./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product38.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_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1 --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 c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:50:41,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:50:41,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:50:41,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:50:41,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:50:41,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:50:41,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:50:41,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:50:41,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:50:41,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:50:41,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:50:41,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:50:41,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:50:41,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:50:41,170 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:50:41,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:50:41,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:50:41,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:50:41,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:50:41,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:50:41,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:50:41,172 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_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1 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 -> c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb [2024-12-02 07:50:41,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:50:41,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:50:41,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:50:41,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:50:41,411 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:50:41,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2024-12-02 07:50:44,066 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/data/e4902e5f6/b8f4dbc168074cef9800e33b8f84824c/FLAG561846d17 [2024-12-02 07:50:44,275 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:50:44,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2024-12-02 07:50:44,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/data/e4902e5f6/b8f4dbc168074cef9800e33b8f84824c/FLAG561846d17 [2024-12-02 07:50:44,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/data/e4902e5f6/b8f4dbc168074cef9800e33b8f84824c [2024-12-02 07:50:44,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:50:44,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:50:44,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:50:44,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:50:44,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:50:44,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45db0ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44, skipping insertion in model container [2024-12-02 07:50:44,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:50:44,556 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_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c[15422,15435] [2024-12-02 07:50:44,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:50:44,578 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:50:44,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-12-02 07:50:44,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [159] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [354] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [720] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [729] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [825] [2024-12-02 07:50:44,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [920] [2024-12-02 07:50:44,627 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_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c[15422,15435] [2024-12-02 07:50:44,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:50:44,651 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:50:44,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44 WrapperNode [2024-12-02 07:50:44,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:50:44,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:50:44,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:50:44,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:50:44,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,687 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 200 [2024-12-02 07:50:44,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:50:44,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:50:44,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:50:44,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:50:44,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,711 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]. [2024-12-02 07:50:44,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:50:44,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:50:44,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:50:44,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:50:44,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (1/1) ... [2024-12-02 07:50:44,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:50:44,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:44,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:50:44,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:50:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:50:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 07:50:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 07:50:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 07:50:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 07:50:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:50:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:50:44,825 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:50:44,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:50:45,041 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-12-02 07:50:45,041 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:50:45,050 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:50:45,050 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 07:50:45,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:50:45 BoogieIcfgContainer [2024-12-02 07:50:45,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:50:45,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:50:45,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:50:45,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:50:45,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:50:44" (1/3) ... [2024-12-02 07:50:45,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2494ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:50:45, skipping insertion in model container [2024-12-02 07:50:45,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:50:44" (2/3) ... [2024-12-02 07:50:45,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2494ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:50:45, skipping insertion in model container [2024-12-02 07:50:45,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:50:45" (3/3) ... [2024-12-02 07:50:45,060 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product38.cil.c [2024-12-02 07:50:45,075 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:50:45,077 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product38.cil.c that has 8 procedures, 86 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 07:50:45,127 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:50:45,138 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;@6153b9f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:50:45,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:50:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 07:50:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 07:50:45,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:45,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:45,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:45,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash 598379099, now seen corresponding path program 1 times [2024-12-02 07:50:45,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:45,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102732637] [2024-12-02 07:50:45,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:45,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:45,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:45,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102732637] [2024-12-02 07:50:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102732637] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:45,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:50:45,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452022238] [2024-12-02 07:50:45,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:45,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:50:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:45,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:50:45,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:50:45,329 INFO L87 Difference]: Start difference. First operand has 86 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:45,352 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2024-12-02 07:50:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:50:45,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 07:50:45,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:45,360 INFO L225 Difference]: With dead ends: 164 [2024-12-02 07:50:45,360 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 07:50:45,363 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 [2024-12-02 07:50:45,366 INFO L435 NwaCegarLoop]: 109 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, 109 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 [2024-12-02 07:50:45,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:45,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 07:50:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-12-02 07:50:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 07:50:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-12-02 07:50:45,398 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 25 [2024-12-02 07:50:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:45,399 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-12-02 07:50:45,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-12-02 07:50:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 07:50:45,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:45,402 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:45,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:50:45,402 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:45,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:45,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1089087723, now seen corresponding path program 1 times [2024-12-02 07:50:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:45,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242727574] [2024-12-02 07:50:45,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:45,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:45,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242727574] [2024-12-02 07:50:45,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242727574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:45,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:50:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971804456] [2024-12-02 07:50:45,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:45,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:50:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:45,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:50:45,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:50:45,503 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:45,517 INFO L93 Difference]: Finished difference Result 121 states and 157 transitions. [2024-12-02 07:50:45,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:50:45,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 07:50:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:45,519 INFO L225 Difference]: With dead ends: 121 [2024-12-02 07:50:45,519 INFO L226 Difference]: Without dead ends: 69 [2024-12-02 07:50:45,519 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 [2024-12-02 07:50:45,520 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 13 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 160 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 [2024-12-02 07:50:45,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-12-02 07:50:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-12-02 07:50:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 60 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:50:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-12-02 07:50:45,529 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-12-02 07:50:45,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:45,529 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-12-02 07:50:45,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-12-02 07:50:45,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 07:50:45,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:45,531 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:45,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:50:45,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:45,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2128019496, now seen corresponding path program 1 times [2024-12-02 07:50:45,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:45,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316022374] [2024-12-02 07:50:45,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:45,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:45,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:45,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316022374] [2024-12-02 07:50:45,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316022374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:45,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:45,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:45,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729923103] [2024-12-02 07:50:45,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:45,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:45,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:45,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:45,649 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:45,694 INFO L93 Difference]: Finished difference Result 131 states and 172 transitions. [2024-12-02 07:50:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:45,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-12-02 07:50:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:45,696 INFO L225 Difference]: With dead ends: 131 [2024-12-02 07:50:45,696 INFO L226 Difference]: Without dead ends: 69 [2024-12-02 07:50:45,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:45,697 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 83 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:45,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 253 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-12-02 07:50:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-12-02 07:50:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.320754716981132) internal successors, (70), 60 states have internal predecessors, (70), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:50:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2024-12-02 07:50:45,707 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 30 [2024-12-02 07:50:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:45,707 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2024-12-02 07:50:45,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:50:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2024-12-02 07:50:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 07:50:45,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:45,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:45,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:50:45,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:45,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:45,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1309804461, now seen corresponding path program 1 times [2024-12-02 07:50:45,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:45,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219660613] [2024-12-02 07:50:45,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:45,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:45,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:45,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219660613] [2024-12-02 07:50:45,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219660613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:45,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:45,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:45,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293793445] [2024-12-02 07:50:45,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:45,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:45,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:45,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:45,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:45,790 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:50:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:45,990 INFO L93 Difference]: Finished difference Result 208 states and 266 transitions. [2024-12-02 07:50:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:50:45,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-12-02 07:50:45,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:45,992 INFO L225 Difference]: With dead ends: 208 [2024-12-02 07:50:45,992 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 07:50:45,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:50:45,994 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 182 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:45,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 284 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 07:50:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2024-12-02 07:50:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 108 states have (on average 1.2777777777777777) internal successors, (138), 115 states have internal predecessors, (138), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-12-02 07:50:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2024-12-02 07:50:46,014 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 40 [2024-12-02 07:50:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:46,014 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2024-12-02 07:50:46,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:50:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2024-12-02 07:50:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 07:50:46,015 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:46,016 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:46,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:50:46,016 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:46,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:46,016 INFO L85 PathProgramCache]: Analyzing trace with hash -443199782, now seen corresponding path program 1 times [2024-12-02 07:50:46,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:46,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179251667] [2024-12-02 07:50:46,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:46,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:46,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:46,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179251667] [2024-12-02 07:50:46,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179251667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:46,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:46,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:46,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971399663] [2024-12-02 07:50:46,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:46,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:46,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:46,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:46,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:46,125 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:46,157 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2024-12-02 07:50:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:46,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 07:50:46,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:46,159 INFO L225 Difference]: With dead ends: 276 [2024-12-02 07:50:46,159 INFO L226 Difference]: Without dead ends: 143 [2024-12-02 07:50:46,160 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 [2024-12-02 07:50:46,161 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 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 [2024-12-02 07:50:46,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-12-02 07:50:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-12-02 07:50:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 111 states have (on average 1.2702702702702702) internal successors, (141), 118 states have internal predecessors, (141), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-12-02 07:50:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2024-12-02 07:50:46,178 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 44 [2024-12-02 07:50:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:46,178 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2024-12-02 07:50:46,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2024-12-02 07:50:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 07:50:46,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:46,179 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:46,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:50:46,180 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:46,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1260848232, now seen corresponding path program 1 times [2024-12-02 07:50:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:46,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990290985] [2024-12-02 07:50:46,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:46,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:46,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990290985] [2024-12-02 07:50:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990290985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:46,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:46,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:50:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305599976] [2024-12-02 07:50:46,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:46,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:50:46,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:46,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:50:46,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:50:46,275 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:46,308 INFO L93 Difference]: Finished difference Result 281 states and 354 transitions. [2024-12-02 07:50:46,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:50:46,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 07:50:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:46,310 INFO L225 Difference]: With dead ends: 281 [2024-12-02 07:50:46,310 INFO L226 Difference]: Without dead ends: 145 [2024-12-02 07:50:46,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:50:46,311 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:46,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-12-02 07:50:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-12-02 07:50:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 113 states have (on average 1.2654867256637168) internal successors, (143), 120 states have internal predecessors, (143), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-12-02 07:50:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 178 transitions. [2024-12-02 07:50:46,328 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 178 transitions. Word has length 44 [2024-12-02 07:50:46,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:46,328 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 178 transitions. [2024-12-02 07:50:46,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 178 transitions. [2024-12-02 07:50:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 07:50:46,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:46,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:46,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:50:46,330 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:46,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:46,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1041993514, now seen corresponding path program 1 times [2024-12-02 07:50:46,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:46,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102665951] [2024-12-02 07:50:46,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:46,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:46,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102665951] [2024-12-02 07:50:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102665951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:50:46,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993877285] [2024-12-02 07:50:46,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:50:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:46,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:50:46,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:50:46,418 INFO L87 Difference]: Start difference. First operand 145 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:46,525 INFO L93 Difference]: Finished difference Result 448 states and 570 transitions. [2024-12-02 07:50:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:50:46,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 07:50:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:46,528 INFO L225 Difference]: With dead ends: 448 [2024-12-02 07:50:46,528 INFO L226 Difference]: Without dead ends: 310 [2024-12-02 07:50:46,529 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 [2024-12-02 07:50:46,530 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 119 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:46,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 289 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-12-02 07:50:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 195. [2024-12-02 07:50:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 151 states have (on average 1.2516556291390728) internal successors, (189), 160 states have internal predecessors, (189), 21 states have call successors, (21), 19 states have call predecessors, (21), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2024-12-02 07:50:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 237 transitions. [2024-12-02 07:50:46,564 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 237 transitions. Word has length 44 [2024-12-02 07:50:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:46,564 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 237 transitions. [2024-12-02 07:50:46,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:50:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 237 transitions. [2024-12-02 07:50:46,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 07:50:46,565 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:46,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:46,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:50:46,566 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:46,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1670266331, now seen corresponding path program 1 times [2024-12-02 07:50:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:46,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259068617] [2024-12-02 07:50:46,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:46,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:46,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259068617] [2024-12-02 07:50:46,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259068617] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:46,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:46,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:46,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83790387] [2024-12-02 07:50:46,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:46,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:46,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:46,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:46,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:46,682 INFO L87 Difference]: Start difference. First operand 195 states and 237 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:50:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:46,748 INFO L93 Difference]: Finished difference Result 381 states and 465 transitions. [2024-12-02 07:50:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-12-02 07:50:46,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:46,750 INFO L225 Difference]: With dead ends: 381 [2024-12-02 07:50:46,750 INFO L226 Difference]: Without dead ends: 193 [2024-12-02 07:50:46,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:46,752 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 34 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:46,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 320 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:46,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-12-02 07:50:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-12-02 07:50:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 149 states have (on average 1.2416107382550337) internal successors, (185), 158 states have internal predecessors, (185), 21 states have call successors, (21), 19 states have call predecessors, (21), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2024-12-02 07:50:46,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 233 transitions. [2024-12-02 07:50:46,779 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 233 transitions. Word has length 46 [2024-12-02 07:50:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:46,780 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 233 transitions. [2024-12-02 07:50:46,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:50:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 233 transitions. [2024-12-02 07:50:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 07:50:46,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:46,781 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:46,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:50:46,781 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:46,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1818955600, now seen corresponding path program 1 times [2024-12-02 07:50:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:46,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84132422] [2024-12-02 07:50:46,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:46,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:46,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:46,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84132422] [2024-12-02 07:50:46,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84132422] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:46,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:46,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:50:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012341367] [2024-12-02 07:50:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:46,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:50:46,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:46,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:50:46,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:50:46,911 INFO L87 Difference]: Start difference. First operand 193 states and 233 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:50:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:47,003 INFO L93 Difference]: Finished difference Result 333 states and 406 transitions. [2024-12-02 07:50:47,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:50:47,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-12-02 07:50:47,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:47,006 INFO L225 Difference]: With dead ends: 333 [2024-12-02 07:50:47,006 INFO L226 Difference]: Without dead ends: 193 [2024-12-02 07:50:47,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:50:47,007 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 60 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:47,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 741 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-12-02 07:50:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-12-02 07:50:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 149 states have (on average 1.221476510067114) internal successors, (182), 158 states have internal predecessors, (182), 21 states have call successors, (21), 19 states have call predecessors, (21), 22 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2024-12-02 07:50:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 228 transitions. [2024-12-02 07:50:47,033 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 228 transitions. Word has length 48 [2024-12-02 07:50:47,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:47,033 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 228 transitions. [2024-12-02 07:50:47,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:50:47,034 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 228 transitions. [2024-12-02 07:50:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 07:50:47,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:47,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:47,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:50:47,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:47,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1006521473, now seen corresponding path program 1 times [2024-12-02 07:50:47,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:47,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865065264] [2024-12-02 07:50:47,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:47,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:47,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:47,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:47,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865065264] [2024-12-02 07:50:47,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865065264] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:47,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:47,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:47,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875318107] [2024-12-02 07:50:47,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:47,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:47,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:47,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:47,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:47,135 INFO L87 Difference]: Start difference. First operand 193 states and 228 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:47,216 INFO L93 Difference]: Finished difference Result 434 states and 537 transitions. [2024-12-02 07:50:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 50 [2024-12-02 07:50:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:47,219 INFO L225 Difference]: With dead ends: 434 [2024-12-02 07:50:47,219 INFO L226 Difference]: Without dead ends: 294 [2024-12-02 07:50:47,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:47,220 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 60 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:47,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 365 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:47,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-02 07:50:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2024-12-02 07:50:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 223 states have (on average 1.2152466367713004) internal successors, (271), 234 states have internal predecessors, (271), 34 states have call successors, (34), 30 states have call predecessors, (34), 32 states have return successors, (42), 33 states have call predecessors, (42), 34 states have call successors, (42) [2024-12-02 07:50:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 347 transitions. [2024-12-02 07:50:47,253 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 347 transitions. Word has length 50 [2024-12-02 07:50:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:47,254 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 347 transitions. [2024-12-02 07:50:47,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 347 transitions. [2024-12-02 07:50:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 07:50:47,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:47,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:47,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:50:47,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:47,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:47,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1140534979, now seen corresponding path program 1 times [2024-12-02 07:50:47,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971370210] [2024-12-02 07:50:47,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:47,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971370210] [2024-12-02 07:50:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971370210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:50:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516229509] [2024-12-02 07:50:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:47,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:50:47,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:47,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:50:47,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:50:47,307 INFO L87 Difference]: Start difference. First operand 290 states and 347 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:47,347 INFO L93 Difference]: Finished difference Result 526 states and 636 transitions. [2024-12-02 07:50:47,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:50:47,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 50 [2024-12-02 07:50:47,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:47,349 INFO L225 Difference]: With dead ends: 526 [2024-12-02 07:50:47,349 INFO L226 Difference]: Without dead ends: 287 [2024-12-02 07:50:47,350 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 [2024-12-02 07:50:47,351 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:47,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-12-02 07:50:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-12-02 07:50:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 220 states have (on average 1.2136363636363636) internal successors, (267), 231 states have internal predecessors, (267), 34 states have call successors, (34), 30 states have call predecessors, (34), 32 states have return successors, (42), 33 states have call predecessors, (42), 34 states have call successors, (42) [2024-12-02 07:50:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 343 transitions. [2024-12-02 07:50:47,382 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 343 transitions. Word has length 50 [2024-12-02 07:50:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:47,382 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 343 transitions. [2024-12-02 07:50:47,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 343 transitions. [2024-12-02 07:50:47,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 07:50:47,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:47,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:47,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:50:47,383 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:47,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:47,384 INFO L85 PathProgramCache]: Analyzing trace with hash -921680261, now seen corresponding path program 1 times [2024-12-02 07:50:47,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:47,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389650106] [2024-12-02 07:50:47,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:47,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:47,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:47,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389650106] [2024-12-02 07:50:47,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389650106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:47,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:47,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:50:47,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98396557] [2024-12-02 07:50:47,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:47,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:47,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:47,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:47,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:47,447 INFO L87 Difference]: Start difference. First operand 287 states and 343 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:47,486 INFO L93 Difference]: Finished difference Result 506 states and 610 transitions. [2024-12-02 07:50:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:47,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 50 [2024-12-02 07:50:47,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:47,489 INFO L225 Difference]: With dead ends: 506 [2024-12-02 07:50:47,489 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 07:50:47,490 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 [2024-12-02 07:50:47,490 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:47,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 337 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:50:47,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 07:50:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-12-02 07:50:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 208 states have (on average 1.2067307692307692) internal successors, (251), 218 states have internal predecessors, (251), 32 states have call successors, (32), 29 states have call predecessors, (32), 29 states have return successors, (38), 30 states have call predecessors, (38), 32 states have call successors, (38) [2024-12-02 07:50:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2024-12-02 07:50:47,515 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 50 [2024-12-02 07:50:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:47,515 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2024-12-02 07:50:47,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 07:50:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2024-12-02 07:50:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 07:50:47,517 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:47,517 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:47,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:50:47,517 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:47,518 INFO L85 PathProgramCache]: Analyzing trace with hash -550291683, now seen corresponding path program 1 times [2024-12-02 07:50:47,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:47,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40436673] [2024-12-02 07:50:47,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 07:50:47,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:47,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40436673] [2024-12-02 07:50:47,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40436673] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:47,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942376957] [2024-12-02 07:50:47,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:47,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:47,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:47,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:50:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:47,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:50:47,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:50:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 07:50:48,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:50:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 07:50:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942376957] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:50:48,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:50:48,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 15 [2024-12-02 07:50:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913822451] [2024-12-02 07:50:48,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:50:48,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:50:48,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:48,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:50:48,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:50:48,306 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 15 states, 15 states have (on average 6.2) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2024-12-02 07:50:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:48,709 INFO L93 Difference]: Finished difference Result 552 states and 683 transitions. [2024-12-02 07:50:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:50:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 81 [2024-12-02 07:50:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:48,711 INFO L225 Difference]: With dead ends: 552 [2024-12-02 07:50:48,711 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:50:48,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=419, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:50:48,712 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 424 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:48,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 331 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:50:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:50:48,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:50:48,713 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) [2024-12-02 07:50:48,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:50:48,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-12-02 07:50:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:48,714 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:50:48,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2024-12-02 07:50:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:50:48,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:50:48,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:50:48,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:50:48,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:48,919 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:48,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 07:50:50,791 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:50:50,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:50:50 BoogieIcfgContainer [2024-12-02 07:50:50,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:50:50,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:50:50,800 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:50:50,800 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:50:50,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:50:45" (3/4) ... [2024-12-02 07:50:50,802 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 07:50:50,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 07:50:50,809 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-12-02 07:50:50,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 07:50:50,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:50:50,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:50:50,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:50:50,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:50:50,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:50:50,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:50:50,882 INFO L158 Benchmark]: Toolchain (without parser) took 6577.78ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.2MB in the beginning and 88.7MB in the end (delta: 3.5MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,882 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:50:50,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.97ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.33ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,883 INFO L158 Benchmark]: Boogie Preprocessor took 31.15ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 69.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:50:50,883 INFO L158 Benchmark]: RCFGBuilder took 330.45ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 53.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,884 INFO L158 Benchmark]: TraceAbstraction took 5747.20ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 53.0MB in the beginning and 94.8MB in the end (delta: -41.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,884 INFO L158 Benchmark]: Witness Printer took 81.35ms. Allocated memory is still 201.3MB. Free memory was 94.8MB in the beginning and 88.7MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:50:50,885 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.97ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.33ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.15ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 69.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.45ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 53.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5747.20ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 53.0MB in the beginning and 94.8MB in the end (delta: -41.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Witness Printer took 81.35ms. Allocated memory is still 201.3MB. Free memory was 94.8MB in the beginning and 88.7MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] - GenericResultAtLocation [Line: 159]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [159] - GenericResultAtLocation [Line: 354]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [354] - GenericResultAtLocation [Line: 720]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [720] - GenericResultAtLocation [Line: 729]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [729] - GenericResultAtLocation [Line: 825]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [825] - GenericResultAtLocation [Line: 920]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [920] * 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: 725]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 983 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 975 mSDsluCounter, 4188 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2933 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 619 IncrementalHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 1255 mSDtfsCounter, 619 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 188 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=10, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 125 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 724 ConstructedInterpolants, 0 QuantifiedInterpolants, 1398 SizeOfPredicates, 2 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 53/78 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: 103]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 102]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 741]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 07:50:50,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a4829b-a2ee-4aa8-854a-8a03d8bfca79/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE