFO L158 Benchmark]: Toolchain (without parser) took 8309.40ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 99.5MB in the beginning and 80.8MB in the end (delta: 18.8MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,616 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:20,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.39ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 121.0MB in the end (delta: -21.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.48ms. Allocated memory is still 161.5MB. Free memory was 121.0MB in the beginning and 118.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:20:20,617 INFO L158 Benchmark]: Boogie Preprocessor took 72.27ms. Allocated memory is still 161.5MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,617 INFO L158 Benchmark]: RCFGBuilder took 463.48ms. Allocated memory is still 161.5MB. Free memory was 116.7MB in the beginning and 97.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,618 INFO L158 Benchmark]: TraceAbstraction took 7044.76ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 97.2MB in the beginning and 88.1MB in the end (delta: 9.1MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,618 INFO L158 Benchmark]: Witness Printer took 125.38ms. Allocated memory is still 257.9MB. Free memory was 88.1MB in the beginning and 80.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:20:20,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.39ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 121.0MB in the end (delta: -21.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.48ms. Allocated memory is still 161.5MB. Free memory was 121.0MB in the beginning and 118.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.27ms. Allocated memory is still 161.5MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 463.48ms. Allocated memory is still 161.5MB. Free memory was 116.7MB in the beginning and 97.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7044.76ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 97.2MB in the beginning and 88.1MB in the end (delta: 9.1MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. * Witness Printer took 125.38ms. Allocated memory is still 257.9MB. Free memory was 88.1MB in the beginning and 80.8MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] - GenericResultAtLocation [Line: 664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] - GenericResultAtLocation [Line: 708]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] - GenericResultAtLocation [Line: 776]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 704]: 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, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 797 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 789 mSDsluCounter, 4551 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3174 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 639 IncrementalHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 1377 mSDtfsCounter, 639 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 193 SyntacticMatches, 7 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=10, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 148 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 750 NumberOfCodeBlocks, 750 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 815 ConstructedInterpolants, 0 QuantifiedInterpolants, 1553 SizeOfPredicates, 2 NumberOfNonLiveVariables, 285 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 56/84 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: 720]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 719]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 806]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 486]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 782]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((1 < \old(waterLevel)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel))) || (\old(pumpRunning) != 0)) || (0 == systemActive)) && (((((waterLevel <= 1) && (waterLevel <= \old(waterLevel))) && (pumpRunning == 1)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (waterLevel <= \old(waterLevel))))) && ((((((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel)) || (\old(pumpRunning) != 0)) || (0 == systemActive)) || ((\old(waterLevel) == waterLevel) && (pumpRunning == 1)))) && ((((\old(pumpRunning) == 1) && (\old(waterLevel) <= 2)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)) && (0 != systemActive)))) && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 565]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 498]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 814]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: ((((((\old(pumpRunning) == 0) || (pumpRunning == 1)) && (((pumpRunning == 0) && (waterLevel <= 1)) || (pumpRunning == 1))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 1) && (\old(pumpRunning) == 1)) && (0 != systemActive)))) && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 474]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((waterLevel <= ((long long) \old(waterLevel) + 1)) && (waterLevel <= 2)) && (((waterLevel != 1) || (pumpRunning != 0)) || (\old(waterLevel) != 1))) && ((((pumpRunning == 0) && (\old(waterLevel) <= 1)) && (0 != systemActive)) || (((\old(waterLevel) <= 2) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:20:20,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE