./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/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 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:47,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:47,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:12:47,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:47,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:47,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:47,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:47,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:47,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:12:47,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:12:47,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:47,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:47,499 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:47,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:47,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:12:47,502 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:47,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:12:47,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:47,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:47,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:12:47,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:12:47,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:12:47,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:47,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:47,507 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:47,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:47,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:47,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:12:47,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:47,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:47,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:12:47,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:12:47,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:12:47,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:12:47,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:12:47,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:12:47,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:12:47,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:12:47,514 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:12:47,514 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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2023-11-12 02:12:47,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:47,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:47,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:47,869 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:47,870 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:47,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2023-11-12 02:12:50,943 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:51,174 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:51,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2023-11-12 02:12:51,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/data/7bd139a5d/7f1535c52f3e47429af3bb155701a28d/FLAG0fee4cb5b [2023-11-12 02:12:51,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/data/7bd139a5d/7f1535c52f3e47429af3bb155701a28d [2023-11-12 02:12:51,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:51,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:51,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:51,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:51,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:51,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710ff18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51, skipping insertion in model container [2023-11-12 02:12:51,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:51,558 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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2023-11-12 02:12:51,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:51,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:51,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-12 02:12:51,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2023-11-12 02:12:51,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [593] [2023-11-12 02:12:51,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [663] [2023-11-12 02:12:51,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [703] [2023-11-12 02:12:51,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] [2023-11-12 02:12:51,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [750] [2023-11-12 02:12:51,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [847] [2023-11-12 02:12:51,660 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_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2023-11-12 02:12:51,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:51,689 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:51,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51 WrapperNode [2023-11-12 02:12:51,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:51,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:51,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:51,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:51,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,757 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 179 [2023-11-12 02:12:51,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:51,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:51,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:51,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:51,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:51,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:51,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:51,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:51,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (1/1) ... [2023-11-12 02:12:51,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:51,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:51,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:12:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:12:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:12:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:12:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:12:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:12:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:12:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:12:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:12:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:12:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:12:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:12:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:12:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:52,022 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:52,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:52,330 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:52,339 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:52,340 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:12:52,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:52 BoogieIcfgContainer [2023-11-12 02:12:52,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:52,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:12:52,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:12:52,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:12:52,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:12:51" (1/3) ... [2023-11-12 02:12:52,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7394732c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:52, skipping insertion in model container [2023-11-12 02:12:52,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:51" (2/3) ... [2023-11-12 02:12:52,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7394732c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:52, skipping insertion in model container [2023-11-12 02:12:52,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:52" (3/3) ... [2023-11-12 02:12:52,354 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2023-11-12 02:12:52,373 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:12:52,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:12:52,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:12:52,442 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;@2e57df52, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:12:52,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:12:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:12:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:12:52,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:52,468 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 02:12:52,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:52,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash -479738916, now seen corresponding path program 1 times [2023-11-12 02:12:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849923772] [2023-11-12 02:12:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:12:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:52,722 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 02:12:52,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:52,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849923772] [2023-11-12 02:12:52,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849923772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:12:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405014970] [2023-11-12 02:12:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:52,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:12:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:12:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:12:52,782 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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 02:12:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:52,816 INFO L93 Difference]: Finished difference Result 151 states and 206 transitions. [2023-11-12 02:12:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:12:52,818 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 02:12:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:52,826 INFO L225 Difference]: With dead ends: 151 [2023-11-12 02:12:52,827 INFO L226 Difference]: Without dead ends: 71 [2023-11-12 02:12:52,830 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 02:12:52,834 INFO L413 NwaCegarLoop]: 100 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, 100 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 02:12:52,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-12 02:12:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-12 02:12:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:12:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2023-11-12 02:12:52,877 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 25 [2023-11-12 02:12:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:52,888 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2023-11-12 02:12:52,888 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 02:12:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2023-11-12 02:12:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:12:52,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:52,892 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 02:12:52,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:12:52,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:52,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1989794732, now seen corresponding path program 1 times [2023-11-12 02:12:52,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:52,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514848238] [2023-11-12 02:12:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:52,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:12:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,119 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 02:12:53,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:53,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514848238] [2023-11-12 02:12:53,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514848238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:53,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:53,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:53,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953565318] [2023-11-12 02:12:53,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:53,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:53,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:53,125 INFO L87 Difference]: Start difference. First operand 71 states and 91 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 02:12:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:53,142 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2023-11-12 02:12:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:53,143 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 02:12:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:53,144 INFO L225 Difference]: With dead ends: 103 [2023-11-12 02:12:53,145 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 02:12:53,146 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 02:12:53,147 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 135 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 02:12:53,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 02:12:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-12 02:12:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:12:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2023-11-12 02:12:53,160 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 26 [2023-11-12 02:12:53,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:53,160 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2023-11-12 02:12:53,160 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 02:12:53,161 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2023-11-12 02:12:53,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:12:53,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:53,162 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 02:12:53,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:12:53,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:53,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1216244594, now seen corresponding path program 1 times [2023-11-12 02:12:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:53,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678055914] [2023-11-12 02:12:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:53,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:12:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,294 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 02:12:53,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:53,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678055914] [2023-11-12 02:12:53,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678055914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:53,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:53,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:53,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664844477] [2023-11-12 02:12:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:53,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:53,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:53,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:53,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:53,297 INFO L87 Difference]: Start difference. First operand 62 states and 79 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 02:12:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:53,362 INFO L93 Difference]: Finished difference Result 169 states and 221 transitions. [2023-11-12 02:12:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:53,369 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 02:12:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:53,371 INFO L225 Difference]: With dead ends: 169 [2023-11-12 02:12:53,373 INFO L226 Difference]: Without dead ends: 115 [2023-11-12 02:12:53,374 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 02:12:53,377 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 58 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:53,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 163 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-12 02:12:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2023-11-12 02:12:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 87 states have (on average 1.367816091954023) internal successors, (119), 96 states have internal predecessors, (119), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:12:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 143 transitions. [2023-11-12 02:12:53,410 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 143 transitions. Word has length 30 [2023-11-12 02:12:53,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:53,411 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 143 transitions. [2023-11-12 02:12:53,411 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 02:12:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 143 transitions. [2023-11-12 02:12:53,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 02:12:53,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:53,414 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] [2023-11-12 02:12:53,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:12:53,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:53,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1180659967, now seen corresponding path program 1 times [2023-11-12 02:12:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991966192] [2023-11-12 02:12:53,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:12:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:12:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,539 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 02:12:53,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:53,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991966192] [2023-11-12 02:12:53,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991966192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:53,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:53,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775043629] [2023-11-12 02:12:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:53,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:53,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:53,549 INFO L87 Difference]: Start difference. First operand 110 states and 143 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:12:53,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:53,633 INFO L93 Difference]: Finished difference Result 289 states and 384 transitions. [2023-11-12 02:12:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:53,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-12 02:12:53,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:53,636 INFO L225 Difference]: With dead ends: 289 [2023-11-12 02:12:53,636 INFO L226 Difference]: Without dead ends: 187 [2023-11-12 02:12:53,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:53,640 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:53,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 126 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:12:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-12 02:12:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2023-11-12 02:12:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 144 states have (on average 1.3541666666666667) internal successors, (195), 155 states have internal predecessors, (195), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2023-11-12 02:12:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 239 transitions. [2023-11-12 02:12:53,685 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 239 transitions. Word has length 35 [2023-11-12 02:12:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:53,686 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 239 transitions. [2023-11-12 02:12:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:12:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 239 transitions. [2023-11-12 02:12:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:12:53,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:53,689 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] [2023-11-12 02:12:53,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:12:53,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:53,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:53,690 INFO L85 PathProgramCache]: Analyzing trace with hash 451554397, now seen corresponding path program 1 times [2023-11-12 02:12:53,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:53,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341232343] [2023-11-12 02:12:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:53,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:12:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:53,818 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 02:12:53,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:53,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341232343] [2023-11-12 02:12:53,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341232343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:53,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:53,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:12:53,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796386419] [2023-11-12 02:12:53,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:53,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:12:53,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:12:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:12:53,822 INFO L87 Difference]: Start difference. First operand 185 states and 239 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 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 02:12:53,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:53,962 INFO L93 Difference]: Finished difference Result 368 states and 480 transitions. [2023-11-12 02:12:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:12:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 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 34 [2023-11-12 02:12:53,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:53,966 INFO L225 Difference]: With dead ends: 368 [2023-11-12 02:12:53,969 INFO L226 Difference]: Without dead ends: 191 [2023-11-12 02:12:53,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:12:53,975 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 45 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:53,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 278 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:12:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-12 02:12:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2023-11-12 02:12:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 153 states have internal predecessors, (189), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2023-11-12 02:12:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 233 transitions. [2023-11-12 02:12:54,006 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 233 transitions. Word has length 34 [2023-11-12 02:12:54,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:54,007 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 233 transitions. [2023-11-12 02:12:54,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 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 02:12:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 233 transitions. [2023-11-12 02:12:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:12:54,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:54,010 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] [2023-11-12 02:12:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:12:54,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:54,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:54,011 INFO L85 PathProgramCache]: Analyzing trace with hash 967117538, now seen corresponding path program 1 times [2023-11-12 02:12:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:54,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266518184] [2023-11-12 02:12:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:54,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:12:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,106 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 02:12:54,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:54,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266518184] [2023-11-12 02:12:54,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266518184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:54,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:54,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:12:54,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271613083] [2023-11-12 02:12:54,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:54,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:12:54,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:54,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:12:54,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:12:54,110 INFO L87 Difference]: Start difference. First operand 183 states and 233 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 02:12:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:54,168 INFO L93 Difference]: Finished difference Result 386 states and 500 transitions. [2023-11-12 02:12:54,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:12:54,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 39 [2023-11-12 02:12:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:54,171 INFO L225 Difference]: With dead ends: 386 [2023-11-12 02:12:54,172 INFO L226 Difference]: Without dead ends: 211 [2023-11-12 02:12:54,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:12:54,174 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 13 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:54,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 339 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-12 02:12:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 189. [2023-11-12 02:12:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 159 states have internal predecessors, (195), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2023-11-12 02:12:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 239 transitions. [2023-11-12 02:12:54,244 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 239 transitions. Word has length 39 [2023-11-12 02:12:54,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:54,245 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 239 transitions. [2023-11-12 02:12:54,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 02:12:54,245 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 239 transitions. [2023-11-12 02:12:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:12:54,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:54,254 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] [2023-11-12 02:12:54,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:12:54,255 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:54,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash -621230364, now seen corresponding path program 1 times [2023-11-12 02:12:54,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:54,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633155035] [2023-11-12 02:12:54,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:54,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:12:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,399 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 02:12:54,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:54,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633155035] [2023-11-12 02:12:54,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633155035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:54,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:54,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:12:54,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118701226] [2023-11-12 02:12:54,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:54,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:12:54,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:54,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:12:54,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:12:54,403 INFO L87 Difference]: Start difference. First operand 189 states and 239 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 02:12:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:54,527 INFO L93 Difference]: Finished difference Result 408 states and 526 transitions. [2023-11-12 02:12:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:12:54,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 39 [2023-11-12 02:12:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:54,530 INFO L225 Difference]: With dead ends: 408 [2023-11-12 02:12:54,531 INFO L226 Difference]: Without dead ends: 227 [2023-11-12 02:12:54,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:12:54,533 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 100 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:54,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 363 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-12 02:12:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2023-11-12 02:12:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 152 states have (on average 1.3092105263157894) internal successors, (199), 163 states have internal predecessors, (199), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2023-11-12 02:12:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 243 transitions. [2023-11-12 02:12:54,552 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 243 transitions. Word has length 39 [2023-11-12 02:12:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:54,552 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 243 transitions. [2023-11-12 02:12:54,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 02:12:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 243 transitions. [2023-11-12 02:12:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:12:54,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:54,554 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] [2023-11-12 02:12:54,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:12:54,555 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:54,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1984793190, now seen corresponding path program 1 times [2023-11-12 02:12:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:54,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16970003] [2023-11-12 02:12:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:12:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,627 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 02:12:54,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:54,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16970003] [2023-11-12 02:12:54,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16970003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:54,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:54,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:54,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120317268] [2023-11-12 02:12:54,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:54,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:54,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:54,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:54,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:54,629 INFO L87 Difference]: Start difference. First operand 193 states and 243 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 02:12:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:54,664 INFO L93 Difference]: Finished difference Result 463 states and 588 transitions. [2023-11-12 02:12:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:54,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 39 [2023-11-12 02:12:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:54,667 INFO L225 Difference]: With dead ends: 463 [2023-11-12 02:12:54,667 INFO L226 Difference]: Without dead ends: 278 [2023-11-12 02:12:54,668 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 02:12:54,669 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:54,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 142 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-11-12 02:12:54,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2023-11-12 02:12:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 219 states have (on average 1.273972602739726) internal successors, (279), 232 states have internal predecessors, (279), 30 states have call successors, (30), 30 states have call predecessors, (30), 28 states have return successors, (34), 28 states have call predecessors, (34), 30 states have call successors, (34) [2023-11-12 02:12:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 343 transitions. [2023-11-12 02:12:54,696 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 343 transitions. Word has length 39 [2023-11-12 02:12:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:54,696 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 343 transitions. [2023-11-12 02:12:54,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 02:12:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 343 transitions. [2023-11-12 02:12:54,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:12:54,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:54,698 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] [2023-11-12 02:12:54,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:12:54,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:54,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:54,699 INFO L85 PathProgramCache]: Analyzing trace with hash 819581964, now seen corresponding path program 1 times [2023-11-12 02:12:54,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:54,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464214931] [2023-11-12 02:12:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:12:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:12:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:54,770 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 02:12:54,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464214931] [2023-11-12 02:12:54,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464214931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:54,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:54,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:12:54,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667784868] [2023-11-12 02:12:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:54,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:12:54,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:12:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:12:54,773 INFO L87 Difference]: Start difference. First operand 278 states and 343 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:12:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:54,959 INFO L93 Difference]: Finished difference Result 580 states and 745 transitions. [2023-11-12 02:12:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:12:54,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-12 02:12:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:54,971 INFO L225 Difference]: With dead ends: 580 [2023-11-12 02:12:54,971 INFO L226 Difference]: Without dead ends: 578 [2023-11-12 02:12:54,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:12:54,974 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 123 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:54,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 188 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:12:54,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-11-12 02:12:55,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 506. [2023-11-12 02:12:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 406 states have (on average 1.2980295566502462) internal successors, (527), 437 states have internal predecessors, (527), 53 states have call successors, (53), 41 states have call predecessors, (53), 46 states have return successors, (81), 50 states have call predecessors, (81), 53 states have call successors, (81) [2023-11-12 02:12:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 661 transitions. [2023-11-12 02:12:55,063 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 661 transitions. Word has length 43 [2023-11-12 02:12:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:55,063 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 661 transitions. [2023-11-12 02:12:55,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:12:55,064 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 661 transitions. [2023-11-12 02:12:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:12:55,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:55,069 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:12:55,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:12:55,069 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:55,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash -239993361, now seen corresponding path program 1 times [2023-11-12 02:12:55,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:55,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467196907] [2023-11-12 02:12:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:55,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:12:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:12:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:12:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:12:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:12:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,369 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:12:55,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:55,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467196907] [2023-11-12 02:12:55,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467196907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:12:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230387131] [2023-11-12 02:12:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:55,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:12:55,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:55,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:12:55,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:12:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:55,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:12:55,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:12:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-12 02:12:55,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:12:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:12:55,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230387131] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:12:55,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:12:55,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5] total 13 [2023-11-12 02:12:55,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747984823] [2023-11-12 02:12:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:55,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:12:55,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:12:55,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:12:55,918 INFO L87 Difference]: Start difference. First operand 506 states and 661 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:12:56,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:56,077 INFO L93 Difference]: Finished difference Result 1438 states and 1924 transitions. [2023-11-12 02:12:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:12:56,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2023-11-12 02:12:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:56,086 INFO L225 Difference]: With dead ends: 1438 [2023-11-12 02:12:56,086 INFO L226 Difference]: Without dead ends: 940 [2023-11-12 02:12:56,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:12:56,090 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 43 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:56,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 351 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-11-12 02:12:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 834. [2023-11-12 02:12:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 660 states have (on average 1.2636363636363637) internal successors, (834), 713 states have internal predecessors, (834), 91 states have call successors, (91), 71 states have call predecessors, (91), 82 states have return successors, (137), 86 states have call predecessors, (137), 91 states have call successors, (137) [2023-11-12 02:12:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1062 transitions. [2023-11-12 02:12:56,191 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1062 transitions. Word has length 74 [2023-11-12 02:12:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:56,192 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1062 transitions. [2023-11-12 02:12:56,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:12:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1062 transitions. [2023-11-12 02:12:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 02:12:56,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:56,200 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:12:56,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:12:56,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:12:56,408 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:56,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:56,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1936900565, now seen corresponding path program 1 times [2023-11-12 02:12:56,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:56,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034285629] [2023-11-12 02:12:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:56,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:56,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:56,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:56,516 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:12:56,517 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:12:56,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:12:56,522 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:56,526 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:12:56,585 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated [2023-11-12 02:12:56,591 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated [2023-11-12 02:12:56,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:12:56 BoogieIcfgContainer [2023-11-12 02:12:56,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:12:56,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:12:56,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:12:56,619 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:12:56,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:52" (3/4) ... [2023-11-12 02:12:56,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:12:56,647 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated [2023-11-12 02:12:56,651 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated [2023-11-12 02:12:56,717 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:12:56,717 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:12:56,718 INFO L158 Benchmark]: Toolchain (without parser) took 5498.60ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 116.4MB in the beginning and 165.2MB in the end (delta: -48.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,718 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:56,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.56ms. Allocated memory is still 163.6MB. Free memory was 115.6MB in the beginning and 96.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.54ms. Allocated memory is still 163.6MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,719 INFO L158 Benchmark]: Boogie Preprocessor took 46.84ms. Allocated memory is still 163.6MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,720 INFO L158 Benchmark]: RCFGBuilder took 538.00ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 76.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,720 INFO L158 Benchmark]: TraceAbstraction took 4271.12ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 76.5MB in the beginning and 171.5MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:56,720 INFO L158 Benchmark]: Witness Printer took 98.40ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 165.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:12:56,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.56ms. Allocated memory is still 163.6MB. Free memory was 115.6MB in the beginning and 96.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.54ms. Allocated memory is still 163.6MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.84ms. Allocated memory is still 163.6MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.00ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 76.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4271.12ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 76.5MB in the beginning and 171.5MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.40ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 165.2MB in the end (delta: 6.3MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [593] - GenericResultAtLocation [Line: 663]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [663] - GenericResultAtLocation [Line: 703]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [703] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] - GenericResultAtLocation [Line: 750]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [750] - GenericResultAtLocation [Line: 847]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [847] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret42 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L665] int methAndRunningLastTime ; [L751] int cleanupTimeShifts = 4; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L733] int retValue_acc ; [L736] retValue_acc = 1 [L737] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L818] CALL __utac_acc__Specification2_spec__1() [L670] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] RET __utac_acc__Specification2_spec__1() [L819] CALL test() [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L615] tmp = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L619] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L629] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] COND FALSE !(\read(methaneLevelCritical)) [L882] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L652] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L468] CALL, EXPR isHighWaterLevel() [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L566] CALL, EXPR isHighWaterSensorDry() [L929] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L932] COND FALSE !(waterLevel < 2) [L936] retValue_acc = 0 [L937] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L566] RET, EXPR isHighWaterSensorDry() [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L468] RET, EXPR isHighWaterLevel() [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L472] CALL activatePump() [L491] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] RET activatePump() [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification2_spec__2() [L675] int tmp ; [L676] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L684] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L684] RET, EXPR isPumpRunning() [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L687] COND FALSE !(\read(methAndRunningLastTime)) [L692] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L449] RET __utac_acc__Specification2_spec__2() [L652] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-2, waterLevel=2] [L652] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L434] COND TRUE \read(pumpRunning) [L436] CALL lowerWaterLevel() [L855] COND TRUE waterLevel > 0 [L856] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L436] RET lowerWaterLevel() [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification2_spec__2() [L675] int tmp ; [L676] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L684] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L684] RET, EXPR isPumpRunning() [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L687] COND TRUE \read(methAndRunningLastTime) [L689] CALL __automaton_fail() [L746] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 502 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 488 mSDsluCounter, 2185 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1345 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 840 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=834occurred in iteration=10, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 249 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 536 NumberOfCodeBlocks, 536 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 2 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 65/69 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:12:56,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6863c0ee-b9c2-4afe-aac6-6b36881a5a2b/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE