./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU --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 1ef39c14b0f41147d1df64069011556a64ce74ff520b071f62407c2225292c50 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:38,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:38,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:05:38,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:38,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:38,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:38,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:38,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:38,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:38,325 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:38,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:38,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:38,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:38,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:38,330 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:38,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:38,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:38,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:38,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:38,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:38,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:38,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:38,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:38,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:38,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:38,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:38,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:38,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:38,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:38,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:38,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:38,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:38,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:38,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:38,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:38,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:38,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:38,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:38,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:38,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:38,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:38,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:38,355 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef39c14b0f41147d1df64069011556a64ce74ff520b071f62407c2225292c50 [2024-10-31 22:05:38,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:38,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:38,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:38,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:38,809 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:38,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c Unable to find full path for "g++" [2024-10-31 22:05:41,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:41,280 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:41,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2024-10-31 22:05:41,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/data/25c6bcfb3/aa0c7d2df00743b6b878fa6a3634023d/FLAGa9fbcf253 [2024-10-31 22:05:41,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/data/25c6bcfb3/aa0c7d2df00743b6b878fa6a3634023d [2024-10-31 22:05:41,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:41,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:41,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:41,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:41,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:41,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:41" (1/1) ... [2024-10-31 22:05:41,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326645e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:41, skipping insertion in model container [2024-10-31 22:05:41,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:41" (1/1) ... [2024-10-31 22:05:41,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:42,052 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c[18485,18498] [2024-10-31 22:05:42,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:42,078 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:42,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-10-31 22:05:42,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [277] [2024-10-31 22:05:42,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [381] [2024-10-31 22:05:42,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [448] [2024-10-31 22:05:42,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [483] [2024-10-31 22:05:42,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [849] [2024-10-31 22:05:42,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [953] [2024-10-31 22:05:42,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [962] [2024-10-31 22:05:42,194 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c[18485,18498] [2024-10-31 22:05:42,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:42,220 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:42,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42 WrapperNode [2024-10-31 22:05:42,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:42,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:42,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:42,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:42,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,280 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 212 [2024-10-31 22:05:42,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:42,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:42,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:42,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:42,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,368 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:05:42,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:42,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:42,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:42,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:42,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:42,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:42,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:42,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:42,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 22:05:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 22:05:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:05:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:05:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:05:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:05:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 22:05:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 22:05:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 22:05:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 22:05:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-31 22:05:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-31 22:05:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-31 22:05:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-31 22:05:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 22:05:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 22:05:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:42,599 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:42,601 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:42,900 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-31 22:05:42,900 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:42,919 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:42,919 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:05:42,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:42 BoogieIcfgContainer [2024-10-31 22:05:42,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:42,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:42,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:42,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:42,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:41" (1/3) ... [2024-10-31 22:05:42,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f68be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:42, skipping insertion in model container [2024-10-31 22:05:42,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42" (2/3) ... [2024-10-31 22:05:42,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f68be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:42, skipping insertion in model container [2024-10-31 22:05:42,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:42" (3/3) ... [2024-10-31 22:05:42,931 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2024-10-31 22:05:42,948 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:42,948 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:05:43,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:43,019 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;@ff95795, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:43,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:05:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:05:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 22:05:43,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:43,041 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:43,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:43,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash 764297473, now seen corresponding path program 1 times [2024-10-31 22:05:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821754938] [2024-10-31 22:05:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:43,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:05:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 22:05:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:43,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:43,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821754938] [2024-10-31 22:05:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821754938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658701695] [2024-10-31 22:05:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:43,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:05:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:05:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:05:43,405 INFO L87 Difference]: Start difference. First operand has 99 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:05:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:43,441 INFO L93 Difference]: Finished difference Result 189 states and 256 transitions. [2024-10-31 22:05:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:05:43,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-10-31 22:05:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:43,452 INFO L225 Difference]: With dead ends: 189 [2024-10-31 22:05:43,452 INFO L226 Difference]: Without dead ends: 90 [2024-10-31 22:05:43,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:05:43,459 INFO L432 NwaCegarLoop]: 125 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, 125 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 [2024-10-31 22:05:43,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-31 22:05:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-31 22:05:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 76 states have internal predecessors, (89), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:05:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2024-10-31 22:05:43,517 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 32 [2024-10-31 22:05:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:43,518 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2024-10-31 22:05:43,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:05:43,518 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2024-10-31 22:05:43,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:05:43,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:43,521 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:43,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:43,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:43,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash -297054839, now seen corresponding path program 1 times [2024-10-31 22:05:43,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:43,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817553246] [2024-10-31 22:05:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:43,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:05:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:05:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:43,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817553246] [2024-10-31 22:05:43,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817553246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:43,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:43,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:05:43,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150671661] [2024-10-31 22:05:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:43,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:43,890 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:44,176 INFO L93 Difference]: Finished difference Result 309 states and 412 transitions. [2024-10-31 22:05:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:44,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-10-31 22:05:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:44,183 INFO L225 Difference]: With dead ends: 309 [2024-10-31 22:05:44,183 INFO L226 Difference]: Without dead ends: 227 [2024-10-31 22:05:44,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:44,188 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 201 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:44,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 531 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-31 22:05:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 221. [2024-10-31 22:05:44,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 164 states have (on average 1.329268292682927) internal successors, (218), 182 states have internal predecessors, (218), 37 states have call successors, (37), 22 states have call predecessors, (37), 19 states have return successors, (37), 26 states have call predecessors, (37), 34 states have call successors, (37) [2024-10-31 22:05:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 292 transitions. [2024-10-31 22:05:44,256 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 292 transitions. Word has length 37 [2024-10-31 22:05:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:44,257 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 292 transitions. [2024-10-31 22:05:44,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 292 transitions. [2024-10-31 22:05:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:05:44,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:44,260 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:44,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:44,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:44,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1133604870, now seen corresponding path program 1 times [2024-10-31 22:05:44,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:44,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408942481] [2024-10-31 22:05:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:05:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:05:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:05:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:05:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:44,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:44,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408942481] [2024-10-31 22:05:44,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408942481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:44,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:44,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:05:44,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457250116] [2024-10-31 22:05:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:44,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:44,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:44,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:44,405 INFO L87 Difference]: Start difference. First operand 221 states and 292 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:05:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:44,561 INFO L93 Difference]: Finished difference Result 370 states and 484 transitions. [2024-10-31 22:05:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:44,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-31 22:05:44,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:44,565 INFO L225 Difference]: With dead ends: 370 [2024-10-31 22:05:44,568 INFO L226 Difference]: Without dead ends: 222 [2024-10-31 22:05:44,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:44,575 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 69 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:44,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 181 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:05:44,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-31 22:05:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 194. [2024-10-31 22:05:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 146 states have (on average 1.3493150684931507) internal successors, (197), 164 states have internal predecessors, (197), 28 states have call successors, (28), 19 states have call predecessors, (28), 19 states have return successors, (29), 20 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-31 22:05:44,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 254 transitions. [2024-10-31 22:05:44,642 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 254 transitions. Word has length 43 [2024-10-31 22:05:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:44,644 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 254 transitions. [2024-10-31 22:05:44,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:05:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 254 transitions. [2024-10-31 22:05:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:05:44,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:44,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:44,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:05:44,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:44,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:44,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1125311, now seen corresponding path program 1 times [2024-10-31 22:05:44,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:44,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924240612] [2024-10-31 22:05:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:05:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:05:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:05:44,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:44,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924240612] [2024-10-31 22:05:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924240612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:44,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:44,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:05:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494680178] [2024-10-31 22:05:44,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:44,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:44,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:44,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:44,852 INFO L87 Difference]: Start difference. First operand 194 states and 254 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:45,037 INFO L93 Difference]: Finished difference Result 463 states and 620 transitions. [2024-10-31 22:05:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:45,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-10-31 22:05:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:45,042 INFO L225 Difference]: With dead ends: 463 [2024-10-31 22:05:45,042 INFO L226 Difference]: Without dead ends: 277 [2024-10-31 22:05:45,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:45,048 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 71 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:45,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 446 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:05:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-10-31 22:05:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 275. [2024-10-31 22:05:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 207 states have (on average 1.289855072463768) internal successors, (267), 224 states have internal predecessors, (267), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-10-31 22:05:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 351 transitions. [2024-10-31 22:05:45,095 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 351 transitions. Word has length 41 [2024-10-31 22:05:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:45,096 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 351 transitions. [2024-10-31 22:05:45,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 351 transitions. [2024-10-31 22:05:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-31 22:05:45,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:45,099 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:45,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:05:45,099 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:45,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:45,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1784621037, now seen corresponding path program 1 times [2024-10-31 22:05:45,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:45,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565593803] [2024-10-31 22:05:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:05:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:05:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:05:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565593803] [2024-10-31 22:05:45,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565593803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:45,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:45,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:05:45,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504723573] [2024-10-31 22:05:45,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:45,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:45,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:45,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:45,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:45,271 INFO L87 Difference]: Start difference. First operand 275 states and 351 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:45,495 INFO L93 Difference]: Finished difference Result 596 states and 770 transitions. [2024-10-31 22:05:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:45,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-10-31 22:05:45,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:45,498 INFO L225 Difference]: With dead ends: 596 [2024-10-31 22:05:45,499 INFO L226 Difference]: Without dead ends: 329 [2024-10-31 22:05:45,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:45,502 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 56 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:45,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 386 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-31 22:05:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 327. [2024-10-31 22:05:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 249 states have (on average 1.2730923694779117) internal successors, (317), 266 states have internal predecessors, (317), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-10-31 22:05:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 415 transitions. [2024-10-31 22:05:45,544 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 415 transitions. Word has length 51 [2024-10-31 22:05:45,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:45,544 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 415 transitions. [2024-10-31 22:05:45,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:45,545 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 415 transitions. [2024-10-31 22:05:45,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-31 22:05:45,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:45,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:45,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:45,549 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:45,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash 95677295, now seen corresponding path program 1 times [2024-10-31 22:05:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430765005] [2024-10-31 22:05:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:45,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:05:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:05:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:05:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430765005] [2024-10-31 22:05:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430765005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:05:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157993783] [2024-10-31 22:05:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:45,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:05:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:05:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:05:45,730 INFO L87 Difference]: Start difference. First operand 327 states and 415 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:45,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:45,944 INFO L93 Difference]: Finished difference Result 652 states and 847 transitions. [2024-10-31 22:05:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:45,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 2 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 51 [2024-10-31 22:05:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:45,947 INFO L225 Difference]: With dead ends: 652 [2024-10-31 22:05:45,947 INFO L226 Difference]: Without dead ends: 333 [2024-10-31 22:05:45,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:45,950 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 55 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:45,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 464 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:45,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-31 22:05:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 331. [2024-10-31 22:05:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 253 states have (on average 1.2687747035573123) internal successors, (321), 270 states have internal predecessors, (321), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-10-31 22:05:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 419 transitions. [2024-10-31 22:05:46,003 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 419 transitions. Word has length 51 [2024-10-31 22:05:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:46,007 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 419 transitions. [2024-10-31 22:05:46,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 419 transitions. [2024-10-31 22:05:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-31 22:05:46,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:46,009 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:46,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:05:46,011 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:46,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash 518379121, now seen corresponding path program 1 times [2024-10-31 22:05:46,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:46,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145912536] [2024-10-31 22:05:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:05:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:05:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:05:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:46,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:46,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145912536] [2024-10-31 22:05:46,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145912536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:46,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:46,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332585935] [2024-10-31 22:05:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:46,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:05:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:05:46,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:05:46,178 INFO L87 Difference]: Start difference. First operand 331 states and 419 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:46,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:46,538 INFO L93 Difference]: Finished difference Result 996 states and 1308 transitions. [2024-10-31 22:05:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-10-31 22:05:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:46,543 INFO L225 Difference]: With dead ends: 996 [2024-10-31 22:05:46,543 INFO L226 Difference]: Without dead ends: 673 [2024-10-31 22:05:46,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:05:46,546 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 224 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:46,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 319 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:05:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-10-31 22:05:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 666. [2024-10-31 22:05:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 505 states have (on average 1.2356435643564356) internal successors, (624), 534 states have internal predecessors, (624), 88 states have call successors, (88), 71 states have call predecessors, (88), 72 states have return successors, (133), 86 states have call predecessors, (133), 88 states have call successors, (133) [2024-10-31 22:05:46,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 845 transitions. [2024-10-31 22:05:46,629 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 845 transitions. Word has length 51 [2024-10-31 22:05:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:46,632 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 845 transitions. [2024-10-31 22:05:46,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:46,633 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 845 transitions. [2024-10-31 22:05:46,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-31 22:05:46,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:46,634 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:46,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:05:46,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:46,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1241994025, now seen corresponding path program 1 times [2024-10-31 22:05:46,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:46,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103665670] [2024-10-31 22:05:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:46,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:05:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:05:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-31 22:05:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:05:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:05:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103665670] [2024-10-31 22:05:46,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103665670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:46,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:46,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:05:46,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529780372] [2024-10-31 22:05:46,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:46,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:46,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:46,914 INFO L87 Difference]: Start difference. First operand 666 states and 845 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:05:47,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:47,749 INFO L93 Difference]: Finished difference Result 1981 states and 2612 transitions. [2024-10-31 22:05:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-31 22:05:47,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-10-31 22:05:47,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:47,759 INFO L225 Difference]: With dead ends: 1981 [2024-10-31 22:05:47,759 INFO L226 Difference]: Without dead ends: 1460 [2024-10-31 22:05:47,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:05:47,764 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 411 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:47,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 663 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:05:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-10-31 22:05:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1268. [2024-10-31 22:05:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 963 states have (on average 1.2315680166147456) internal successors, (1186), 1025 states have internal predecessors, (1186), 165 states have call successors, (165), 123 states have call predecessors, (165), 139 states have return successors, (253), 162 states have call predecessors, (253), 165 states have call successors, (253) [2024-10-31 22:05:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1604 transitions. [2024-10-31 22:05:47,907 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1604 transitions. Word has length 55 [2024-10-31 22:05:47,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:47,908 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1604 transitions. [2024-10-31 22:05:47,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:05:47,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1604 transitions. [2024-10-31 22:05:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 22:05:47,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:47,912 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:47,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:05:47,912 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:47,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:47,913 INFO L85 PathProgramCache]: Analyzing trace with hash 311034572, now seen corresponding path program 1 times [2024-10-31 22:05:47,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:47,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299646774] [2024-10-31 22:05:47,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:47,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:05:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:05:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:05:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:05:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:05:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:05:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-31 22:05:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:48,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:48,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299646774] [2024-10-31 22:05:48,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299646774] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:48,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276497571] [2024-10-31 22:05:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:48,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:48,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:48,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:48,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:05:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:48,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:05:48,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:48,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276497571] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:48,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:48,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 16 [2024-10-31 22:05:48,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752659229] [2024-10-31 22:05:48,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:48,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:05:48,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:05:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:05:48,915 INFO L87 Difference]: Start difference. First operand 1268 states and 1604 transitions. Second operand has 16 states, 16 states have (on average 7.5) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-10-31 22:05:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:50,681 INFO L93 Difference]: Finished difference Result 2830 states and 3713 transitions. [2024-10-31 22:05:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-31 22:05:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 96 [2024-10-31 22:05:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:50,693 INFO L225 Difference]: With dead ends: 2830 [2024-10-31 22:05:50,693 INFO L226 Difference]: Without dead ends: 1701 [2024-10-31 22:05:50,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=400, Invalid=1762, Unknown=0, NotChecked=0, Total=2162 [2024-10-31 22:05:50,701 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 380 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:50,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1293 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 22:05:50,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-10-31 22:05:50,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1422. [2024-10-31 22:05:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1064 states have (on average 1.211466165413534) internal successors, (1289), 1146 states have internal predecessors, (1289), 192 states have call successors, (192), 158 states have call predecessors, (192), 165 states have return successors, (262), 173 states have call predecessors, (262), 192 states have call successors, (262) [2024-10-31 22:05:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1743 transitions. [2024-10-31 22:05:50,901 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1743 transitions. Word has length 96 [2024-10-31 22:05:50,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:50,902 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1743 transitions. [2024-10-31 22:05:50,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-10-31 22:05:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1743 transitions. [2024-10-31 22:05:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-31 22:05:50,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:50,908 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-31 22:05:50,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:05:51,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:05:51,109 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:51,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -562445059, now seen corresponding path program 1 times [2024-10-31 22:05:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885339930] [2024-10-31 22:05:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:05:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:05:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:05:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:05:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:05:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-31 22:05:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-31 22:05:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-31 22:05:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-31 22:05:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-31 22:05:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-10-31 22:05:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885339930] [2024-10-31 22:05:51,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885339930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:51,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292481887] [2024-10-31 22:05:51,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:05:51,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:05:51,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:51,350 INFO L87 Difference]: Start difference. First operand 1422 states and 1743 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-31 22:05:51,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:51,907 INFO L93 Difference]: Finished difference Result 2723 states and 3360 transitions. [2024-10-31 22:05:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:05:51,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 175 [2024-10-31 22:05:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:51,919 INFO L225 Difference]: With dead ends: 2723 [2024-10-31 22:05:51,920 INFO L226 Difference]: Without dead ends: 1440 [2024-10-31 22:05:51,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:05:51,925 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 153 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:51,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 371 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:05:51,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-31 22:05:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1440. [2024-10-31 22:05:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1082 states have (on average 1.2079482439926064) internal successors, (1307), 1164 states have internal predecessors, (1307), 192 states have call successors, (192), 158 states have call predecessors, (192), 165 states have return successors, (262), 173 states have call predecessors, (262), 192 states have call successors, (262) [2024-10-31 22:05:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1761 transitions. [2024-10-31 22:05:52,082 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1761 transitions. Word has length 175 [2024-10-31 22:05:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:52,083 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 1761 transitions. [2024-10-31 22:05:52,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-31 22:05:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1761 transitions. [2024-10-31 22:05:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-31 22:05:52,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:52,089 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:52,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:05:52,089 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:52,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:52,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1871308439, now seen corresponding path program 1 times [2024-10-31 22:05:52,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:52,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340506724] [2024-10-31 22:05:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:05:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:05:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:05:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:05:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:05:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-31 22:05:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-31 22:05:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-31 22:05:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-31 22:05:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 81 proven. 43 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-31 22:05:52,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:52,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340506724] [2024-10-31 22:05:52,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340506724] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:52,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602625669] [2024-10-31 22:05:52,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:52,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:52,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:52,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:05:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:05:52,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 136 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-31 22:05:53,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 77 proven. 41 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-31 22:05:53,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602625669] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:53,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:53,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 24 [2024-10-31 22:05:53,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80934502] [2024-10-31 22:05:53,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:53,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:05:53,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:53,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:05:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:05:53,636 INFO L87 Difference]: Start difference. First operand 1440 states and 1761 transitions. Second operand has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 21 states have internal predecessors, (230), 10 states have call successors, (33), 9 states have call predecessors, (33), 11 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) [2024-10-31 22:05:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:55,099 INFO L93 Difference]: Finished difference Result 3072 states and 3890 transitions. [2024-10-31 22:05:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-31 22:05:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 21 states have internal predecessors, (230), 10 states have call successors, (33), 9 states have call predecessors, (33), 11 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) Word has length 171 [2024-10-31 22:05:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:55,104 INFO L225 Difference]: With dead ends: 3072 [2024-10-31 22:05:55,104 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:05:55,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 364 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=514, Invalid=1936, Unknown=0, NotChecked=0, Total=2450 [2024-10-31 22:05:55,114 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 385 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:55,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 908 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 22:05:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:05:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:05:55,115 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) [2024-10-31 22:05:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:05:55,117 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2024-10-31 22:05:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:55,117 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:05:55,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 21 states have internal predecessors, (230), 10 states have call successors, (33), 9 states have call predecessors, (33), 11 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) [2024-10-31 22:05:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:05:55,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:05:55,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:05:55,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:05:55,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:05:55,325 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:55,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:06:06,829 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:06:06,860 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) .cse0 .cse1) (and (= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 (<= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-10-31 22:06:06,896 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse0 .cse1) (and (= |old(~pumpRunning~0)| 0) .cse2))) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-10-31 22:06:06,929 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|) .cse1) (and (= 2 ~waterLevel~0) .cse2 .cse1) (and .cse0 .cse2 .cse1)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse1) (and (<= 1 ~pumpRunning~0) .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-10-31 22:06:06,944 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse1 (<= |old(~waterLevel~0)| 1)) (.cse2 (<= 1 ~pumpRunning~0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1) (and .cse2 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse2 .cse3 .cse4) (and .cse0 .cse4))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1) (and .cse0 .cse4 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse4))) [2024-10-31 22:06:06,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:06:06 BoogieIcfgContainer [2024-10-31 22:06:06,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:06:06,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:06:06,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:06:06,960 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:06:06,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:42" (3/4) ... [2024-10-31 22:06:06,964 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:06:06,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-31 22:06:06,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 22:06:06,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 22:06:06,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 22:06:06,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 22:06:06,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 22:06:06,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 22:06:06,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-31 22:06:06,982 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-31 22:06:06,982 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 22:06:06,983 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:06:06,983 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:06:06,983 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:06:07,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:06:07,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:06:07,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:06:07,138 INFO L158 Benchmark]: Toolchain (without parser) took 25522.93ms. Allocated memory was 117.4MB in the beginning and 323.0MB in the end (delta: 205.5MB). Free memory was 82.0MB in the beginning and 257.9MB in the end (delta: -176.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,138 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:06:07,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.98ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 60.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.71ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 57.8MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,140 INFO L158 Benchmark]: Boogie Preprocessor took 126.29ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 55.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,140 INFO L158 Benchmark]: RCFGBuilder took 511.33ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 77.4MB in the end (delta: -22.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,141 INFO L158 Benchmark]: TraceAbstraction took 24035.26ms. Allocated memory was 117.4MB in the beginning and 323.0MB in the end (delta: 205.5MB). Free memory was 76.4MB in the beginning and 266.3MB in the end (delta: -189.9MB). Peak memory consumption was 184.2MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,141 INFO L158 Benchmark]: Witness Printer took 177.74ms. Allocated memory is still 323.0MB. Free memory was 266.3MB in the beginning and 257.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:06:07,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.98ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 60.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.71ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 57.8MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.29ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 55.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.33ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 77.4MB in the end (delta: -22.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24035.26ms. Allocated memory was 117.4MB in the beginning and 323.0MB in the end (delta: 205.5MB). Free memory was 76.4MB in the beginning and 266.3MB in the end (delta: -189.9MB). Peak memory consumption was 184.2MB. Max. memory is 16.1GB. * Witness Printer took 177.74ms. Allocated memory is still 323.0MB. Free memory was 266.3MB in the beginning and 257.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 277]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [277] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [381] - GenericResultAtLocation [Line: 448]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [448] - GenericResultAtLocation [Line: 483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [483] - GenericResultAtLocation [Line: 849]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [849] - GenericResultAtLocation [Line: 953]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [953] - GenericResultAtLocation [Line: 962]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [962] * 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: 958]: 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 9 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2056 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2005 mSDsluCounter, 5687 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4447 mSDsCounter, 528 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3362 IncrementalHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 528 mSolverCounterUnsat, 1240 mSDtfsCounter, 3362 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 834 GetRequests, 668 SyntacticMatches, 7 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1440occurred in iteration=10, InterpolantAutomatonStates: 139, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 518 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1070 NumberOfCodeBlocks, 1070 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1322 ConstructedInterpolants, 0 QuantifiedInterpolants, 2722 SizeOfPredicates, 2 NumberOfNonLiveVariables, 823 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 757/871 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: 392]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) || (((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0))) - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 391]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 160]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((pumpRunning == 0) && ((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) || ((2 == waterLevel) && (1 <= \old(pumpRunning))))) && (0 != systemActive)) && ((((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 93]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 877]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 279]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 66]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((((1 <= \old(pumpRunning)) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((((1 <= \old(switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))) && (0 != systemActive))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2))) && ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2))) && (((1 < \old(waterLevel)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel)))) && (((((((pumpRunning == \old(pumpRunning)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == \old(pumpRunning)) && (((long long) waterLevel + 1) <= \old(waterLevel))) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (((long long) waterLevel + 1) <= \old(waterLevel))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) < 1)) || (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((\old(waterLevel) != 1) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) < 1)) || (((pumpRunning == 0) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)))) && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 101]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || ((\old(pumpRunning) == 0) && (0 != systemActive))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((\old(pumpRunning) != 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel <= 1)))) && ((((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 865]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (2 == waterLevel))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 1))) Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && ((((long long) \old(waterLevel) + 1) == waterLevel) || (2 == waterLevel))) && (((((pumpRunning == 0) && (\old(waterLevel) <= 1)) || ((((1 <= pumpRunning) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || (((1 <= pumpRunning) && (0 != systemActive)) && (\old(waterLevel) == 2))) || ((pumpRunning == 0) && (\old(waterLevel) == 2)))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 179]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: ((((((pumpRunning < 1) || (0 != systemActive)) && (((pumpRunning == 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((1 <= pumpRunning) && (1 <= switchedOnBeforeTS)))) && (pumpRunning == \result)) && ((2 == waterLevel) || (waterLevel < 2))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 22:06:07,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_632ddc6f-829c-4bb3-8317-577d963959c8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE