./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ --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 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:43:02,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:43:02,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:43:02,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:43:02,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:43:02,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:43:02,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:43:02,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:43:02,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:43:02,229 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:43:02,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:43:02,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:43:02,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:43:02,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:43:02,234 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:43:02,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:43:02,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:43:02,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:43:02,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:43:02,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:43:02,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:43:02,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:43:02,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:43:02,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:43:02,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:43:02,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:43:02,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:43:02,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:43:02,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:43:02,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:43:02,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:43:02,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:02,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:43:02,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:43:02,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:43:02,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:43:02,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:43:02,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:43:02,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:43:02,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:43:02,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:43:02,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:43:02,248 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_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 [2023-11-23 22:43:02,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:43:02,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:43:02,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:43:02,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:43:02,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:43:02,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-23 22:43:05,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:43:05,970 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:43:05,975 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-23 22:43:05,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/data/1b99286fa/97e87797ec6b4f9e86dca6c4a54cb605/FLAGbd17a6812 [2023-11-23 22:43:06,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/data/1b99286fa/97e87797ec6b4f9e86dca6c4a54cb605 [2023-11-23 22:43:06,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:43:06,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:43:06,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:06,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:43:06,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:43:06,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd87c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06, skipping insertion in model container [2023-11-23 22:43:06,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:43:06,456 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_f037c3d6-9210-40b5-addf-3e3d7078fb20/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-23 22:43:06,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:06,502 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:43:06,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-23 22:43:06,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-23 22:43:06,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2023-11-23 22:43:06,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2023-11-23 22:43:06,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] [2023-11-23 22:43:06,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] [2023-11-23 22:43:06,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] [2023-11-23 22:43:06,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2023-11-23 22:43:06,579 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_f037c3d6-9210-40b5-addf-3e3d7078fb20/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-23 22:43:06,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:06,654 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:43:06,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06 WrapperNode [2023-11-23 22:43:06,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:06,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:06,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:43:06,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:43:06,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,731 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 227 [2023-11-23 22:43:06,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:06,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:43:06,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:43:06,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:43:06,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,747 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,761 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:43:06,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:43:06,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:43:06,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:43:06,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:43:06,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (1/1) ... [2023-11-23 22:43:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:06,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:43:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:43:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 22:43:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 22:43:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 22:43:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 22:43:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 22:43:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 22:43:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 22:43:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 22:43:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:43:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:43:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 22:43:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 22:43:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:43:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 22:43:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 22:43:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:43:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:43:07,002 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:43:07,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:43:07,361 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:43:07,511 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:43:07,512 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:43:07,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:07 BoogieIcfgContainer [2023-11-23 22:43:07,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:43:07,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:43:07,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:43:07,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:43:07,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:43:06" (1/3) ... [2023-11-23 22:43:07,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0d2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:07, skipping insertion in model container [2023-11-23 22:43:07,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:06" (2/3) ... [2023-11-23 22:43:07,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0d2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:07, skipping insertion in model container [2023-11-23 22:43:07,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:07" (3/3) ... [2023-11-23 22:43:07,523 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2023-11-23 22:43:07,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:43:07,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:43:07,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:43:07,614 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;@5c8d029f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:43:07,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:43:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:43:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:43:07,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:07,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:07,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1520007880, now seen corresponding path program 1 times [2023-11-23 22:43:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142139192] [2023-11-23 22:43:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:07,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:43:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:07,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142139192] [2023-11-23 22:43:07,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142139192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:07,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:07,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:07,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245790229] [2023-11-23 22:43:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:07,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:43:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:07,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:43:07,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:43:07,906 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-23 22:43:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:08,008 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2023-11-23 22:43:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:43:08,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2023-11-23 22:43:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:08,028 INFO L225 Difference]: With dead ends: 142 [2023-11-23 22:43:08,029 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 22:43:08,034 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 [2023-11-23 22:43:08,038 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:08,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:43:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 22:43:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-23 22:43:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:43:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2023-11-23 22:43:08,092 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2023-11-23 22:43:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:08,093 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2023-11-23 22:43:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-23 22:43:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2023-11-23 22:43:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:43:08,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:08,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:08,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:43:08,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:08,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2068637019, now seen corresponding path program 1 times [2023-11-23 22:43:08,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145078374] [2023-11-23 22:43:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:43:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:08,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145078374] [2023-11-23 22:43:08,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145078374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:08,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:08,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:43:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215848740] [2023-11-23 22:43:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:08,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:08,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:08,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:08,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:08,253 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-23 22:43:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:08,293 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-11-23 22:43:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:08,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-11-23 22:43:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:08,296 INFO L225 Difference]: With dead ends: 107 [2023-11-23 22:43:08,296 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 22:43:08,297 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 [2023-11-23 22:43:08,299 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 11 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:08,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:43:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 22:43:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-23 22:43:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 50 states have internal predecessors, (63), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:43:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-23 22:43:08,310 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2023-11-23 22:43:08,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:08,311 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-23 22:43:08,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-23 22:43:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-11-23 22:43:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 22:43:08,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:08,313 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] [2023-11-23 22:43:08,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:43:08,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:08,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1950639704, now seen corresponding path program 1 times [2023-11-23 22:43:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2846081] [2023-11-23 22:43:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:43:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:08,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2846081] [2023-11-23 22:43:08,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2846081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:08,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:08,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:43:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360768431] [2023-11-23 22:43:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:08,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:43:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:43:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:43:08,449 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-23 22:43:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:08,549 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2023-11-23 22:43:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:43:08,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-11-23 22:43:08,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:08,551 INFO L225 Difference]: With dead ends: 116 [2023-11-23 22:43:08,551 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 22:43:08,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:43:08,554 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 80 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:08,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 100 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:43:08,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 22:43:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-23 22:43:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:43:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-11-23 22:43:08,565 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2023-11-23 22:43:08,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:08,566 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-11-23 22:43:08,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-23 22:43:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-11-23 22:43:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:43:08,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:08,568 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] [2023-11-23 22:43:08,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:43:08,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:08,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1311664536, now seen corresponding path program 1 times [2023-11-23 22:43:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176924488] [2023-11-23 22:43:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:43:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176924488] [2023-11-23 22:43:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176924488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:43:08,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270251419] [2023-11-23 22:43:08,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:08,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:08,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:08,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:08,720 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:43:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:08,775 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2023-11-23 22:43:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 26 [2023-11-23 22:43:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:08,778 INFO L225 Difference]: With dead ends: 156 [2023-11-23 22:43:08,779 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 22:43:08,780 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 [2023-11-23 22:43:08,781 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:08,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 123 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:43:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 22:43:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-11-23 22:43:08,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 79 states have internal predecessors, (99), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-23 22:43:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2023-11-23 22:43:08,803 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2023-11-23 22:43:08,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:08,804 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2023-11-23 22:43:08,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:43:08,804 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2023-11-23 22:43:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 22:43:08,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:08,806 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] [2023-11-23 22:43:08,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:43:08,807 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:08,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1735456463, now seen corresponding path program 1 times [2023-11-23 22:43:08,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762820075] [2023-11-23 22:43:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:43:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 22:43:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:09,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762820075] [2023-11-23 22:43:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762820075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:09,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:09,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:43:09,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270400397] [2023-11-23 22:43:09,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:09,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:43:09,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:09,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:43:09,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:43:09,047 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:43:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:09,314 INFO L93 Difference]: Finished difference Result 291 states and 401 transitions. [2023-11-23 22:43:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:43:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-23 22:43:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:09,321 INFO L225 Difference]: With dead ends: 291 [2023-11-23 22:43:09,322 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 22:43:09,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:43:09,330 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:09,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 178 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:43:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 22:43:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 192. [2023-11-23 22:43:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 152 states have internal predecessors, (191), 26 states have call successors, (26), 22 states have call predecessors, (26), 24 states have return successors, (40), 26 states have call predecessors, (40), 26 states have call successors, (40) [2023-11-23 22:43:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2023-11-23 22:43:09,395 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 257 transitions. Word has length 36 [2023-11-23 22:43:09,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:09,396 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 257 transitions. [2023-11-23 22:43:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:43:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 257 transitions. [2023-11-23 22:43:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 22:43:09,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:09,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:09,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:43:09,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:09,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1821783627, now seen corresponding path program 1 times [2023-11-23 22:43:09,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:09,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313860243] [2023-11-23 22:43:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:09,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:43:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 22:43:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:09,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313860243] [2023-11-23 22:43:09,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313860243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:09,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:09,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:43:09,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26212822] [2023-11-23 22:43:09,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:09,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:43:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:43:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:43:09,553 INFO L87 Difference]: Start difference. First operand 192 states and 257 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:09,996 INFO L93 Difference]: Finished difference Result 491 states and 702 transitions. [2023-11-23 22:43:09,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 22:43:09,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-23 22:43:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:10,004 INFO L225 Difference]: With dead ends: 491 [2023-11-23 22:43:10,004 INFO L226 Difference]: Without dead ends: 376 [2023-11-23 22:43:10,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:43:10,006 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 248 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:10,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 161 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:43:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-23 22:43:10,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 338. [2023-11-23 22:43:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 248 states have (on average 1.3225806451612903) internal successors, (328), 270 states have internal predecessors, (328), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-23 22:43:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 465 transitions. [2023-11-23 22:43:10,064 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 465 transitions. Word has length 40 [2023-11-23 22:43:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:10,064 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 465 transitions. [2023-11-23 22:43:10,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 465 transitions. [2023-11-23 22:43:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 22:43:10,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:10,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:10,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:43:10,067 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:10,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1655535219, now seen corresponding path program 1 times [2023-11-23 22:43:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695625629] [2023-11-23 22:43:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:43:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 22:43:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:10,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695625629] [2023-11-23 22:43:10,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695625629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:10,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:43:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770598134] [2023-11-23 22:43:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:10,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:43:10,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:43:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:43:10,155 INFO L87 Difference]: Start difference. First operand 338 states and 465 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:10,543 INFO L93 Difference]: Finished difference Result 629 states and 877 transitions. [2023-11-23 22:43:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:43:10,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-23 22:43:10,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:10,547 INFO L225 Difference]: With dead ends: 629 [2023-11-23 22:43:10,547 INFO L226 Difference]: Without dead ends: 364 [2023-11-23 22:43:10,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:43:10,550 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 119 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:10,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 184 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:43:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-23 22:43:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 338. [2023-11-23 22:43:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 248 states have (on average 1.3185483870967742) internal successors, (327), 270 states have internal predecessors, (327), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-23 22:43:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 464 transitions. [2023-11-23 22:43:10,592 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 464 transitions. Word has length 40 [2023-11-23 22:43:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:10,593 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 464 transitions. [2023-11-23 22:43:10,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 464 transitions. [2023-11-23 22:43:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 22:43:10,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:10,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:10,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:43:10,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:10,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash -338609487, now seen corresponding path program 1 times [2023-11-23 22:43:10,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108928843] [2023-11-23 22:43:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:43:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 22:43:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108928843] [2023-11-23 22:43:10,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108928843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:10,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:10,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:43:10,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130325718] [2023-11-23 22:43:10,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:10,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:43:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:10,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:43:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:43:10,689 INFO L87 Difference]: Start difference. First operand 338 states and 464 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:11,001 INFO L93 Difference]: Finished difference Result 717 states and 1015 transitions. [2023-11-23 22:43:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:43:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-23 22:43:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:11,006 INFO L225 Difference]: With dead ends: 717 [2023-11-23 22:43:11,007 INFO L226 Difference]: Without dead ends: 381 [2023-11-23 22:43:11,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:43:11,011 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 114 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:11,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 185 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:43:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-23 22:43:11,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 339. [2023-11-23 22:43:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 251 states have (on average 1.3107569721115537) internal successors, (329), 272 states have internal predecessors, (329), 45 states have call successors, (45), 31 states have call predecessors, (45), 42 states have return successors, (90), 47 states have call predecessors, (90), 45 states have call successors, (90) [2023-11-23 22:43:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 464 transitions. [2023-11-23 22:43:11,061 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 464 transitions. Word has length 40 [2023-11-23 22:43:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:11,062 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 464 transitions. [2023-11-23 22:43:11,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:11,062 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 464 transitions. [2023-11-23 22:43:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 22:43:11,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:11,065 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:43:11,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:43:11,065 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:11,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash -914265781, now seen corresponding path program 1 times [2023-11-23 22:43:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:11,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045176804] [2023-11-23 22:43:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:43:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:43:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:43:11,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:11,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045176804] [2023-11-23 22:43:11,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045176804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:11,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:11,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:43:11,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104268764] [2023-11-23 22:43:11,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:11,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:43:11,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:11,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:43:11,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:43:11,253 INFO L87 Difference]: Start difference. First operand 339 states and 464 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:11,692 INFO L93 Difference]: Finished difference Result 664 states and 907 transitions. [2023-11-23 22:43:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:43:11,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-23 22:43:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:11,696 INFO L225 Difference]: With dead ends: 664 [2023-11-23 22:43:11,696 INFO L226 Difference]: Without dead ends: 327 [2023-11-23 22:43:11,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:43:11,699 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 187 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:11,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 305 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:43:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-23 22:43:11,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2023-11-23 22:43:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 239 states have (on average 1.2761506276150627) internal successors, (305), 258 states have internal predecessors, (305), 41 states have call successors, (41), 31 states have call predecessors, (41), 40 states have return successors, (60), 42 states have call predecessors, (60), 41 states have call successors, (60) [2023-11-23 22:43:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 406 transitions. [2023-11-23 22:43:11,731 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 406 transitions. Word has length 43 [2023-11-23 22:43:11,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:11,732 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 406 transitions. [2023-11-23 22:43:11,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 406 transitions. [2023-11-23 22:43:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 22:43:11,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:11,734 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:43:11,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:43:11,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:11,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,735 INFO L85 PathProgramCache]: Analyzing trace with hash -896017649, now seen corresponding path program 1 times [2023-11-23 22:43:11,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:11,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282889146] [2023-11-23 22:43:11,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:43:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:43:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:43:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282889146] [2023-11-23 22:43:11,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282889146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:43:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103584684] [2023-11-23 22:43:11,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:11,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:11,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:11,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:43:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:43:12,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103584684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:12,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:43:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-23 22:43:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762210803] [2023-11-23 22:43:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:12,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:43:12,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:12,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:43:12,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:43:12,201 INFO L87 Difference]: Start difference. First operand 321 states and 406 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:12,355 INFO L93 Difference]: Finished difference Result 945 states and 1216 transitions. [2023-11-23 22:43:12,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:43:12,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-23 22:43:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:12,361 INFO L225 Difference]: With dead ends: 945 [2023-11-23 22:43:12,361 INFO L226 Difference]: Without dead ends: 626 [2023-11-23 22:43:12,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:43:12,364 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 48 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:12,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 281 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:43:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-11-23 22:43:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 624. [2023-11-23 22:43:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 464 states have (on average 1.2586206896551724) internal successors, (584), 498 states have internal predecessors, (584), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (123), 82 states have call predecessors, (123), 81 states have call successors, (123) [2023-11-23 22:43:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 788 transitions. [2023-11-23 22:43:12,449 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 788 transitions. Word has length 43 [2023-11-23 22:43:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:12,450 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 788 transitions. [2023-11-23 22:43:12,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:43:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 788 transitions. [2023-11-23 22:43:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 22:43:12,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:12,452 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:12,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:12,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:43:12,668 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:12,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1798882645, now seen corresponding path program 1 times [2023-11-23 22:43:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869666271] [2023-11-23 22:43:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 22:43:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 22:43:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 22:43:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:43:12,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:12,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869666271] [2023-11-23 22:43:12,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869666271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:12,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:12,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 22:43:12,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045347263] [2023-11-23 22:43:12,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:12,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 22:43:12,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:12,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 22:43:12,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:43:12,885 INFO L87 Difference]: Start difference. First operand 624 states and 788 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:43:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:13,945 INFO L93 Difference]: Finished difference Result 1241 states and 1581 transitions. [2023-11-23 22:43:13,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 22:43:13,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-11-23 22:43:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:13,953 INFO L225 Difference]: With dead ends: 1241 [2023-11-23 22:43:13,953 INFO L226 Difference]: Without dead ends: 619 [2023-11-23 22:43:13,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=254, Invalid=936, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 22:43:13,957 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 286 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:13,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 201 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:43:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-11-23 22:43:14,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 608. [2023-11-23 22:43:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 448 states have (on average 1.2142857142857142) internal successors, (544), 482 states have internal predecessors, (544), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (117), 82 states have call predecessors, (117), 81 states have call successors, (117) [2023-11-23 22:43:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 742 transitions. [2023-11-23 22:43:14,031 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 742 transitions. Word has length 47 [2023-11-23 22:43:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:14,032 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 742 transitions. [2023-11-23 22:43:14,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:43:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 742 transitions. [2023-11-23 22:43:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 22:43:14,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:14,036 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:43:14,036 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:14,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1755578374, now seen corresponding path program 1 times [2023-11-23 22:43:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:14,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886611079] [2023-11-23 22:43:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:43:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:43:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:43:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:43:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 22:43:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 22:43:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:43:14,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:14,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886611079] [2023-11-23 22:43:14,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886611079] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:43:14,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808768460] [2023-11-23 22:43:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:14,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:14,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:14,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:14,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:43:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 22:43:14,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:43:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 22:43:14,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808768460] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:43:14,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:43:14,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 8] total 19 [2023-11-23 22:43:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367073781] [2023-11-23 22:43:14,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:43:14,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 22:43:14,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:14,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 22:43:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:43:14,850 INFO L87 Difference]: Start difference. First operand 608 states and 742 transitions. Second operand has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-23 22:43:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:16,294 INFO L93 Difference]: Finished difference Result 1598 states and 2061 transitions. [2023-11-23 22:43:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-23 22:43:16,295 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) Word has length 68 [2023-11-23 22:43:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:16,296 INFO L225 Difference]: With dead ends: 1598 [2023-11-23 22:43:16,296 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:43:16,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 145 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=989, Invalid=3171, Unknown=0, NotChecked=0, Total=4160 [2023-11-23 22:43:16,305 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 636 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:16,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 420 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:43:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:43:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:43:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:43:16,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-11-23 22:43:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:16,307 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:16,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-23 22:43:16,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:43:16,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:43:16,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:43:16,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:16,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:16,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:43:19,146 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 641 647) no Hoare annotation was computed. [2023-11-23 22:43:19,147 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 641 647) the Hoare annotation is: true [2023-11-23 22:43:19,147 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 450 461) the Hoare annotation is: (let ((.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~pumpRunning~0 1)) (.cse0 (< 2 ~waterLevel~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (< |old(~methaneLevelCritical~0)| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse4) (or .cse0 .cse1 .cse6 .cse7 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse4))) [2023-11-23 22:43:19,147 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 450 461) no Hoare annotation was computed. [2023-11-23 22:43:19,147 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 450 461) no Hoare annotation was computed. [2023-11-23 22:43:19,147 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-11-23 22:43:19,147 INFO L899 garLoopResultBuilder]: For program point L921(lines 896 925) no Hoare annotation was computed. [2023-11-23 22:43:19,148 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-11-23 22:43:19,148 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-11-23 22:43:19,148 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-11-23 22:43:19,148 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-11-23 22:43:19,148 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-11-23 22:43:19,148 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-11-23 22:43:19,149 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-11-23 22:43:19,149 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 596) no Hoare annotation was computed. [2023-11-23 22:43:19,149 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2023-11-23 22:43:19,149 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse2 .cse3) (or .cse4 .cse6 .cse5 .cse1 .cse2) (or .cse0 .cse6 .cse1 .cse2))) [2023-11-23 22:43:19,149 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2023-11-23 22:43:19,149 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 595) no Hoare annotation was computed. [2023-11-23 22:43:19,150 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 567 599) no Hoare annotation was computed. [2023-11-23 22:43:19,151 INFO L895 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse11 (<= ~waterLevel~0 1)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11 .cse12)) (.cse2 (and .cse7 .cse11 .cse12)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse10 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse9 (and (<= 1 ~pumpRunning~0) .cse8)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (and .cse7 .cse8) .cse9 .cse4 .cse5 .cse10) (or .cse0 .cse2 .cse3 .cse4 .cse5 .cse10) (or (and .cse7 .cse11 .cse8) .cse6 .cse1 .cse9 .cse4 .cse5)))) [2023-11-23 22:43:19,152 INFO L899 garLoopResultBuilder]: For program point L574-1(line 574) no Hoare annotation was computed. [2023-11-23 22:43:19,152 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3 .cse4))) [2023-11-23 22:43:19,152 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 675 699) no Hoare annotation was computed. [2023-11-23 22:43:19,152 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 628 634) no Hoare annotation was computed. [2023-11-23 22:43:19,152 INFO L899 garLoopResultBuilder]: For program point L818(lines 818 822) no Hoare annotation was computed. [2023-11-23 22:43:19,153 INFO L899 garLoopResultBuilder]: For program point L818-2(lines 818 822) no Hoare annotation was computed. [2023-11-23 22:43:19,153 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2023-11-23 22:43:19,153 INFO L899 garLoopResultBuilder]: For program point L430-2(lines 426 437) no Hoare annotation was computed. [2023-11-23 22:43:19,153 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 640) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse8)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3 .cse4) (or .cse7 .cse0 .cse1 .cse2 .cse3)))) [2023-11-23 22:43:19,154 INFO L899 garLoopResultBuilder]: For program point L621-1(lines 620 639) no Hoare annotation was computed. [2023-11-23 22:43:19,154 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 691) no Hoare annotation was computed. [2023-11-23 22:43:19,154 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 617 640) no Hoare annotation was computed. [2023-11-23 22:43:19,154 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 605) no Hoare annotation was computed. [2023-11-23 22:43:19,154 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 696) no Hoare annotation was computed. [2023-11-23 22:43:19,154 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 462 470) the Hoare annotation is: true [2023-11-23 22:43:19,155 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 462 470) no Hoare annotation was computed. [2023-11-23 22:43:19,155 INFO L895 garLoopResultBuilder]: At program point L886(lines 839 887) the Hoare annotation is: false [2023-11-23 22:43:19,155 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-11-23 22:43:19,155 INFO L899 garLoopResultBuilder]: For program point L977-2(lines 977 984) no Hoare annotation was computed. [2023-11-23 22:43:19,155 INFO L899 garLoopResultBuilder]: For program point L841(lines 840 885) no Hoare annotation was computed. [2023-11-23 22:43:19,155 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 881) no Hoare annotation was computed. [2023-11-23 22:43:19,156 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-11-23 22:43:19,156 INFO L895 garLoopResultBuilder]: At program point L883(lines 840 885) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 (<= ~waterLevel~0 1) .cse2 .cse3 .cse5))) [2023-11-23 22:43:19,156 INFO L899 garLoopResultBuilder]: For program point L850(lines 850 856) no Hoare annotation was computed. [2023-11-23 22:43:19,156 INFO L899 garLoopResultBuilder]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2023-11-23 22:43:19,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:43:19,157 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 880) no Hoare annotation was computed. [2023-11-23 22:43:19,157 INFO L895 garLoopResultBuilder]: At program point L876-2(lines 870 881) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-11-23 22:43:19,157 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:43:19,157 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2023-11-23 22:43:19,157 INFO L899 garLoopResultBuilder]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2023-11-23 22:43:19,157 INFO L899 garLoopResultBuilder]: For program point L889(lines 830 893) no Hoare annotation was computed. [2023-11-23 22:43:19,158 INFO L895 garLoopResultBuilder]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 (<= ~waterLevel~0 1) .cse2 .cse3 .cse5))) [2023-11-23 22:43:19,158 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 803) no Hoare annotation was computed. [2023-11-23 22:43:19,158 INFO L899 garLoopResultBuilder]: For program point L799-2(lines 799 803) no Hoare annotation was computed. [2023-11-23 22:43:19,158 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0)) (.cse6 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse7) (or .cse4 .cse5 .cse1 .cse3 .cse6))) [2023-11-23 22:43:19,159 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 665) no Hoare annotation was computed. [2023-11-23 22:43:19,159 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 670) no Hoare annotation was computed. [2023-11-23 22:43:19,159 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 649 673) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (< 1 ~waterLevel~0)) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse4 (= 0 ~systemActive~0)) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse7 .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse8) (or .cse5 .cse6 .cse7 .cse4 .cse8))) [2023-11-23 22:43:19,159 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 503 516) no Hoare annotation was computed. [2023-11-23 22:43:19,159 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse4 .cse7) (or .cse0 .cse1 .cse3 .cse4 .cse7) (or .cse5 .cse6 .cse2 .cse4))) [2023-11-23 22:43:19,160 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 649 673) no Hoare annotation was computed. [2023-11-23 22:43:19,160 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed. [2023-11-23 22:43:19,160 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 649 673) no Hoare annotation was computed. [2023-11-23 22:43:19,160 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2023-11-23 22:43:19,160 INFO L899 garLoopResultBuilder]: For program point L716-2(lines 709 725) no Hoare annotation was computed. [2023-11-23 22:43:19,161 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not .cse10)) (.cse6 (and .cse9 (<= 1 |processEnvironment__wrappee__highWaterSensor_~tmp~4#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse3 (= 0 ~systemActive~0)) (.cse8 (< ~methaneLevelCritical~0 1)) (.cse7 (and .cse9 (<= ~waterLevel~0 1) .cse10))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse3 .cse7) (or .cse0 .cse2 .cse3 .cse8) (or .cse4 .cse5 .cse6 .cse3 .cse8 .cse7)))) [2023-11-23 22:43:19,161 INFO L899 garLoopResultBuilder]: For program point L739-1(line 739) no Hoare annotation was computed. [2023-11-23 22:43:19,161 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 438 449) no Hoare annotation was computed. [2023-11-23 22:43:19,161 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 438 449) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse6 .cse5 .cse1 .cse2) (or .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-11-23 22:43:19,161 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 438 449) no Hoare annotation was computed. [2023-11-23 22:43:19,164 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:19,166 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:43:19,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:43:19 BoogieIcfgContainer [2023-11-23 22:43:19,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:43:19,181 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:43:19,181 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:43:19,181 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:43:19,182 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:07" (3/4) ... [2023-11-23 22:43:19,184 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:43:19,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 22:43:19,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 22:43:19,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 22:43:19,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 22:43:19,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 22:43:19,189 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:43:19,189 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 22:43:19,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-23 22:43:19,198 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 22:43:19,199 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 22:43:19,199 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:43:19,200 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:43:19,320 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:43:19,321 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:43:19,321 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:43:19,322 INFO L158 Benchmark]: Toolchain (without parser) took 13310.27ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 112.3MB in the beginning and 183.2MB in the end (delta: -70.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,322 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:43:19,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.00ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 92.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.22ms. Allocated memory is still 161.5MB. Free memory was 92.8MB in the beginning and 90.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,323 INFO L158 Benchmark]: Boogie Preprocessor took 47.44ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,324 INFO L158 Benchmark]: RCFGBuilder took 732.26ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 87.7MB in the beginning and 164.6MB in the end (delta: -76.9MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,324 INFO L158 Benchmark]: TraceAbstraction took 11664.58ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 164.6MB in the beginning and 190.6MB in the end (delta: -26.0MB). Peak memory consumption was 141.2MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,325 INFO L158 Benchmark]: Witness Printer took 140.20ms. Allocated memory is still 234.9MB. Free memory was 190.6MB in the beginning and 183.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:43:19,327 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.00ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 92.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.22ms. Allocated memory is still 161.5MB. Free memory was 92.8MB in the beginning and 90.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.44ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.26ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 87.7MB in the beginning and 164.6MB in the end (delta: -76.9MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11664.58ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 164.6MB in the beginning and 190.6MB in the end (delta: -26.0MB). Peak memory consumption was 141.2MB. Max. memory is 16.1GB. * Witness Printer took 140.20ms. Allocated memory is still 234.9MB. Free memory was 190.6MB in the beginning and 183.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 564]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] - GenericResultAtLocation [Line: 828]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 605]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1923 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1895 mSDsluCounter, 2342 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1640 mSDsCounter, 653 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3384 IncrementalHoareTripleChecker+Invalid, 4037 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 653 mSolverCounterUnsat, 702 mSDtfsCounter, 3384 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 271 SyntacticMatches, 6 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=10, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 131 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1050 PreInvPairs, 1183 NumberOfFragments, 1114 HoareAnnotationTreeSize, 1050 FomulaSimplifications, 1404 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FomulaSimplificationsInter, 4681 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 550 NumberOfCodeBlocks, 550 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 1303 SizeOfPredicates, 5 NumberOfNonLiveVariables, 490 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 56/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) || ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || ((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-23 22:43:19,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f037c3d6-9210-40b5-addf-3e3d7078fb20/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE