./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl --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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:28:13,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:13,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:28:13,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:13,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:13,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:13,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:13,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:13,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:13,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:13,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:13,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:13,562 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:13,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:13,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:13,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:28:13,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:13,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:28:13,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:13,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:13,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:13,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:13,569 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:28:13,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:13,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:13,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:13,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:13,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:13,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:13,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:13,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:13,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:13,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:13,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:28:13,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:13,576 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:13,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:13,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:13,577 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:13,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2023-11-12 02:28:14,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:14,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:14,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:14,051 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:14,051 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:14,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2023-11-12 02:28:17,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:17,515 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:17,516 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2023-11-12 02:28:17,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/data/07a090d43/8e54fc70cd1e49559763ca6f2d826591/FLAG4ab5b8297 [2023-11-12 02:28:17,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/data/07a090d43/8e54fc70cd1e49559763ca6f2d826591 [2023-11-12 02:28:17,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:17,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:17,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:17,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:17,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:17,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:17" (1/1) ... [2023-11-12 02:28:17,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16197c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:17, skipping insertion in model container [2023-11-12 02:28:17,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:17" (1/1) ... [2023-11-12 02:28:17,650 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:17,958 WARN L240 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_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2023-11-12 02:28:18,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:18,072 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:18,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-11-12 02:28:18,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-11-12 02:28:18,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] [2023-11-12 02:28:18,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] [2023-11-12 02:28:18,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] [2023-11-12 02:28:18,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] [2023-11-12 02:28:18,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] [2023-11-12 02:28:18,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] [2023-11-12 02:28:18,133 WARN L240 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_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2023-11-12 02:28:18,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:18,197 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:18,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18 WrapperNode [2023-11-12 02:28:18,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:18,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:18,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:18,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:18,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,267 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 197 [2023-11-12 02:28:18,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:18,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:18,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:18,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:18,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:18,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:18,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:18,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:18,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (1/1) ... [2023-11-12 02:28:18,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:18,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:18,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:18,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:28:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:28:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:28:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:28:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:28:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:28:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:28:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:28:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:28:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:28:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-12 02:28:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-12 02:28:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-12 02:28:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-12 02:28:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:28:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:28:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:28:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:18,490 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:18,492 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:18,838 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:18,846 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:18,846 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:28:18,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:18 BoogieIcfgContainer [2023-11-12 02:28:18,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:18,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:28:18,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:28:18,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:28:18,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:28:17" (1/3) ... [2023-11-12 02:28:18,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33176536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:18, skipping insertion in model container [2023-11-12 02:28:18,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:18" (2/3) ... [2023-11-12 02:28:18,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33176536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:18, skipping insertion in model container [2023-11-12 02:28:18,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:18" (3/3) ... [2023-11-12 02:28:18,860 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2023-11-12 02:28:18,910 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:28:18,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:28:18,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:19,006 INFO L357 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, mHoare=true, 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;@47ab4f4c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:19,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:28:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 02:28:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:28:19,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:19,021 INFO L195 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] [2023-11-12 02:28:19,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:19,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1088804663, now seen corresponding path program 1 times [2023-11-12 02:28:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62872601] [2023-11-12 02:28:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:28:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:19,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:19,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62872601] [2023-11-12 02:28:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62872601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:19,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:19,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:28:19,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463042225] [2023-11-12 02:28:19,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:19,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:28:19,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:19,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:28:19,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:28:19,291 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) 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) [2023-11-12 02:28:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:19,330 INFO L93 Difference]: Finished difference Result 182 states and 247 transitions. [2023-11-12 02:28:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:28:19,336 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 [2023-11-12 02:28:19,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:19,349 INFO L225 Difference]: With dead ends: 182 [2023-11-12 02:28:19,349 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 02:28:19,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:28:19,361 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:19,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:28:19,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 02:28:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-12 02:28:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:28:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2023-11-12 02:28:19,425 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2023-11-12 02:28:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:19,425 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2023-11-12 02:28:19,426 INFO L496 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) [2023-11-12 02:28:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2023-11-12 02:28:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:28:19,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:19,429 INFO L195 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] [2023-11-12 02:28:19,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:28:19,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:19,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash 913970031, now seen corresponding path program 1 times [2023-11-12 02:28:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084891700] [2023-11-12 02:28:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:28:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:19,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:19,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084891700] [2023-11-12 02:28:19,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084891700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:19,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:19,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:28:19,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266854301] [2023-11-12 02:28:19,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:19,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:19,636 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:28:19,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:19,658 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2023-11-12 02:28:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:19,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2023-11-12 02:28:19,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:19,661 INFO L225 Difference]: With dead ends: 138 [2023-11-12 02:28:19,662 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:28:19,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:19,665 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 180 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 [2023-11-12 02:28:19,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:28:19,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:28:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:28:19,677 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), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:28:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-12 02:28:19,679 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2023-11-12 02:28:19,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:19,679 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-12 02:28:19,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:28:19,680 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-12 02:28:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:28:19,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:19,684 INFO L195 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] [2023-11-12 02:28:19,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:28:19,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:19,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1563838683, now seen corresponding path program 1 times [2023-11-12 02:28:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636430798] [2023-11-12 02:28:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:28:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:19,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636430798] [2023-11-12 02:28:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636430798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:19,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:28:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488541066] [2023-11-12 02:28:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:19,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:19,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:19,842 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2023-11-12 02:28:19,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:19,862 INFO L93 Difference]: Finished difference Result 147 states and 192 transitions. [2023-11-12 02:28:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:19,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 [2023-11-12 02:28:19,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:19,864 INFO L225 Difference]: With dead ends: 147 [2023-11-12 02:28:19,865 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:28:19,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:19,867 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 81 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 97 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 [2023-11-12 02:28:19,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:28:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:28:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:28:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:28:19,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2023-11-12 02:28:19,882 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 30 [2023-11-12 02:28:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:19,883 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2023-11-12 02:28:19,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2023-11-12 02:28:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2023-11-12 02:28:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 02:28:19,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:19,886 INFO L195 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] [2023-11-12 02:28:19,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:28:19,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:19,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1485355981, now seen corresponding path program 1 times [2023-11-12 02:28:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222680917] [2023-11-12 02:28:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:28:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:28:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:20,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:20,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222680917] [2023-11-12 02:28:20,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222680917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:20,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:20,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:20,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790559423] [2023-11-12 02:28:20,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:20,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:28:20,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:20,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:28:20,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:28:20,046 INFO L87 Difference]: Start difference. First operand 77 states and 98 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) [2023-11-12 02:28:20,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:20,335 INFO L93 Difference]: Finished difference Result 230 states and 292 transitions. [2023-11-12 02:28:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:28:20,336 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 [2023-11-12 02:28:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:20,339 INFO L225 Difference]: With dead ends: 230 [2023-11-12 02:28:20,339 INFO L226 Difference]: Without dead ends: 160 [2023-11-12 02:28:20,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:28:20,342 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 202 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:20,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 285 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:28:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-12 02:28:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-11-12 02:28:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.264957264957265) internal successors, (148), 125 states have internal predecessors, (148), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-12 02:28:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2023-11-12 02:28:20,401 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 40 [2023-11-12 02:28:20,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:20,401 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2023-11-12 02:28:20,402 INFO L496 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) [2023-11-12 02:28:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2023-11-12 02:28:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 02:28:20,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:20,404 INFO L195 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] [2023-11-12 02:28:20,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:28:20,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:20,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1430117211, now seen corresponding path program 1 times [2023-11-12 02:28:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842930451] [2023-11-12 02:28:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:28:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-12 02:28:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:20,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:20,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842930451] [2023-11-12 02:28:20,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842930451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:20,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:20,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:28:20,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871852460] [2023-11-12 02:28:20,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:20,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:20,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:20,672 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:28:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:20,995 INFO L93 Difference]: Finished difference Result 399 states and 509 transitions. [2023-11-12 02:28:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:20,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 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 [2023-11-12 02:28:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:21,004 INFO L225 Difference]: With dead ends: 399 [2023-11-12 02:28:21,004 INFO L226 Difference]: Without dead ends: 252 [2023-11-12 02:28:21,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:21,012 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 139 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:21,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 339 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:28:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-12 02:28:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2023-11-12 02:28:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 185 states have (on average 1.2540540540540541) internal successors, (232), 196 states have internal predecessors, (232), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-12 02:28:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 302 transitions. [2023-11-12 02:28:21,080 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 302 transitions. Word has length 46 [2023-11-12 02:28:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:21,083 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 302 transitions. [2023-11-12 02:28:21,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:28:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 302 transitions. [2023-11-12 02:28:21,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:28:21,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:21,091 INFO L195 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] [2023-11-12 02:28:21,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:28:21,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:21,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:21,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1782384523, now seen corresponding path program 1 times [2023-11-12 02:28:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:21,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319317037] [2023-11-12 02:28:21,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:21,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:28:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:28:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:21,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319317037] [2023-11-12 02:28:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319317037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:21,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:21,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:28:21,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139939656] [2023-11-12 02:28:21,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:21,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:28:21,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:28:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:28:21,283 INFO L87 Difference]: Start difference. First operand 244 states and 302 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:28:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:21,924 INFO L93 Difference]: Finished difference Result 590 states and 761 transitions. [2023-11-12 02:28:21,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-12 02:28:21,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2023-11-12 02:28:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:21,931 INFO L225 Difference]: With dead ends: 590 [2023-11-12 02:28:21,932 INFO L226 Difference]: Without dead ends: 443 [2023-11-12 02:28:21,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:28:21,940 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 368 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:21,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 317 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:28:21,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-12 02:28:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 405. [2023-11-12 02:28:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.2287581699346406) internal successors, (376), 326 states have internal predecessors, (376), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2023-11-12 02:28:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 503 transitions. [2023-11-12 02:28:22,009 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 503 transitions. Word has length 50 [2023-11-12 02:28:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:22,010 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 503 transitions. [2023-11-12 02:28:22,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:28:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 503 transitions. [2023-11-12 02:28:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:28:22,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:22,012 INFO L195 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] [2023-11-12 02:28:22,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:28:22,013 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:22,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1648371017, now seen corresponding path program 1 times [2023-11-12 02:28:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:22,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495582409] [2023-11-12 02:28:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:22,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:28:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:28:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:22,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:22,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495582409] [2023-11-12 02:28:22,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495582409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:22,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:22,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:28:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840184913] [2023-11-12 02:28:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:22,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:22,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:22,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:22,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:22,116 INFO L87 Difference]: Start difference. First operand 405 states and 503 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:28:22,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:22,437 INFO L93 Difference]: Finished difference Result 727 states and 905 transitions. [2023-11-12 02:28:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:22,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:28:22,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:22,444 INFO L225 Difference]: With dead ends: 727 [2023-11-12 02:28:22,444 INFO L226 Difference]: Without dead ends: 415 [2023-11-12 02:28:22,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:22,450 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 140 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:22,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 282 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:28:22,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-12 02:28:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 405. [2023-11-12 02:28:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.2254901960784315) internal successors, (375), 326 states have internal predecessors, (375), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2023-11-12 02:28:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 502 transitions. [2023-11-12 02:28:22,510 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 502 transitions. Word has length 50 [2023-11-12 02:28:22,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:22,512 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 502 transitions. [2023-11-12 02:28:22,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:28:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 502 transitions. [2023-11-12 02:28:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:28:22,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:22,514 INFO L195 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] [2023-11-12 02:28:22,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:28:22,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:22,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1867225735, now seen corresponding path program 1 times [2023-11-12 02:28:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:22,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616014729] [2023-11-12 02:28:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:28:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:28:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:22,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:22,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616014729] [2023-11-12 02:28:22,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616014729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:22,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:22,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:28:22,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068753998] [2023-11-12 02:28:22,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:22,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:28:22,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:22,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:28:22,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:28:22,707 INFO L87 Difference]: Start difference. First operand 405 states and 502 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:28:23,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:23,042 INFO L93 Difference]: Finished difference Result 832 states and 1043 transitions. [2023-11-12 02:28:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:28:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:23,046 INFO L225 Difference]: With dead ends: 832 [2023-11-12 02:28:23,046 INFO L226 Difference]: Without dead ends: 434 [2023-11-12 02:28:23,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:28:23,049 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 155 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:23,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 347 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:28:23,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-12 02:28:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 408. [2023-11-12 02:28:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 311 states have (on average 1.2186495176848875) internal successors, (379), 330 states have internal predecessors, (379), 49 states have call successors, (49), 38 states have call predecessors, (49), 47 states have return successors, (76), 50 states have call predecessors, (76), 49 states have call successors, (76) [2023-11-12 02:28:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 504 transitions. [2023-11-12 02:28:23,098 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 504 transitions. Word has length 50 [2023-11-12 02:28:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:23,098 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 504 transitions. [2023-11-12 02:28:23,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:28:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 504 transitions. [2023-11-12 02:28:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 02:28:23,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:23,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:23,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:28:23,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:23,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash 88017873, now seen corresponding path program 1 times [2023-11-12 02:28:23,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:23,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241574177] [2023-11-12 02:28:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:23,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:28:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:28:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:28:23,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:23,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241574177] [2023-11-12 02:28:23,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241574177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:23,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:23,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:28:23,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935186659] [2023-11-12 02:28:23,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:23,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:28:23,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:28:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:28:23,393 INFO L87 Difference]: Start difference. First operand 408 states and 504 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:28:24,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:24,389 INFO L93 Difference]: Finished difference Result 1174 states and 1506 transitions. [2023-11-12 02:28:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-12 02:28:24,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-12 02:28:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:24,398 INFO L225 Difference]: With dead ends: 1174 [2023-11-12 02:28:24,398 INFO L226 Difference]: Without dead ends: 773 [2023-11-12 02:28:24,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2023-11-12 02:28:24,403 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 189 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:24,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 912 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:28:24,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-11-12 02:28:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 758. [2023-11-12 02:28:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 568 states have (on average 1.1883802816901408) internal successors, (675), 602 states have internal predecessors, (675), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (166), 98 states have call predecessors, (166), 97 states have call successors, (166) [2023-11-12 02:28:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 938 transitions. [2023-11-12 02:28:24,481 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 938 transitions. Word has length 59 [2023-11-12 02:28:24,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:24,482 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 938 transitions. [2023-11-12 02:28:24,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:28:24,482 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 938 transitions. [2023-11-12 02:28:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 02:28:24,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:24,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:24,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:28:24,485 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:24,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash -229819681, now seen corresponding path program 1 times [2023-11-12 02:28:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42426934] [2023-11-12 02:28:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:28:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:28:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:28:24,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:24,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42426934] [2023-11-12 02:28:24,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42426934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:24,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:24,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:28:24,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732924748] [2023-11-12 02:28:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:24,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:28:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:28:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:28:24,640 INFO L87 Difference]: Start difference. First operand 758 states and 938 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:28:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:25,088 INFO L93 Difference]: Finished difference Result 1515 states and 1875 transitions. [2023-11-12 02:28:25,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:28:25,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2023-11-12 02:28:25,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:25,095 INFO L225 Difference]: With dead ends: 1515 [2023-11-12 02:28:25,095 INFO L226 Difference]: Without dead ends: 764 [2023-11-12 02:28:25,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:28:25,098 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 197 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:25,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 452 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:28:25,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2023-11-12 02:28:25,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 758. [2023-11-12 02:28:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 568 states have (on average 1.1742957746478873) internal successors, (667), 602 states have internal predecessors, (667), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (147), 98 states have call predecessors, (147), 97 states have call successors, (147) [2023-11-12 02:28:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 911 transitions. [2023-11-12 02:28:25,171 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 911 transitions. Word has length 60 [2023-11-12 02:28:25,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:25,172 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 911 transitions. [2023-11-12 02:28:25,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:28:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 911 transitions. [2023-11-12 02:28:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:28:25,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:25,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:25,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:28:25,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:25,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash -168137563, now seen corresponding path program 1 times [2023-11-12 02:28:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799687436] [2023-11-12 02:28:25,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:28:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:28:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:28:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-12 02:28:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:28:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:28:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:28:25,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:25,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799687436] [2023-11-12 02:28:25,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799687436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:25,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:25,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:28:25,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176469853] [2023-11-12 02:28:25,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:25,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:28:25,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:25,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:28:25,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:28:25,396 INFO L87 Difference]: Start difference. First operand 758 states and 911 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:28:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:25,689 INFO L93 Difference]: Finished difference Result 1513 states and 1844 transitions. [2023-11-12 02:28:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:28:25,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2023-11-12 02:28:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:25,696 INFO L225 Difference]: With dead ends: 1513 [2023-11-12 02:28:25,696 INFO L226 Difference]: Without dead ends: 762 [2023-11-12 02:28:25,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:25,702 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 134 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:25,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:28:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-11-12 02:28:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2023-11-12 02:28:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 570 states have (on average 1.1666666666666667) internal successors, (665), 604 states have internal predecessors, (665), 97 states have call successors, (97), 76 states have call predecessors, (97), 94 states have return successors, (150), 98 states have call predecessors, (150), 97 states have call successors, (150) [2023-11-12 02:28:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 912 transitions. [2023-11-12 02:28:25,787 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 912 transitions. Word has length 97 [2023-11-12 02:28:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:25,788 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 912 transitions. [2023-11-12 02:28:25,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:28:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 912 transitions. [2023-11-12 02:28:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:28:25,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:25,797 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:25,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:28:25,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:25,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2079180121, now seen corresponding path program 1 times [2023-11-12 02:28:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533386329] [2023-11-12 02:28:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:28:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:28:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:28:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-12 02:28:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:28:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:28:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:28:26,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:26,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533386329] [2023-11-12 02:28:26,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533386329] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:26,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511919250] [2023-11-12 02:28:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:26,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:26,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:26,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:26,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:28:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:28:26,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:28:26,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:28:26,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511919250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:26,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:28:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2023-11-12 02:28:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393295609] [2023-11-12 02:28:26,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:26,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:28:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:26,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:28:26,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:28:26,366 INFO L87 Difference]: Start difference. First operand 762 states and 912 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:28:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:26,433 INFO L93 Difference]: Finished difference Result 1371 states and 1660 transitions. [2023-11-12 02:28:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:28:26,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2023-11-12 02:28:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:26,450 INFO L225 Difference]: With dead ends: 1371 [2023-11-12 02:28:26,450 INFO L226 Difference]: Without dead ends: 616 [2023-11-12 02:28:26,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:28:26,454 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 8 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:26,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 280 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:28:26,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-12 02:28:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2023-11-12 02:28:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 460 states have (on average 1.1652173913043478) internal successors, (536), 488 states have internal predecessors, (536), 81 states have call successors, (81), 64 states have call predecessors, (81), 74 states have return successors, (110), 78 states have call predecessors, (110), 81 states have call successors, (110) [2023-11-12 02:28:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 727 transitions. [2023-11-12 02:28:26,503 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 727 transitions. Word has length 97 [2023-11-12 02:28:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:26,503 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 727 transitions. [2023-11-12 02:28:26,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:28:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 727 transitions. [2023-11-12 02:28:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:28:26,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:26,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:26,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:26,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:28:26,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:26,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:26,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1353786525, now seen corresponding path program 1 times [2023-11-12 02:28:26,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:26,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465630259] [2023-11-12 02:28:26,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:26,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:28:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:28:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:28:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:28:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:28:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:28:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:28:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:28:27,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:27,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465630259] [2023-11-12 02:28:27,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465630259] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:27,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707907063] [2023-11-12 02:28:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:27,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:27,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:27,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:27,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:28:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:28:27,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:28:27,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:28:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:28:27,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707907063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:28:27,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:28:27,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 22 [2023-11-12 02:28:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169621615] [2023-11-12 02:28:27,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:28:27,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-12 02:28:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:27,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-12 02:28:27,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:28:27,769 INFO L87 Difference]: Start difference. First operand 616 states and 727 transitions. Second operand has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-12 02:28:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:29,491 INFO L93 Difference]: Finished difference Result 1299 states and 1586 transitions. [2023-11-12 02:28:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-12 02:28:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) Word has length 97 [2023-11-12 02:28:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:29,493 INFO L225 Difference]: With dead ends: 1299 [2023-11-12 02:28:29,493 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:28:29,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 204 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1496 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1233, Invalid=4317, Unknown=0, NotChecked=0, Total=5550 [2023-11-12 02:28:29,499 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 885 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:29,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 562 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:28:29,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:28:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:28:29,502 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) [2023-11-12 02:28:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:28:29,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2023-11-12 02:28:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:29,503 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:28:29,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-12 02:28:29,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:28:29,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:28:29,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:28:29,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:29,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:29,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:28:31,853 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2023-11-12 02:28:31,854 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2023-11-12 02:28:31,854 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 119 130) no Hoare annotation was computed. [2023-11-12 02:28:31,854 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 119 130) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse1 (not .cse5)) (.cse7 (not (= ~pumpRunning~0 1))) (.cse0 (< 2 ~waterLevel~0)) (.cse2 (not (= ~pumpRunning~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (not .cse3))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse3 .cse4 .cse7) (or .cse0 .cse2 .cse4 .cse5 .cse6)))) [2023-11-12 02:28:31,854 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2023-11-12 02:28:31,855 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2023-11-12 02:28:31,855 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2023-11-12 02:28:31,855 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 294 317) no Hoare annotation was computed. [2023-11-12 02:28:31,855 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2023-11-12 02:28:31,855 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2023-11-12 02:28:31,855 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 82) no Hoare annotation was computed. [2023-11-12 02:28:31,855 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 54 86) no Hoare annotation was computed. [2023-11-12 02:28:31,856 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse11 (= 1 ~systemActive~0)) (.cse12 (= |old(~pumpRunning~0)| 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~methaneLevelCritical~0 0))) (let ((.cse7 (not .cse10)) (.cse8 (and .cse4 .cse10 .cse0 .cse11 .cse12 .cse9)) (.cse2 (= ~pumpRunning~0 1)) (.cse6 (not .cse12)) (.cse3 (not .cse11)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (let ((.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2) .cse3 (not (= |old(~pumpRunning~0)| 1)) (and .cse4 .cse0 .cse1) .cse5)) (or (< 1 |old(~waterLevel~0)|) .cse6 .cse3 .cse7 .cse8) (or .cse6 .cse3 .cse7 .cse8 .cse5 (and .cse9 .cse2)) (or .cse6 (and .cse4 .cse9) .cse10 .cse3 .cse5)))) [2023-11-12 02:28:31,856 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-11-12 02:28:31,856 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 163 171) no Hoare annotation was computed. [2023-11-12 02:28:31,856 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-11-12 02:28:31,856 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 352 376) no Hoare annotation was computed. [2023-11-12 02:28:31,856 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2023-11-12 02:28:31,856 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L99-2(lines 95 106) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 586 593) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 294 317) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 368) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 402 409) no Hoare annotation was computed. [2023-11-12 02:28:31,857 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 83) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 421 429) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point L214(lines 189 218) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2023-11-12 02:28:31,858 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2023-11-12 02:28:31,859 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 189 218) the Hoare annotation is: true [2023-11-12 02:28:31,859 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2023-11-12 02:28:31,859 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2023-11-12 02:28:31,859 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2023-11-12 02:28:31,859 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2023-11-12 02:28:31,859 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 131 139) the Hoare annotation is: true [2023-11-12 02:28:31,859 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 131 139) no Hoare annotation was computed. [2023-11-12 02:28:31,859 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 (not .cse0) .cse2 .cse3) (and .cse5 .cse6 .cse1 .cse2) (and .cse6 .cse1 .cse2 .cse4))) [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 282) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 502) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L275-2(lines 275 282) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 252 261) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 562 568) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 265 287) no Hoare annotation was computed. [2023-11-12 02:28:31,860 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 536) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 244 250) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point L545(lines 486 549) no Hoare annotation was computed. [2023-11-12 02:28:31,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 (not .cse0) .cse2 .cse3) (and .cse5 .cse6 .cse1 .cse2) (and .cse6 .cse1 .cse2 .cse4))) [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 569 575) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 537) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 576 584) no Hoare annotation was computed. [2023-11-12 02:28:31,862 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2023-11-12 02:28:31,862 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2023-11-12 02:28:31,863 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 107 118) no Hoare annotation was computed. [2023-11-12 02:28:31,863 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 107 118) the Hoare annotation is: (let ((.cse5 (< 1 |old(~waterLevel~0)|)) (.cse2 (not (= ~pumpRunning~0 1))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not .cse1) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse3) (or .cse5 .cse0 .cse2 .cse3) (or .cse6 .cse1 .cse0 .cse3 .cse4))) [2023-11-12 02:28:31,863 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-11-12 02:28:31,863 INFO L899 garLoopResultBuilder]: For program point L475-2(lines 475 479) no Hoare annotation was computed. [2023-11-12 02:28:31,863 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-11-12 02:28:31,863 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2023-11-12 02:28:31,863 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 182) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__highWaterSensor_returnLabel#1(lines 377 384) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 326 350) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 172 185) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 466 484) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0)) .cse0) (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1))))) [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2023-11-12 02:28:31,864 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 347) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 398) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1|))) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 .cse2))) [2023-11-12 02:28:31,865 INFO L899 garLoopResultBuilder]: For program point L392-2(lines 385 401) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L899 garLoopResultBuilder]: For program point L390-1(line 390) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2023-11-12 02:28:31,865 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2023-11-12 02:28:31,865 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 420) the Hoare annotation is: true [2023-11-12 02:28:31,866 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 410 420) no Hoare annotation was computed. [2023-11-12 02:28:31,868 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:31,870 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:28:31,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:28:31 BoogieIcfgContainer [2023-11-12 02:28:31,883 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:28:31,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:31,884 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:31,884 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:31,885 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:18" (3/4) ... [2023-11-12 02:28:31,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-12 02:28:31,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:28:31,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-12 02:28:31,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-12 02:28:31,899 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:28:31,900 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:28:31,900 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:28:31,901 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:28:31,901 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:28:32,017 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:28:32,018 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:28:32,018 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:32,019 INFO L158 Benchmark]: Toolchain (without parser) took 14453.17ms. Allocated memory was 130.0MB in the beginning and 220.2MB in the end (delta: 90.2MB). Free memory was 90.7MB in the beginning and 170.5MB in the end (delta: -79.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,019 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 101.4MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:32,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.37ms. Allocated memory is still 130.0MB. Free memory was 90.7MB in the beginning and 71.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.69ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,020 INFO L158 Benchmark]: Boogie Preprocessor took 43.97ms. Allocated memory is still 130.0MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,021 INFO L158 Benchmark]: RCFGBuilder took 535.91ms. Allocated memory is still 130.0MB. Free memory was 67.6MB in the beginning and 51.2MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,021 INFO L158 Benchmark]: TraceAbstraction took 13030.96ms. Allocated memory was 130.0MB in the beginning and 220.2MB in the end (delta: 90.2MB). Free memory was 50.4MB in the beginning and 177.9MB in the end (delta: -127.5MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,021 INFO L158 Benchmark]: Witness Printer took 134.32ms. Allocated memory is still 220.2MB. Free memory was 177.9MB in the beginning and 170.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:28:32,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 101.4MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.37ms. Allocated memory is still 130.0MB. Free memory was 90.7MB in the beginning and 71.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.69ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.97ms. Allocated memory is still 130.0MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 535.91ms. Allocated memory is still 130.0MB. Free memory was 67.6MB in the beginning and 51.2MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13030.96ms. Allocated memory was 130.0MB in the beginning and 220.2MB in the end (delta: 90.2MB). Free memory was 50.4MB in the beginning and 177.9MB in the end (delta: -127.5MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. * Witness Printer took 134.32ms. Allocated memory is still 220.2MB. Free memory was 177.9MB in the beginning and 170.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 186]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] - GenericResultAtLocation [Line: 485]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] - GenericResultAtLocation [Line: 585]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] - GenericResultAtLocation [Line: 594]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] * 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: 590]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2553 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2510 mSDsluCounter, 4521 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3379 mSDsCounter, 824 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3595 IncrementalHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 824 mSolverCounterUnsat, 1142 mSDtfsCounter, 3595 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 629 GetRequests, 422 SyntacticMatches, 7 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1917 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred in iteration=11, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 109 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1401 PreInvPairs, 1515 NumberOfFragments, 751 HoareAnnotationTreeSize, 1401 FomulaSimplifications, 971 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 4218 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 921 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 1696 SizeOfPredicates, 6 NumberOfNonLiveVariables, 656 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 208/246 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:28:32,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b0a3989-57ba-4610-ae2d-cf8d6b2de2ae/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE