./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB --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 bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:28,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:29,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:29,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:29,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:29,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:29,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:29,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:29,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:29,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:29,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:29,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:29,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:29,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:29,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:29,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:29,059 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:29,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:29,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:29,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:29,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:29,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:29,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:29,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:29,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:29,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:29,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:29,062 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 [2024-11-28 02:07:29,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:29,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:29,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:29,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:29,351 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:29,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2024-11-28 02:07:32,350 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/data/5fa5c20a5/63ac2fb2e0a2465cbcf4835aa371b54d/FLAG32587b5e8 [2024-11-28 02:07:32,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:32,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2024-11-28 02:07:32,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/data/5fa5c20a5/63ac2fb2e0a2465cbcf4835aa371b54d/FLAG32587b5e8 [2024-11-28 02:07:32,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/data/5fa5c20a5/63ac2fb2e0a2465cbcf4835aa371b54d [2024-11-28 02:07:32,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:32,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:32,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:32,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:32,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:32,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:32" (1/1) ... [2024-11-28 02:07:32,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6579c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32, skipping insertion in model container [2024-11-28 02:07:32,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:32" (1/1) ... [2024-11-28 02:07:32,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:33,213 WARN L250 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_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2024-11-28 02:07:33,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:33,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2024-11-28 02:07:33,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] [2024-11-28 02:07:33,309 WARN L250 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_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2024-11-28 02:07:33,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,341 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:33,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33 WrapperNode [2024-11-28 02:07:33,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:33,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:33,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:33,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:33,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,391 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2024-11-28 02:07:33,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:33,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:33,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:33,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:33,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,417 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:07:33,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,432 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:33,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:33,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:33,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:33,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:33,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:33,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 02:07:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 02:07:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 02:07:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 02:07:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 02:07:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 02:07:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:07:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:07:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 02:07:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 02:07:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 02:07:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 02:07:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-28 02:07:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-28 02:07:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 02:07:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 02:07:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:33,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:33,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:34,042 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:34,042 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:34,060 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:34,060 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:07:34,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:34 BoogieIcfgContainer [2024-11-28 02:07:34,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:34,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:34,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:34,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:34,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:32" (1/3) ... [2024-11-28 02:07:34,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712ddb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:34, skipping insertion in model container [2024-11-28 02:07:34,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33" (2/3) ... [2024-11-28 02:07:34,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712ddb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:34, skipping insertion in model container [2024-11-28 02:07:34,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:34" (3/3) ... [2024-11-28 02:07:34,074 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2024-11-28 02:07:34,092 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:34,093 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product54.cil.c that has 9 procedures, 94 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:07:34,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:34,192 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;@ac2d77e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:34,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 70 states have (on average 1.4) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:07:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 02:07:34,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:34,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:34,208 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:34,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:34,215 INFO L85 PathProgramCache]: Analyzing trace with hash -637508842, now seen corresponding path program 1 times [2024-11-28 02:07:34,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:34,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259754612] [2024-11-28 02:07:34,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:34,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:34,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:34,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259754612] [2024-11-28 02:07:34,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259754612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:34,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:34,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:34,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119735284] [2024-11-28 02:07:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:34,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:34,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:34,446 INFO L87 Difference]: Start difference. First operand has 94 states, 70 states have (on average 1.4) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:34,495 INFO L93 Difference]: Finished difference Result 180 states and 247 transitions. [2024-11-28 02:07:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-28 02:07:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:34,508 INFO L225 Difference]: With dead ends: 180 [2024-11-28 02:07:34,508 INFO L226 Difference]: Without dead ends: 85 [2024-11-28 02:07:34,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:34,516 INFO L435 NwaCegarLoop]: 120 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, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:34,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:34,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-28 02:07:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-28 02:07:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:07:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2024-11-28 02:07:34,572 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 19 [2024-11-28 02:07:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:34,572 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2024-11-28 02:07:34,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2024-11-28 02:07:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 02:07:34,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:34,578 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:34,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:34,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:34,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:34,579 INFO L85 PathProgramCache]: Analyzing trace with hash -731353992, now seen corresponding path program 1 times [2024-11-28 02:07:34,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:34,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70516310] [2024-11-28 02:07:34,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:34,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:34,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70516310] [2024-11-28 02:07:34,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70516310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:34,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:34,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:34,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105301135] [2024-11-28 02:07:34,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:34,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,739 INFO L87 Difference]: Start difference. First operand 85 states and 111 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:34,773 INFO L93 Difference]: Finished difference Result 137 states and 179 transitions. [2024-11-28 02:07:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-28 02:07:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:34,775 INFO L225 Difference]: With dead ends: 137 [2024-11-28 02:07:34,775 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 02:07:34,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,777 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 13 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:34,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 02:07:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-28 02:07:34,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 67 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:07:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-11-28 02:07:34,796 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2024-11-28 02:07:34,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:34,796 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-11-28 02:07:34,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-11-28 02:07:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 02:07:34,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:34,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:34,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:34,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:34,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1501700079, now seen corresponding path program 1 times [2024-11-28 02:07:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890208874] [2024-11-28 02:07:34,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:34,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:34,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:34,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890208874] [2024-11-28 02:07:34,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890208874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:34,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:34,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:34,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639949464] [2024-11-28 02:07:34,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:34,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,890 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:34,931 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2024-11-28 02:07:34,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:34,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-28 02:07:34,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:34,935 INFO L225 Difference]: With dead ends: 147 [2024-11-28 02:07:34,935 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 02:07:34,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,936 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 94 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:34,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 98 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 02:07:34,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-28 02:07:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 67 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:07:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2024-11-28 02:07:34,947 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 24 [2024-11-28 02:07:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:34,948 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2024-11-28 02:07:34,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-11-28 02:07:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:07:34,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:34,949 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:34,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:34,949 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:34,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:34,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1263948822, now seen corresponding path program 1 times [2024-11-28 02:07:34,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:34,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985534046] [2024-11-28 02:07:34,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:35,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:35,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985534046] [2024-11-28 02:07:35,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985534046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:35,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:35,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:35,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053956374] [2024-11-28 02:07:35,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:35,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:35,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:35,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:35,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:35,096 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:07:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:35,173 INFO L93 Difference]: Finished difference Result 189 states and 252 transitions. [2024-11-28 02:07:35,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-28 02:07:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:35,175 INFO L225 Difference]: With dead ends: 189 [2024-11-28 02:07:35,175 INFO L226 Difference]: Without dead ends: 119 [2024-11-28 02:07:35,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:35,177 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 55 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:35,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 178 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-28 02:07:35,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-28 02:07:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 89 states have (on average 1.303370786516854) internal successors, (116), 97 states have internal predecessors, (116), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 02:07:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2024-11-28 02:07:35,214 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 33 [2024-11-28 02:07:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:35,216 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2024-11-28 02:07:35,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:07:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2024-11-28 02:07:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:07:35,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:35,218 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:35,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:35,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:35,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -804955529, now seen corresponding path program 1 times [2024-11-28 02:07:35,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:35,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560169777] [2024-11-28 02:07:35,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560169777] [2024-11-28 02:07:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560169777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:35,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:35,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:35,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495146400] [2024-11-28 02:07:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:35,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:35,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:35,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:35,465 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:07:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:35,517 INFO L93 Difference]: Finished difference Result 230 states and 303 transitions. [2024-11-28 02:07:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:35,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-11-28 02:07:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:35,519 INFO L225 Difference]: With dead ends: 230 [2024-11-28 02:07:35,519 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 02:07:35,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:35,521 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:35,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 02:07:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 02:07:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 100 states have internal predecessors, (119), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 02:07:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2024-11-28 02:07:35,541 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 43 [2024-11-28 02:07:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:35,541 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2024-11-28 02:07:35,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:07:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2024-11-28 02:07:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:07:35,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:35,543 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:35,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:07:35,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:35,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1826023883, now seen corresponding path program 1 times [2024-11-28 02:07:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:35,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546930085] [2024-11-28 02:07:35,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:35,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546930085] [2024-11-28 02:07:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546930085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:35,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:35,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:35,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135692792] [2024-11-28 02:07:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:35,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:35,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:35,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:35,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:35,687 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:07:35,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:35,764 INFO L93 Difference]: Finished difference Result 235 states and 314 transitions. [2024-11-28 02:07:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:35,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-11-28 02:07:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:35,766 INFO L225 Difference]: With dead ends: 235 [2024-11-28 02:07:35,767 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 02:07:35,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:35,768 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:35,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 282 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:35,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 02:07:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-28 02:07:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 102 states have internal predecessors, (121), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 02:07:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 155 transitions. [2024-11-28 02:07:35,802 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 155 transitions. Word has length 43 [2024-11-28 02:07:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:35,802 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 155 transitions. [2024-11-28 02:07:35,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:07:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2024-11-28 02:07:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:07:35,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:35,807 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:35,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:35,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:35,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash 474798707, now seen corresponding path program 1 times [2024-11-28 02:07:35,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:35,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494198740] [2024-11-28 02:07:35,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:35,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:36,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:36,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494198740] [2024-11-28 02:07:36,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494198740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:36,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:36,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104142322] [2024-11-28 02:07:36,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:36,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:36,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:36,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:36,033 INFO L87 Difference]: Start difference. First operand 122 states and 155 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-11-28 02:07:36,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:36,237 INFO L93 Difference]: Finished difference Result 395 states and 523 transitions. [2024-11-28 02:07:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:36,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 43 [2024-11-28 02:07:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:36,241 INFO L225 Difference]: With dead ends: 395 [2024-11-28 02:07:36,244 INFO L226 Difference]: Without dead ends: 280 [2024-11-28 02:07:36,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:36,247 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:36,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 338 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:36,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-28 02:07:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 271. [2024-11-28 02:07:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 207 states have (on average 1.2705314009661837) internal successors, (263), 222 states have internal predecessors, (263), 32 states have call successors, (32), 30 states have call predecessors, (32), 31 states have return successors, (57), 29 states have call predecessors, (57), 32 states have call successors, (57) [2024-11-28 02:07:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 352 transitions. [2024-11-28 02:07:36,323 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 352 transitions. Word has length 43 [2024-11-28 02:07:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:36,325 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 352 transitions. [2024-11-28 02:07:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-11-28 02:07:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 352 transitions. [2024-11-28 02:07:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:07:36,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:36,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:36,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:07:36,327 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:36,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 213306648, now seen corresponding path program 1 times [2024-11-28 02:07:36,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:36,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235856802] [2024-11-28 02:07:36,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:36,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:36,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:36,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235856802] [2024-11-28 02:07:36,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235856802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:36,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:36,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:36,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431925797] [2024-11-28 02:07:36,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:36,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:36,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:36,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:36,518 INFO L87 Difference]: Start difference. First operand 271 states and 352 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:07:36,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:36,636 INFO L93 Difference]: Finished difference Result 533 states and 695 transitions. [2024-11-28 02:07:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-28 02:07:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:36,640 INFO L225 Difference]: With dead ends: 533 [2024-11-28 02:07:36,643 INFO L226 Difference]: Without dead ends: 269 [2024-11-28 02:07:36,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:36,646 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 35 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:36,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 364 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:36,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-28 02:07:36,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-11-28 02:07:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 205 states have (on average 1.2634146341463415) internal successors, (259), 220 states have internal predecessors, (259), 32 states have call successors, (32), 30 states have call predecessors, (32), 31 states have return successors, (57), 29 states have call predecessors, (57), 32 states have call successors, (57) [2024-11-28 02:07:36,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 348 transitions. [2024-11-28 02:07:36,690 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 348 transitions. Word has length 45 [2024-11-28 02:07:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:36,691 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 348 transitions. [2024-11-28 02:07:36,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:07:36,691 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 348 transitions. [2024-11-28 02:07:36,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 02:07:36,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:36,692 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:36,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:07:36,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:36,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1320263783, now seen corresponding path program 1 times [2024-11-28 02:07:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386293949] [2024-11-28 02:07:36,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:36,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386293949] [2024-11-28 02:07:36,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386293949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:36,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:36,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:36,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431232636] [2024-11-28 02:07:36,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:36,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:36,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:36,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:36,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:36,878 INFO L87 Difference]: Start difference. First operand 269 states and 348 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:07:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:37,016 INFO L93 Difference]: Finished difference Result 560 states and 761 transitions. [2024-11-28 02:07:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-28 02:07:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:37,025 INFO L225 Difference]: With dead ends: 560 [2024-11-28 02:07:37,026 INFO L226 Difference]: Without dead ends: 343 [2024-11-28 02:07:37,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:37,028 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 47 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:37,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 530 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-28 02:07:37,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2024-11-28 02:07:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 260 states have (on average 1.25) internal successors, (325), 277 states have internal predecessors, (325), 41 states have call successors, (41), 39 states have call predecessors, (41), 41 states have return successors, (83), 39 states have call predecessors, (83), 41 states have call successors, (83) [2024-11-28 02:07:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 449 transitions. [2024-11-28 02:07:37,092 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 449 transitions. Word has length 47 [2024-11-28 02:07:37,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:37,092 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 449 transitions. [2024-11-28 02:07:37,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:07:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 449 transitions. [2024-11-28 02:07:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 02:07:37,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:37,095 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:37,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:07:37,095 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:37,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:37,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1735106750, now seen corresponding path program 1 times [2024-11-28 02:07:37,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:37,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933589803] [2024-11-28 02:07:37,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:37,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:37,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933589803] [2024-11-28 02:07:37,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933589803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:37,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:37,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:37,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415858697] [2024-11-28 02:07:37,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:37,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:37,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:37,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:37,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:37,312 INFO L87 Difference]: Start difference. First operand 343 states and 449 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:07:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:37,625 INFO L93 Difference]: Finished difference Result 367 states and 479 transitions. [2024-11-28 02:07:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:07:37,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-28 02:07:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:37,632 INFO L225 Difference]: With dead ends: 367 [2024-11-28 02:07:37,632 INFO L226 Difference]: Without dead ends: 365 [2024-11-28 02:07:37,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:07:37,633 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 105 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:37,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 306 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:07:37,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-28 02:07:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-28 02:07:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 278 states have (on average 1.2338129496402879) internal successors, (343), 295 states have internal predecessors, (343), 41 states have call successors, (41), 39 states have call predecessors, (41), 45 states have return successors, (90), 43 states have call predecessors, (90), 41 states have call successors, (90) [2024-11-28 02:07:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 474 transitions. [2024-11-28 02:07:37,706 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 474 transitions. Word has length 49 [2024-11-28 02:07:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:37,706 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 474 transitions. [2024-11-28 02:07:37,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:07:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 474 transitions. [2024-11-28 02:07:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:07:37,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:37,709 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:37,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:07:37,712 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:37,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:37,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2089304299, now seen corresponding path program 1 times [2024-11-28 02:07:37,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:37,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347543683] [2024-11-28 02:07:37,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:37,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:07:37,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:37,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347543683] [2024-11-28 02:07:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347543683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:37,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:37,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158230605] [2024-11-28 02:07:37,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:37,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:37,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:37,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:37,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:37,913 INFO L87 Difference]: Start difference. First operand 365 states and 474 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:07:37,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:37,986 INFO L93 Difference]: Finished difference Result 682 states and 921 transitions. [2024-11-28 02:07:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:37,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2024-11-28 02:07:37,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:37,990 INFO L225 Difference]: With dead ends: 682 [2024-11-28 02:07:37,993 INFO L226 Difference]: Without dead ends: 371 [2024-11-28 02:07:37,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:37,995 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:37,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-28 02:07:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-11-28 02:07:38,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 284 states have (on average 1.2288732394366197) internal successors, (349), 301 states have internal predecessors, (349), 41 states have call successors, (41), 39 states have call predecessors, (41), 45 states have return successors, (90), 43 states have call predecessors, (90), 41 states have call successors, (90) [2024-11-28 02:07:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 480 transitions. [2024-11-28 02:07:38,064 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 480 transitions. Word has length 89 [2024-11-28 02:07:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:38,064 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 480 transitions. [2024-11-28 02:07:38,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:07:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 480 transitions. [2024-11-28 02:07:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:07:38,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:38,070 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:38,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:07:38,070 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:38,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:38,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1666602473, now seen corresponding path program 1 times [2024-11-28 02:07:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:38,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555508473] [2024-11-28 02:07:38,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:07:38,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:38,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555508473] [2024-11-28 02:07:38,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555508473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:38,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131337060] [2024-11-28 02:07:38,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:38,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:38,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:38,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:38,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:38,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:07:38,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:38,684 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:07:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131337060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:38,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:38,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-28 02:07:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286778807] [2024-11-28 02:07:38,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:38,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:38,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:38,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:38,891 INFO L87 Difference]: Start difference. First operand 371 states and 480 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:07:39,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:39,139 INFO L93 Difference]: Finished difference Result 858 states and 1171 transitions. [2024-11-28 02:07:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:07:39,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2024-11-28 02:07:39,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:39,144 INFO L225 Difference]: With dead ends: 858 [2024-11-28 02:07:39,144 INFO L226 Difference]: Without dead ends: 541 [2024-11-28 02:07:39,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 174 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:07:39,147 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 94 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:39,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 549 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:39,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-28 02:07:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 486. [2024-11-28 02:07:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 370 states have (on average 1.2297297297297298) internal successors, (455), 393 states have internal predecessors, (455), 55 states have call successors, (55), 52 states have call predecessors, (55), 60 states have return successors, (124), 54 states have call predecessors, (124), 55 states have call successors, (124) [2024-11-28 02:07:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 634 transitions. [2024-11-28 02:07:39,231 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 634 transitions. Word has length 89 [2024-11-28 02:07:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:39,231 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 634 transitions. [2024-11-28 02:07:39,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:07:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 634 transitions. [2024-11-28 02:07:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:07:39,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:39,239 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 02:07:39,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:39,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:07:39,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:39,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash 561866809, now seen corresponding path program 2 times [2024-11-28 02:07:39,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:39,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649394647] [2024-11-28 02:07:39,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:39,495 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:07:39,497 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 47 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 02:07:39,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:39,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649394647] [2024-11-28 02:07:39,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649394647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:39,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182193615] [2024-11-28 02:07:39,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:39,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:39,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:39,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:39,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:39,928 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:07:39,929 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:39,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:07:39,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 02:07:40,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 45 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 02:07:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182193615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:40,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:40,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 11 [2024-11-28 02:07:40,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436132335] [2024-11-28 02:07:40,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:40,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:07:40,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:40,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:07:40,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:07:40,532 INFO L87 Difference]: Start difference. First operand 486 states and 634 transitions. Second operand has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 02:07:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:40,739 INFO L93 Difference]: Finished difference Result 741 states and 967 transitions. [2024-11-28 02:07:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 131 [2024-11-28 02:07:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:40,741 INFO L225 Difference]: With dead ends: 741 [2024-11-28 02:07:40,741 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:07:40,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:07:40,744 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 82 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:40,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 861 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:07:40,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:07:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:07:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:07:40,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2024-11-28 02:07:40,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:40,745 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:07:40,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 02:07:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:07:40,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:07:40,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:07:40,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:07:40,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:07:40,954 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:40,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:07:42,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:42,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:42 BoogieIcfgContainer [2024-11-28 02:07:42,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:42,862 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:42,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:42,862 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:42,863 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:34" (3/4) ... [2024-11-28 02:07:42,865 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:07:42,870 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 02:07:42,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 02:07:42,880 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-28 02:07:42,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 02:07:42,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:07:42,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:07:42,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:07:42,993 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:07:42,993 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:07:42,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:42,995 INFO L158 Benchmark]: Toolchain (without parser) took 10240.08ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.3MB in the beginning and 132.4MB in the end (delta: -40.2MB). Peak memory consumption was 192.2MB. Max. memory is 16.1GB. [2024-11-28 02:07:42,996 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:42,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.65ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 73.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:42,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:42,999 INFO L158 Benchmark]: Boogie Preprocessor took 54.42ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:42,999 INFO L158 Benchmark]: RCFGBuilder took 613.66ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 51.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:43,000 INFO L158 Benchmark]: TraceAbstraction took 8795.91ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 51.1MB in the beginning and 140.6MB in the end (delta: -89.5MB). Peak memory consumption was 141.9MB. Max. memory is 16.1GB. [2024-11-28 02:07:43,000 INFO L158 Benchmark]: Witness Printer took 132.09ms. Allocated memory is still 352.3MB. Free memory was 140.6MB in the beginning and 132.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:43,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.65ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 73.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.42ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 613.66ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 51.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8795.91ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 51.1MB in the beginning and 140.6MB in the end (delta: -89.5MB). Peak memory consumption was 141.9MB. Max. memory is 16.1GB. * Witness Printer took 132.09ms. Allocated memory is still 352.3MB. Free memory was 140.6MB in the beginning and 132.4MB in the end (delta: 8.1MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 362]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] - GenericResultAtLocation [Line: 390]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] - GenericResultAtLocation [Line: 489]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 963]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 754 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 749 mSDsluCounter, 4564 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3075 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 1489 mSDtfsCounter, 518 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 459 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=12, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 894 NumberOfCodeBlocks, 894 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1097 ConstructedInterpolants, 0 QuantifiedInterpolants, 2029 SizeOfPredicates, 4 NumberOfNonLiveVariables, 712 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 305/366 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 64]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 02:07:43,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963cf71-5ec6-459f-bd0b-aa0dce787fe1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE