./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/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_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/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_780ba983-88fe-4ca3-b654-a3e592f94cea/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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:53:55,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:53:55,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:53:55,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:53:55,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:53:55,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:53:55,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:53:55,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:53:55,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:53:55,602 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:53:55,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:53:55,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:53:55,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:53:55,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:53:55,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:53:55,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:53:55,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:53:55,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:53:55,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:55,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:55,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:55,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:55,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:53:55,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:55,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:55,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:55,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:55,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:53:55,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:53:55,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:53:55,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:53:55,608 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_780ba983-88fe-4ca3-b654-a3e592f94cea/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 -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2024-11-28 04:53:55,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:53:55,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:53:55,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:53:55,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:53:55,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:53:55,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-11-28 04:53:58,996 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/data/46c518ff6/0d2b31e21b2247d790b0413781438ef5/FLAG82ccd771a [2024-11-28 04:53:59,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:53:59,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-11-28 04:53:59,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/data/46c518ff6/0d2b31e21b2247d790b0413781438ef5/FLAG82ccd771a [2024-11-28 04:53:59,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/data/46c518ff6/0d2b31e21b2247d790b0413781438ef5 [2024-11-28 04:53:59,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:53:59,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:53:59,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:59,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:53:59,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:53:59,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:59" (1/1) ... [2024-11-28 04:53:59,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b95ffe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:59, skipping insertion in model container [2024-11-28 04:53:59,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:59" (1/1) ... [2024-11-28 04:53:59,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:53:59,806 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_780ba983-88fe-4ca3-b654-a3e592f94cea/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-11-28 04:54:00,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:54:00,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:54:00,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-28 04:54:00,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-28 04:54:00,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-11-28 04:54:00,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2024-11-28 04:54:00,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2024-11-28 04:54:00,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2024-11-28 04:54:00,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2024-11-28 04:54:00,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2024-11-28 04:54:00,039 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_780ba983-88fe-4ca3-b654-a3e592f94cea/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-11-28 04:54:00,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:54:00,125 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:54:00,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00 WrapperNode [2024-11-28 04:54:00,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:54:00,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:54:00,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:54:00,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:54:00,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,182 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 213 [2024-11-28 04:54:00,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:54:00,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:54:00,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:54:00,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:54:00,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,232 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 04:54:00,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,245 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:54:00,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:54:00,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:54:00,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:54:00,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (1/1) ... [2024-11-28 04:54:00,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:54:00,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:00,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:54:00,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:54:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:54:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 04:54:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 04:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 04:54:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 04:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 04:54:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 04:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 04:54:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 04:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:54:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:54:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-28 04:54:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-28 04:54:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-28 04:54:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-28 04:54:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-28 04:54:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-28 04:54:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:54:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 04:54:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 04:54:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:54:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:54:00,444 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:54:00,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:54:00,791 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-28 04:54:00,791 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:54:00,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:54:00,805 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:54:00,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:00 BoogieIcfgContainer [2024-11-28 04:54:00,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:54:00,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:54:00,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:54:00,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:54:00,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:53:59" (1/3) ... [2024-11-28 04:54:00,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be2f170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:54:00, skipping insertion in model container [2024-11-28 04:54:00,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:00" (2/3) ... [2024-11-28 04:54:00,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be2f170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:54:00, skipping insertion in model container [2024-11-28 04:54:00,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:00" (3/3) ... [2024-11-28 04:54:00,822 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2024-11-28 04:54:00,844 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:54:00,846 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product47.cil.c that has 10 procedures, 103 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 04:54:00,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:54:00,939 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;@51385b1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:54:00,939 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:54:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:54:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:54:00,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:00,955 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:00,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:00,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash 868506466, now seen corresponding path program 1 times [2024-11-28 04:54:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:00,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553662720] [2024-11-28 04:54:00,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:01,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553662720] [2024-11-28 04:54:01,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553662720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:01,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:01,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:01,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952430378] [2024-11-28 04:54:01,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:01,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:54:01,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:01,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:54:01,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:54:01,270 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:54:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:01,320 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-11-28 04:54:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:54:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 04:54:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:01,336 INFO L225 Difference]: With dead ends: 197 [2024-11-28 04:54:01,337 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 04:54:01,343 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 04:54:01,349 INFO L435 NwaCegarLoop]: 130 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, 130 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 04:54:01,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:54:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 04:54:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 04:54:01,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 77 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:54:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-28 04:54:01,419 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-11-28 04:54:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:01,419 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-28 04:54:01,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:54:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-28 04:54:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:54:01,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:01,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:01,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:54:01,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:01,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash 466465948, now seen corresponding path program 1 times [2024-11-28 04:54:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:01,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144504128] [2024-11-28 04:54:01,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:01,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144504128] [2024-11-28 04:54:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144504128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:01,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:54:01,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233042822] [2024-11-28 04:54:01,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:01,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:01,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:01,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:01,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:01,637 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:54:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:01,662 INFO L93 Difference]: Finished difference Result 151 states and 193 transitions. [2024-11-28 04:54:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 04:54:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:01,665 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:54:01,665 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 04:54:01,666 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 04:54:01,667 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 16 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 198 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 04:54:01,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:54:01,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 04:54:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-28 04:54:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 04:54:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-28 04:54:01,680 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 32 [2024-11-28 04:54:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:01,681 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-28 04:54:01,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:54:01,681 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-28 04:54:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:54:01,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:01,683 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:01,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:54:01,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:01,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:01,684 INFO L85 PathProgramCache]: Analyzing trace with hash 454616413, now seen corresponding path program 1 times [2024-11-28 04:54:01,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:01,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561501582] [2024-11-28 04:54:01,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:01,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:01,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:01,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561501582] [2024-11-28 04:54:01,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561501582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:01,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:01,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:54:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206598768] [2024-11-28 04:54:01,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:01,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:01,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:01,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:01,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:01,802 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 04:54:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:01,846 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2024-11-28 04:54:01,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 36 [2024-11-28 04:54:01,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:01,849 INFO L225 Difference]: With dead ends: 241 [2024-11-28 04:54:01,849 INFO L226 Difference]: Without dead ends: 163 [2024-11-28 04:54:01,850 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 04:54:01,851 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 86 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:01,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 224 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:54:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-28 04:54:01,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-28 04:54:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 132 states have internal predecessors, (156), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 04:54:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 208 transitions. [2024-11-28 04:54:01,889 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 208 transitions. Word has length 36 [2024-11-28 04:54:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:01,889 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 208 transitions. [2024-11-28 04:54:01,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 04:54:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 208 transitions. [2024-11-28 04:54:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:54:01,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:01,896 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:01,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:54:01,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2102142547, now seen corresponding path program 1 times [2024-11-28 04:54:01,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:01,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647280465] [2024-11-28 04:54:01,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:54:02,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647280465] [2024-11-28 04:54:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647280465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:02,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:02,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:54:02,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219525375] [2024-11-28 04:54:02,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:02,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:54:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:02,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:54:02,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:54:02,119 INFO L87 Difference]: Start difference. First operand 160 states and 208 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:54:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:02,398 INFO L93 Difference]: Finished difference Result 410 states and 541 transitions. [2024-11-28 04:54:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:54:02,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-28 04:54:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:02,402 INFO L225 Difference]: With dead ends: 410 [2024-11-28 04:54:02,405 INFO L226 Difference]: Without dead ends: 258 [2024-11-28 04:54:02,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:54:02,411 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 79 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:02,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 458 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:02,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-28 04:54:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2024-11-28 04:54:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 207 states have internal predecessors, (244), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-11-28 04:54:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2024-11-28 04:54:02,468 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 40 [2024-11-28 04:54:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:02,468 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2024-11-28 04:54:02,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:54:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2024-11-28 04:54:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:54:02,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:02,471 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:02,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:54:02,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:02,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash -718764182, now seen corresponding path program 1 times [2024-11-28 04:54:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:02,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-28 04:54:02,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:02,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:02,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-28 04:54:02,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399070080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:02,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:02,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:54:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789635668] [2024-11-28 04:54:02,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:02,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:54:02,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:02,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:54:02,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:54:02,769 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:54:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:03,069 INFO L93 Difference]: Finished difference Result 962 states and 1269 transitions. [2024-11-28 04:54:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:54:03,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2024-11-28 04:54:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:03,087 INFO L225 Difference]: With dead ends: 962 [2024-11-28 04:54:03,088 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 04:54:03,091 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 04:54:03,093 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 158 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:03,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 374 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 04:54:03,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 694. [2024-11-28 04:54:03,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 517 states have (on average 1.2707930367504836) internal successors, (657), 557 states have internal predecessors, (657), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-11-28 04:54:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 897 transitions. [2024-11-28 04:54:03,251 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 897 transitions. Word has length 58 [2024-11-28 04:54:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:03,253 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 897 transitions. [2024-11-28 04:54:03,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:54:03,254 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 897 transitions. [2024-11-28 04:54:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:54:03,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:03,262 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:03,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:54:03,262 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:03,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:03,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2104967576, now seen corresponding path program 1 times [2024-11-28 04:54:03,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:03,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713096409] [2024-11-28 04:54:03,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:03,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:03,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:03,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713096409] [2024-11-28 04:54:03,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713096409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:03,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:03,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:54:03,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753087994] [2024-11-28 04:54:03,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:03,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:54:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:03,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:54:03,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:54:03,446 INFO L87 Difference]: Start difference. First operand 694 states and 897 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:54:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:03,579 INFO L93 Difference]: Finished difference Result 1398 states and 1878 transitions. [2024-11-28 04:54:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:54:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-11-28 04:54:03,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:03,588 INFO L225 Difference]: With dead ends: 1398 [2024-11-28 04:54:03,588 INFO L226 Difference]: Without dead ends: 712 [2024-11-28 04:54:03,592 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 04:54:03,595 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 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 04:54:03,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:54:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-28 04:54:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-28 04:54:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 535 states have (on average 1.2616822429906542) internal successors, (675), 575 states have internal predecessors, (675), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-11-28 04:54:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 915 transitions. [2024-11-28 04:54:03,714 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 915 transitions. Word has length 58 [2024-11-28 04:54:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:03,714 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 915 transitions. [2024-11-28 04:54:03,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:54:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 915 transitions. [2024-11-28 04:54:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:54:03,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:03,721 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:03,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:54:03,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:03,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash -181739542, now seen corresponding path program 1 times [2024-11-28 04:54:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058765388] [2024-11-28 04:54:03,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058765388] [2024-11-28 04:54:03,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058765388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:03,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:03,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:54:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031190049] [2024-11-28 04:54:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:03,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:54:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:03,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:54:03,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:54:03,904 INFO L87 Difference]: Start difference. First operand 712 states and 915 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:54:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:04,047 INFO L93 Difference]: Finished difference Result 1297 states and 1709 transitions. [2024-11-28 04:54:04,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:54:04,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2024-11-28 04:54:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:04,054 INFO L225 Difference]: With dead ends: 1297 [2024-11-28 04:54:04,054 INFO L226 Difference]: Without dead ends: 593 [2024-11-28 04:54:04,058 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 04:54:04,059 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 88 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:04,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:54:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-28 04:54:04,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 585. [2024-11-28 04:54:04,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 436 states have (on average 1.25) internal successors, (545), 467 states have internal predecessors, (545), 80 states have call successors, (80), 66 states have call predecessors, (80), 68 states have return successors, (116), 76 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-28 04:54:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 741 transitions. [2024-11-28 04:54:04,173 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 741 transitions. Word has length 58 [2024-11-28 04:54:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:04,175 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 741 transitions. [2024-11-28 04:54:04,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:54:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 741 transitions. [2024-11-28 04:54:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:54:04,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:04,178 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:04,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:54:04,178 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:04,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash -201063982, now seen corresponding path program 1 times [2024-11-28 04:54:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:04,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599161499] [2024-11-28 04:54:04,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:54:04,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599161499] [2024-11-28 04:54:04,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599161499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:04,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:04,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:54:04,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659368096] [2024-11-28 04:54:04,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:04,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:54:04,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:04,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:54:04,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:54:04,559 INFO L87 Difference]: Start difference. First operand 585 states and 741 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 04:54:05,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:05,447 INFO L93 Difference]: Finished difference Result 1735 states and 2279 transitions. [2024-11-28 04:54:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:54:05,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2024-11-28 04:54:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:05,459 INFO L225 Difference]: With dead ends: 1735 [2024-11-28 04:54:05,459 INFO L226 Difference]: Without dead ends: 1259 [2024-11-28 04:54:05,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:54:05,464 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 365 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:05,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 591 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:54:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-28 04:54:05,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1136. [2024-11-28 04:54:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 845 states have (on average 1.2284023668639052) internal successors, (1038), 907 states have internal predecessors, (1038), 153 states have call successors, (153), 117 states have call predecessors, (153), 137 states have return successors, (237), 150 states have call predecessors, (237), 153 states have call successors, (237) [2024-11-28 04:54:05,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1428 transitions. [2024-11-28 04:54:05,624 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1428 transitions. Word has length 62 [2024-11-28 04:54:05,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:05,624 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1428 transitions. [2024-11-28 04:54:05,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 04:54:05,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1428 transitions. [2024-11-28 04:54:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:54:05,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:05,630 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2024-11-28 04:54:05,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:54:05,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:05,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:05,631 INFO L85 PathProgramCache]: Analyzing trace with hash 922167942, now seen corresponding path program 1 times [2024-11-28 04:54:05,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159149589] [2024-11-28 04:54:05,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:05,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:54:05,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:05,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159149589] [2024-11-28 04:54:05,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159149589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:05,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:05,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:54:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447696616] [2024-11-28 04:54:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:05,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:54:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:05,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:54:05,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:54:05,725 INFO L87 Difference]: Start difference. First operand 1136 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:54:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:05,903 INFO L93 Difference]: Finished difference Result 1334 states and 1675 transitions. [2024-11-28 04:54:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:54:05,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2024-11-28 04:54:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:05,909 INFO L225 Difference]: With dead ends: 1334 [2024-11-28 04:54:05,909 INFO L226 Difference]: Without dead ends: 557 [2024-11-28 04:54:05,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:54:05,912 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 141 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:05,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 265 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:05,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-28 04:54:05,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-28 04:54:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 415 states have (on average 1.1927710843373494) internal successors, (495), 443 states have internal predecessors, (495), 73 states have call successors, (73), 58 states have call predecessors, (73), 68 states have return successors, (115), 73 states have call predecessors, (115), 73 states have call successors, (115) [2024-11-28 04:54:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 683 transitions. [2024-11-28 04:54:05,981 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 683 transitions. Word has length 91 [2024-11-28 04:54:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:05,981 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 683 transitions. [2024-11-28 04:54:05,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:54:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 683 transitions. [2024-11-28 04:54:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:54:05,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:05,984 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 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 04:54:05,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:54:05,984 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:05,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash 408308924, now seen corresponding path program 1 times [2024-11-28 04:54:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951825854] [2024-11-28 04:54:05,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 04:54:06,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:06,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951825854] [2024-11-28 04:54:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951825854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:06,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768823791] [2024-11-28 04:54:06,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:06,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:06,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:06,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:06,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:54:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:06,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:54:06,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:06,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 04:54:07,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768823791] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:07,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:07,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-28 04:54:07,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67125013] [2024-11-28 04:54:07,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:07,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:54:07,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:07,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:54:07,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:54:07,007 INFO L87 Difference]: Start difference. First operand 557 states and 683 transitions. Second operand has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:54:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:07,834 INFO L93 Difference]: Finished difference Result 1258 states and 1608 transitions. [2024-11-28 04:54:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:54:07,835 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 104 [2024-11-28 04:54:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:07,841 INFO L225 Difference]: With dead ends: 1258 [2024-11-28 04:54:07,841 INFO L226 Difference]: Without dead ends: 756 [2024-11-28 04:54:07,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:54:07,845 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 299 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:07,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1365 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:54:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-28 04:54:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 660. [2024-11-28 04:54:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 487 states have (on average 1.1848049281314168) internal successors, (577), 524 states have internal predecessors, (577), 88 states have call successors, (88), 76 states have call predecessors, (88), 84 states have return successors, (124), 86 states have call predecessors, (124), 88 states have call successors, (124) [2024-11-28 04:54:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 789 transitions. [2024-11-28 04:54:07,967 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 789 transitions. Word has length 104 [2024-11-28 04:54:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:07,967 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 789 transitions. [2024-11-28 04:54:07,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:54:07,968 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 789 transitions. [2024-11-28 04:54:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:54:07,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:07,972 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:54:07,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:54:08,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:54:08,177 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:08,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:08,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1672823508, now seen corresponding path program 1 times [2024-11-28 04:54:08,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:08,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137692355] [2024-11-28 04:54:08,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:08,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 86 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-28 04:54:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137692355] [2024-11-28 04:54:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137692355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773810665] [2024-11-28 04:54:08,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:08,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:08,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:08,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:54:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:08,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:54:08,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-28 04:54:09,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 73 proven. 38 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:54:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773810665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:09,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:09,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-28 04:54:09,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105255370] [2024-11-28 04:54:09,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:09,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:54:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:09,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:54:09,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:54:09,944 INFO L87 Difference]: Start difference. First operand 660 states and 789 transitions. Second operand has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-28 04:54:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:12,526 INFO L93 Difference]: Finished difference Result 1911 states and 2406 transitions. [2024-11-28 04:54:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-28 04:54:12,527 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) Word has length 187 [2024-11-28 04:54:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:12,536 INFO L225 Difference]: With dead ends: 1911 [2024-11-28 04:54:12,536 INFO L226 Difference]: Without dead ends: 1229 [2024-11-28 04:54:12,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 368 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 04:54:12,543 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 839 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:12,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 979 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:54:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-28 04:54:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1132. [2024-11-28 04:54:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 847 states have (on average 1.1168831168831168) internal successors, (946), 886 states have internal predecessors, (946), 154 states have call successors, (154), 137 states have call predecessors, (154), 130 states have return successors, (178), 132 states have call predecessors, (178), 154 states have call successors, (178) [2024-11-28 04:54:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1278 transitions. [2024-11-28 04:54:12,677 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1278 transitions. Word has length 187 [2024-11-28 04:54:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:12,677 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1278 transitions. [2024-11-28 04:54:12,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-28 04:54:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1278 transitions. [2024-11-28 04:54:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 04:54:12,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:12,684 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:12,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:54:12,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:54:12,885 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:12,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:12,885 INFO L85 PathProgramCache]: Analyzing trace with hash -342331762, now seen corresponding path program 1 times [2024-11-28 04:54:12,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:12,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367023769] [2024-11-28 04:54:12,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 85 proven. 64 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-28 04:54:13,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:13,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367023769] [2024-11-28 04:54:13,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367023769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:13,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574663086] [2024-11-28 04:54:13,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:13,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:13,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:13,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:13,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:54:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:13,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:54:13,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 190 proven. 9 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:54:13,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 94 proven. 54 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:54:14,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574663086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:14,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-28 04:54:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267537308] [2024-11-28 04:54:14,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:14,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:54:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:14,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:54:14,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:54:14,306 INFO L87 Difference]: Start difference. First operand 1132 states and 1278 transitions. Second operand has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-28 04:54:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:15,302 INFO L93 Difference]: Finished difference Result 2215 states and 2520 transitions. [2024-11-28 04:54:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:54:15,303 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) Word has length 211 [2024-11-28 04:54:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:15,312 INFO L225 Difference]: With dead ends: 2215 [2024-11-28 04:54:15,312 INFO L226 Difference]: Without dead ends: 1185 [2024-11-28 04:54:15,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:54:15,317 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 447 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:15,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 766 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:54:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-28 04:54:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1123. [2024-11-28 04:54:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 843 states have (on average 1.1091340450771057) internal successors, (935), 879 states have internal predecessors, (935), 145 states have call successors, (145), 138 states have call predecessors, (145), 134 states have return successors, (169), 129 states have call predecessors, (169), 145 states have call successors, (169) [2024-11-28 04:54:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1249 transitions. [2024-11-28 04:54:15,498 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1249 transitions. Word has length 211 [2024-11-28 04:54:15,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:15,498 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1249 transitions. [2024-11-28 04:54:15,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-28 04:54:15,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1249 transitions. [2024-11-28 04:54:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 04:54:15,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:15,504 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 04:54:15,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:54:15,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:54:15,709 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:15,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:15,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1295119437, now seen corresponding path program 1 times [2024-11-28 04:54:15,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:15,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14795829] [2024-11-28 04:54:15,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:15,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 90 proven. 56 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 04:54:16,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:16,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14795829] [2024-11-28 04:54:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14795829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:16,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560833521] [2024-11-28 04:54:16,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:16,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:16,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:54:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:16,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:54:16,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 134 proven. 25 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 04:54:17,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 95 proven. 44 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:54:17,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560833521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:17,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:17,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 21 [2024-11-28 04:54:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42000231] [2024-11-28 04:54:17,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:17,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:54:17,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:17,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:54:17,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:54:17,949 INFO L87 Difference]: Start difference. First operand 1123 states and 1249 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-11-28 04:54:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:19,168 INFO L93 Difference]: Finished difference Result 2165 states and 2451 transitions. [2024-11-28 04:54:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:54:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) Word has length 212 [2024-11-28 04:54:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:19,179 INFO L225 Difference]: With dead ends: 2165 [2024-11-28 04:54:19,179 INFO L226 Difference]: Without dead ends: 1531 [2024-11-28 04:54:19,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 418 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=943, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:54:19,184 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 621 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:19,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 846 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:54:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-28 04:54:19,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1395. [2024-11-28 04:54:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1047 states have (on average 1.1021967526265521) internal successors, (1154), 1085 states have internal predecessors, (1154), 183 states have call successors, (183), 174 states have call predecessors, (183), 164 states have return successors, (200), 163 states have call predecessors, (200), 183 states have call successors, (200) [2024-11-28 04:54:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1537 transitions. [2024-11-28 04:54:19,472 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1537 transitions. Word has length 212 [2024-11-28 04:54:19,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:19,476 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 1537 transitions. [2024-11-28 04:54:19,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-11-28 04:54:19,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1537 transitions. [2024-11-28 04:54:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-28 04:54:19,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:19,486 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 04:54:19,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:54:19,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:54:19,687 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:19,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:19,688 INFO L85 PathProgramCache]: Analyzing trace with hash -802018879, now seen corresponding path program 1 times [2024-11-28 04:54:19,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:19,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137994668] [2024-11-28 04:54:19,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:54:20,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:20,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137994668] [2024-11-28 04:54:20,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137994668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:20,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182390026] [2024-11-28 04:54:20,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:20,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:20,911 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:20,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:54:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:21,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:54:21,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 150 proven. 87 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:54:21,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 91 proven. 134 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-28 04:54:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182390026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:22,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:22,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 16] total 29 [2024-11-28 04:54:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244337830] [2024-11-28 04:54:22,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:22,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:54:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:22,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:54:22,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:54:22,759 INFO L87 Difference]: Start difference. First operand 1395 states and 1537 transitions. Second operand has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-11-28 04:54:24,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:24,228 INFO L93 Difference]: Finished difference Result 2262 states and 2508 transitions. [2024-11-28 04:54:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:54:24,230 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) Word has length 261 [2024-11-28 04:54:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:24,233 INFO L225 Difference]: With dead ends: 2262 [2024-11-28 04:54:24,234 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:54:24,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 511 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:54:24,240 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 843 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:24,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1283 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:54:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:54:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:54:24,242 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 04:54:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:54:24,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 261 [2024-11-28 04:54:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:24,245 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:54:24,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-11-28 04:54:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:54:24,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:54:24,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:54:24,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:54:24,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:54:24,456 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:24,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:54:45,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:54:45,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:54:45 BoogieIcfgContainer [2024-11-28 04:54:45,271 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:54:45,272 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:54:45,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:54:45,273 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:54:45,273 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:00" (3/4) ... [2024-11-28 04:54:45,276 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:54:45,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-28 04:54:45,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 04:54:45,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 04:54:45,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 04:54:45,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 04:54:45,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 04:54:45,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:54:45,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-28 04:54:45,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-28 04:54:45,301 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 04:54:45,305 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 04:54:45,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:54:45,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:54:45,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:54:45,449 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:54:45,451 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:54:45,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:54:45,452 INFO L158 Benchmark]: Toolchain (without parser) took 45937.07ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 119.0MB in the beginning and 428.9MB in the end (delta: -309.9MB). Peak memory consumption was 170.6MB. Max. memory is 16.1GB. [2024-11-28 04:54:45,453 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:45,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.52ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 99.9MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:54:45,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.89ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:45,454 INFO L158 Benchmark]: Boogie Preprocessor took 71.54ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:45,455 INFO L158 Benchmark]: RCFGBuilder took 549.93ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 78.6MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:54:45,455 INFO L158 Benchmark]: TraceAbstraction took 44460.34ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 78.1MB in the beginning and 433.1MB in the end (delta: -354.9MB). Peak memory consumption was 347.9MB. Max. memory is 16.1GB. [2024-11-28 04:54:45,456 INFO L158 Benchmark]: Witness Printer took 179.10ms. Allocated memory is still 629.1MB. Free memory was 433.1MB in the beginning and 428.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:45,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.52ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 99.9MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.89ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.54ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 549.93ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 78.6MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 44460.34ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 78.1MB in the beginning and 433.1MB in the end (delta: -354.9MB). Peak memory consumption was 347.9MB. Max. memory is 16.1GB. * Witness Printer took 179.10ms. Allocated memory is still 629.1MB. Free memory was 433.1MB in the beginning and 428.9MB in the end (delta: 4.2MB). There was no memory consumed. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * 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: 54]: 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 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4006 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3982 mSDsluCounter, 8340 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6459 mSDsCounter, 1372 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5998 IncrementalHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1372 mSolverCounterUnsat, 1881 mSDtfsCounter, 5998 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2209 GetRequests, 1945 SyntacticMatches, 25 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2103 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1395occurred in iteration=13, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 545 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 2417 NumberOfCodeBlocks, 2417 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 7947 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2897/3611 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: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 296]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 04:54:45,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780ba983-88fe-4ca3-b654-a3e592f94cea/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