./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/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_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/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_bb379517-d724-4594-b68a-d4e0aa5c4746/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 e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:06,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:06,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:00:06,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:06,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:06,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:06,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:06,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:06,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:06,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:06,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:06,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:06,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:06,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:06,244 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:06,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:06,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:06,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:06,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:06,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:06,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:06,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:06,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:06,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:06,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:06,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:06,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:06,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:06,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:06,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:06,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:06,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:06,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:06,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:06,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:06,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:06,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:06,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:06,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:06,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:06,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:06,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:06,263 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_bb379517-d724-4594-b68a-d4e0aa5c4746/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2024-10-31 22:00:06,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:06,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:06,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:06,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:06,593 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:06,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c Unable to find full path for "g++" [2024-10-31 22:00:08,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:08,998 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:08,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2024-10-31 22:00:09,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/data/8315c77d1/e3128e4993a74584824d79283f5e0617/FLAGb9b8f6535 [2024-10-31 22:00:09,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/data/8315c77d1/e3128e4993a74584824d79283f5e0617 [2024-10-31 22:00:09,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:09,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:09,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:09,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:09,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:09,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:09" (1/1) ... [2024-10-31 22:00:09,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62be0229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:09, skipping insertion in model container [2024-10-31 22:00:09,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:09" (1/1) ... [2024-10-31 22:00:09,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:09,846 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_bb379517-d724-4594-b68a-d4e0aa5c4746/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2024-10-31 22:00:09,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:09,868 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:09,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-10-31 22:00:09,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2024-10-31 22:00:09,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] [2024-10-31 22:00:09,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] [2024-10-31 22:00:09,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] [2024-10-31 22:00:09,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] [2024-10-31 22:00:09,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] [2024-10-31 22:00:09,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] [2024-10-31 22:00:10,007 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_bb379517-d724-4594-b68a-d4e0aa5c4746/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2024-10-31 22:00:10,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:10,037 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:10,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10 WrapperNode [2024-10-31 22:00:10,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:10,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:10,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:10,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:10,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,187 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 205 [2024-10-31 22:00:10,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:10,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:10,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:10,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:10,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,231 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,257 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 22:00:10,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:10,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:10,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:10,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:10,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (1/1) ... [2024-10-31 22:00:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:10,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:10,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:10,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 22:00:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 22:00:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:00:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:00:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:00:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:00:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 22:00:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 22:00:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-31 22:00:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-31 22:00:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 22:00:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 22:00:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:10,559 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:10,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:11,041 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:11,041 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:11,061 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:11,062 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:00:11,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:11 BoogieIcfgContainer [2024-10-31 22:00:11,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:11,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:11,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:11,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:11,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:09" (1/3) ... [2024-10-31 22:00:11,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e292e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:11, skipping insertion in model container [2024-10-31 22:00:11,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:10" (2/3) ... [2024-10-31 22:00:11,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e292e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:11, skipping insertion in model container [2024-10-31 22:00:11,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:11" (3/3) ... [2024-10-31 22:00:11,074 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2024-10-31 22:00:11,095 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:11,095 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:00:11,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:11,198 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;@2b5b7dc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:11,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:00:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 76 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:00:11,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 22:00:11,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:11,219 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 22:00:11,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:11,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,227 INFO L85 PathProgramCache]: Analyzing trace with hash 991645006, now seen corresponding path program 1 times [2024-10-31 22:00:11,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333155516] [2024-10-31 22:00:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:00:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 22:00:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,471 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 22:00:11,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333155516] [2024-10-31 22:00:11,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333155516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172142226] [2024-10-31 22:00:11,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:00:11,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:11,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:11,510 INFO L87 Difference]: Start difference. First operand has 88 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 76 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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 22:00:11,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:11,553 INFO L93 Difference]: Finished difference Result 167 states and 226 transitions. [2024-10-31 22:00:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:11,555 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 22:00:11,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:11,568 INFO L225 Difference]: With dead ends: 167 [2024-10-31 22:00:11,568 INFO L226 Difference]: Without dead ends: 79 [2024-10-31 22:00:11,572 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 22:00:11,579 INFO L432 NwaCegarLoop]: 110 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, 110 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 22:00:11,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:11,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-31 22:00:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-31 22:00:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 68 states have internal predecessors, (82), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:00:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2024-10-31 22:00:11,624 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 32 [2024-10-31 22:00:11,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:11,625 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2024-10-31 22:00:11,625 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 22:00:11,625 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2024-10-31 22:00:11,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:00:11,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:11,628 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] [2024-10-31 22:00:11,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:11,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:11,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,630 INFO L85 PathProgramCache]: Analyzing trace with hash -43910683, now seen corresponding path program 1 times [2024-10-31 22:00:11,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620769313] [2024-10-31 22:00:11,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:00:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:00:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,801 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 22:00:11,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620769313] [2024-10-31 22:00:11,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620769313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:11,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748302162] [2024-10-31 22:00:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:11,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:11,806 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:00:11,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:11,836 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2024-10-31 22:00:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:11,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 33 [2024-10-31 22:00:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:11,842 INFO L225 Difference]: With dead ends: 119 [2024-10-31 22:00:11,842 INFO L226 Difference]: Without dead ends: 70 [2024-10-31 22:00:11,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:11,845 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 17 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:11,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-31 22:00:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-31 22:00:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-31 22:00:11,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2024-10-31 22:00:11,859 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 33 [2024-10-31 22:00:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:11,859 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2024-10-31 22:00:11,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:00:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2024-10-31 22:00:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:00:11,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:11,865 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 22:00:11,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:11,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:11,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1721110732, now seen corresponding path program 1 times [2024-10-31 22:00:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181783533] [2024-10-31 22:00:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:00:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,204 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 22:00:12,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181783533] [2024-10-31 22:00:12,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181783533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:12,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39385882] [2024-10-31 22:00:12,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:12,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:12,209 INFO L87 Difference]: Start difference. First operand 70 states and 89 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 22:00:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:12,439 INFO L93 Difference]: Finished difference Result 237 states and 310 transitions. [2024-10-31 22:00:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:12,439 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 22:00:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:12,441 INFO L225 Difference]: With dead ends: 237 [2024-10-31 22:00:12,442 INFO L226 Difference]: Without dead ends: 175 [2024-10-31 22:00:12,442 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 22:00:12,448 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 194 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:12,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 383 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-31 22:00:12,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-10-31 22:00:12,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 142 states have internal predecessors, (176), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2024-10-31 22:00:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 215 transitions. [2024-10-31 22:00:12,489 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 215 transitions. Word has length 37 [2024-10-31 22:00:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:12,489 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 215 transitions. [2024-10-31 22:00:12,490 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 22:00:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 215 transitions. [2024-10-31 22:00:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 22:00:12,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:12,492 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] [2024-10-31 22:00:12,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:12,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:12,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash 845444465, now seen corresponding path program 1 times [2024-10-31 22:00:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88957112] [2024-10-31 22:00:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:00:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:00:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,573 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 22:00:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88957112] [2024-10-31 22:00:12,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88957112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782199738] [2024-10-31 22:00:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,577 INFO L87 Difference]: Start difference. First operand 165 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:12,633 INFO L93 Difference]: Finished difference Result 407 states and 539 transitions. [2024-10-31 22:00:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-10-31 22:00:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:12,636 INFO L225 Difference]: With dead ends: 407 [2024-10-31 22:00:12,636 INFO L226 Difference]: Without dead ends: 250 [2024-10-31 22:00:12,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,639 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 77 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:12,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 147 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-10-31 22:00:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2024-10-31 22:00:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 209 states have internal predecessors, (255), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-10-31 22:00:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 319 transitions. [2024-10-31 22:00:12,673 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 319 transitions. Word has length 42 [2024-10-31 22:00:12,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:12,674 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 319 transitions. [2024-10-31 22:00:12,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 319 transitions. [2024-10-31 22:00:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:00:12,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:12,676 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 22:00:12,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:12,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:12,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1493412905, now seen corresponding path program 1 times [2024-10-31 22:00:12,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971214848] [2024-10-31 22:00:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:00:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:00:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,827 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 22:00:12,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971214848] [2024-10-31 22:00:12,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971214848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:12,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514196902] [2024-10-31 22:00:12,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:12,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:12,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:12,830 INFO L87 Difference]: Start difference. First operand 248 states and 319 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 22:00:12,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:12,955 INFO L93 Difference]: Finished difference Result 485 states and 630 transitions. [2024-10-31 22:00:12,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:12,956 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 22:00:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:12,958 INFO L225 Difference]: With dead ends: 485 [2024-10-31 22:00:12,958 INFO L226 Difference]: Without dead ends: 245 [2024-10-31 22:00:12,960 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 22:00:12,961 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 68 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:12,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 368 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-31 22:00:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-10-31 22:00:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.287958115183246) internal successors, (246), 206 states have internal predecessors, (246), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-10-31 22:00:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 310 transitions. [2024-10-31 22:00:12,988 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 310 transitions. Word has length 41 [2024-10-31 22:00:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:12,989 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 310 transitions. [2024-10-31 22:00:12,989 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 22:00:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 310 transitions. [2024-10-31 22:00:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:00:12,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:12,991 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] [2024-10-31 22:00:12,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:12,992 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:12,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1271259535, now seen corresponding path program 1 times [2024-10-31 22:00:12,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274601325] [2024-10-31 22:00:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:00:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,148 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 22:00:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:13,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274601325] [2024-10-31 22:00:13,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274601325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316041609] [2024-10-31 22:00:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:13,152 INFO L87 Difference]: Start difference. First operand 245 states and 310 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 22:00:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:13,204 INFO L93 Difference]: Finished difference Result 488 states and 630 transitions. [2024-10-31 22:00:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:13,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 50 [2024-10-31 22:00:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:13,207 INFO L225 Difference]: With dead ends: 488 [2024-10-31 22:00:13,208 INFO L226 Difference]: Without dead ends: 251 [2024-10-31 22:00:13,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:13,212 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:13,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 337 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-31 22:00:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-10-31 22:00:13,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 197 states have (on average 1.2791878172588833) internal successors, (252), 212 states have internal predecessors, (252), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-10-31 22:00:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 316 transitions. [2024-10-31 22:00:13,253 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 316 transitions. Word has length 50 [2024-10-31 22:00:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:13,253 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 316 transitions. [2024-10-31 22:00:13,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 22:00:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 316 transitions. [2024-10-31 22:00:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:00:13,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:13,260 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:13,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:13,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -848557709, now seen corresponding path program 1 times [2024-10-31 22:00:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275791660] [2024-10-31 22:00:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:00:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,426 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 22:00:13,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:13,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275791660] [2024-10-31 22:00:13,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275791660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:13,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:13,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816972587] [2024-10-31 22:00:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:13,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:13,428 INFO L87 Difference]: Start difference. First operand 251 states and 316 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 22:00:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:13,486 INFO L93 Difference]: Finished difference Result 498 states and 640 transitions. [2024-10-31 22:00:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:13,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 50 [2024-10-31 22:00:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:13,491 INFO L225 Difference]: With dead ends: 498 [2024-10-31 22:00:13,491 INFO L226 Difference]: Without dead ends: 255 [2024-10-31 22:00:13,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:13,495 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:13,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:13,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-31 22:00:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-10-31 22:00:13,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 201 states have (on average 1.2736318407960199) internal successors, (256), 216 states have internal predecessors, (256), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-10-31 22:00:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 320 transitions. [2024-10-31 22:00:13,535 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 320 transitions. Word has length 50 [2024-10-31 22:00:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:13,536 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 320 transitions. [2024-10-31 22:00:13,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 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 22:00:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 320 transitions. [2024-10-31 22:00:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:00:13,542 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:13,545 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] [2024-10-31 22:00:13,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:13,545 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:13,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1640971253, now seen corresponding path program 1 times [2024-10-31 22:00:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970799925] [2024-10-31 22:00:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:00:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:13,683 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 22:00:13,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:13,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970799925] [2024-10-31 22:00:13,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970799925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:13,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:13,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065976842] [2024-10-31 22:00:13,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:13,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:13,690 INFO L87 Difference]: Start difference. First operand 255 states and 320 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:00:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:13,761 INFO L93 Difference]: Finished difference Result 629 states and 799 transitions. [2024-10-31 22:00:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 50 [2024-10-31 22:00:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:13,766 INFO L225 Difference]: With dead ends: 629 [2024-10-31 22:00:13,766 INFO L226 Difference]: Without dead ends: 382 [2024-10-31 22:00:13,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:13,771 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 39 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:13,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 160 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-10-31 22:00:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-10-31 22:00:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 300 states have (on average 1.2466666666666666) internal successors, (374), 318 states have internal predecessors, (374), 46 states have call successors, (46), 38 states have call predecessors, (46), 35 states have return successors, (53), 43 states have call predecessors, (53), 46 states have call successors, (53) [2024-10-31 22:00:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 473 transitions. [2024-10-31 22:00:13,831 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 473 transitions. Word has length 50 [2024-10-31 22:00:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:13,832 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 473 transitions. [2024-10-31 22:00:13,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:00:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 473 transitions. [2024-10-31 22:00:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-31 22:00:13,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:13,836 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] [2024-10-31 22:00:13,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:13,836 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:13,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,837 INFO L85 PathProgramCache]: Analyzing trace with hash 832166863, now seen corresponding path program 1 times [2024-10-31 22:00:13,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443016925] [2024-10-31 22:00:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:00:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:00:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,162 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 22:00:14,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443016925] [2024-10-31 22:00:14,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443016925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:14,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:14,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:00:14,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600615370] [2024-10-31 22:00:14,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:00:14,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:00:14,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:00:14,168 INFO L87 Difference]: Start difference. First operand 382 states and 473 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:14,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:14,566 INFO L93 Difference]: Finished difference Result 1198 states and 1533 transitions. [2024-10-31 22:00:14,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:00:14,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2024-10-31 22:00:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:14,572 INFO L225 Difference]: With dead ends: 1198 [2024-10-31 22:00:14,572 INFO L226 Difference]: Without dead ends: 951 [2024-10-31 22:00:14,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:14,575 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 250 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:14,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 562 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-10-31 22:00:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 931. [2024-10-31 22:00:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 737 states have (on average 1.2293080054274084) internal successors, (906), 787 states have internal predecessors, (906), 106 states have call successors, (106), 81 states have call predecessors, (106), 87 states have return successors, (132), 101 states have call predecessors, (132), 106 states have call successors, (132) [2024-10-31 22:00:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1144 transitions. [2024-10-31 22:00:14,683 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1144 transitions. Word has length 54 [2024-10-31 22:00:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:14,684 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1144 transitions. [2024-10-31 22:00:14,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1144 transitions. [2024-10-31 22:00:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-31 22:00:14,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:14,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-31 22:00:14,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:14,687 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:14,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1448493659, now seen corresponding path program 1 times [2024-10-31 22:00:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88034645] [2024-10-31 22:00:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:00:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-31 22:00:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:00:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:00:15,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88034645] [2024-10-31 22:00:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88034645] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049466726] [2024-10-31 22:00:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:15,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:15,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:15,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:00:15,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:15,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:00:15,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049466726] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:15,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:15,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-31 22:00:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098005508] [2024-10-31 22:00:15,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:15,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:15,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:15,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:15,741 INFO L87 Difference]: Start difference. First operand 931 states and 1144 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:17,000 INFO L93 Difference]: Finished difference Result 1715 states and 2172 transitions. [2024-10-31 22:00:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-31 22:00:17,001 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 85 [2024-10-31 22:00:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:17,008 INFO L225 Difference]: With dead ends: 1715 [2024-10-31 22:00:17,008 INFO L226 Difference]: Without dead ends: 913 [2024-10-31 22:00:17,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2024-10-31 22:00:17,013 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 242 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:17,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1366 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:00:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-10-31 22:00:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 818. [2024-10-31 22:00:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 633 states have (on average 1.2116903633491312) internal successors, (767), 677 states have internal predecessors, (767), 100 states have call successors, (100), 84 states have call predecessors, (100), 84 states have return successors, (119), 89 states have call predecessors, (119), 100 states have call successors, (119) [2024-10-31 22:00:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 986 transitions. [2024-10-31 22:00:17,133 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 986 transitions. Word has length 85 [2024-10-31 22:00:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:17,135 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 986 transitions. [2024-10-31 22:00:17,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 986 transitions. [2024-10-31 22:00:17,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-31 22:00:17,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:17,143 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 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 22:00:17,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:17,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:17,344 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:17,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,344 INFO L85 PathProgramCache]: Analyzing trace with hash -366703378, now seen corresponding path program 1 times [2024-10-31 22:00:17,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948325472] [2024-10-31 22:00:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-31 22:00:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-31 22:00:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-31 22:00:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-31 22:00:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-10-31 22:00:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948325472] [2024-10-31 22:00:17,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948325472] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903865207] [2024-10-31 22:00:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:17,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:17,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-31 22:00:17,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903865207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:17,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:17,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-10-31 22:00:17,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631551545] [2024-10-31 22:00:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:17,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:17,698 INFO L87 Difference]: Start difference. First operand 818 states and 986 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:00:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:17,747 INFO L93 Difference]: Finished difference Result 993 states and 1205 transitions. [2024-10-31 22:00:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:17,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 158 [2024-10-31 22:00:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:17,749 INFO L225 Difference]: With dead ends: 993 [2024-10-31 22:00:17,749 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:00:17,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:17,753 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 36 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:17,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 204 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:17,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:00:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:00:17,754 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 22:00:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:00:17,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2024-10-31 22:00:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:17,755 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:00:17,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:00:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:00:17,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:00:17,758 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:00:17,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:00:17,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:17,961 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:17,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:00:21,532 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:00:21,590 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse0 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (or (= ~pumpRunning~0 0) (not .cse0)) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (<= 1 |old(~pumpRunning~0)|)) (.cse4 (= |old(~waterLevel~0)| 2))) (or (and (= |old(~waterLevel~0)| 1) .cse1 .cse2) (and .cse1 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse3) .cse0 (and .cse1 .cse2 .cse4) (and .cse1 .cse3 .cse4))))) Eliminated clause: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) .cse4)) (or .cse3 (not .cse4)))) [2024-10-31 22:00:21,616 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |old(~waterLevel~0)| 2)) (.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 (= |old(~waterLevel~0)| 1) .cse1) (and .cse3 .cse1 .cse2) (and .cse0 (= 0 ~systemActive~0))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 (= 0 ~systemActive~0)))) [2024-10-31 22:00:21,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:00:21 BoogieIcfgContainer [2024-10-31 22:00:21,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:00:21,649 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:00:21,649 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:00:21,650 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:00:21,652 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:11" (3/4) ... [2024-10-31 22:00:21,655 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 22:00:21,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-31 22:00:21,669 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-10-31 22:00:21,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 22:00:21,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:00:21,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:00:21,671 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:00:21,794 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:00:21,795 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:00:21,795 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:00:21,796 INFO L158 Benchmark]: Toolchain (without parser) took 12494.66ms. Allocated memory was 127.9MB in the beginning and 232.8MB in the end (delta: 104.9MB). Free memory was 85.6MB in the beginning and 98.6MB in the end (delta: -13.0MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,796 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 91.3MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:21,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.46ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 64.2MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.65ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 64.2MB in the beginning and 126.5MB in the end (delta: -62.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,797 INFO L158 Benchmark]: Boogie Preprocessor took 97.72ms. Allocated memory is still 157.3MB. Free memory was 126.5MB in the beginning and 127.4MB in the end (delta: -907.4kB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,798 INFO L158 Benchmark]: RCFGBuilder took 776.47ms. Allocated memory is still 157.3MB. Free memory was 127.4MB in the beginning and 109.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,798 INFO L158 Benchmark]: TraceAbstraction took 10582.97ms. Allocated memory was 157.3MB in the beginning and 232.8MB in the end (delta: 75.5MB). Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,799 INFO L158 Benchmark]: Witness Printer took 145.78ms. Allocated memory is still 232.8MB. Free memory was 107.0MB in the beginning and 98.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:00:21,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 91.3MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.46ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 64.2MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.65ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 64.2MB in the beginning and 126.5MB in the end (delta: -62.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.72ms. Allocated memory is still 157.3MB. Free memory was 126.5MB in the beginning and 127.4MB in the end (delta: -907.4kB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * RCFGBuilder took 776.47ms. Allocated memory is still 157.3MB. Free memory was 127.4MB in the beginning and 109.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10582.97ms. Allocated memory was 157.3MB in the beginning and 232.8MB in the end (delta: 75.5MB). Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. * Witness Printer took 145.78ms. Allocated memory is still 232.8MB. Free memory was 107.0MB in the beginning and 98.6MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] - GenericResultAtLocation [Line: 589]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] - GenericResultAtLocation [Line: 931]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] - GenericResultAtLocation [Line: 966]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] * 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: 971]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 942 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 923 mSDsluCounter, 4209 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3082 mSDsCounter, 144 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1063 IncrementalHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 144 mSolverCounterUnsat, 1127 mSDtfsCounter, 1063 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 417 SyntacticMatches, 4 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=931occurred in iteration=9, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 127 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 946 ConstructedInterpolants, 0 QuantifiedInterpolants, 1562 SizeOfPredicates, 2 NumberOfNonLiveVariables, 770 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 441/464 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: 428]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 532]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 629]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 814]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: ((((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 602]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || (0 == systemActive)) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: (((((((((((((\old(waterLevel) == 1) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || ((1 <= \old(switchedOnBeforeTS)) && (1 <= \old(pumpRunning)))) || ((1 <= \old(pumpRunning)) && (\old(waterLevel) == 2))) || ((\old(pumpRunning) == 0) && (0 == systemActive))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == 2))) && (((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((((\old(pumpRunning) != 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2))) && (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && ((((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 418]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 802]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: (((((2 == waterLevel) || (\old(waterLevel) != 1)) && (((((((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 2)) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (\old(waterLevel) == 1)) && (1 == systemActive))) || (((1 <= pumpRunning) && (1 == systemActive)) && (\old(waterLevel) == 2))) || ((pumpRunning == 0) && (0 == systemActive)))) && ((((2 == waterLevel) || (\old(waterLevel) < waterLevel)) && (waterLevel <= 2)) || (\old(waterLevel) == waterLevel))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 707]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: (((((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) && (pumpRunning == \result)) && (((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 22:00:21,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb379517-d724-4594-b68a-d4e0aa5c4746/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