./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu --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 d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:51:06,947 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:51:07,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:51:07,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:51:07,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:51:07,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:51:07,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:51:07,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:51:07,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:51:07,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:51:07,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:51:07,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:51:07,048 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:51:07,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:51:07,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:51:07,050 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:51:07,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:51:07,051 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:51:07,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:51:07,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:51:07,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:51:07,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:51:07,054 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:51:07,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:51:07,055 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:51:07,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:51:07,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:51:07,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:51:07,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:51:07,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:51:07,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:51:07,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:51:07,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:51:07,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:51:07,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:51:07,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:51:07,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:51:07,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:51:07,059 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:51:07,059 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_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a
[2023-11-19 07:51:07,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:51:07,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:51:07,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:51:07,407 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:51:07,408 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:51:07,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c
[2023-11-19 07:51:10,603 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:51:10,878 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:51:10,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c
[2023-11-19 07:51:10,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/data/88b3c41c0/488762976b07434dbaeb50d08fe7379a/FLAGd5129a728
[2023-11-19 07:51:10,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/data/88b3c41c0/488762976b07434dbaeb50d08fe7379a
[2023-11-19 07:51:10,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:51:10,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:51:10,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:51:10,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:51:10,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:51:10,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:10" (1/1) ...
[2023-11-19 07:51:10,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e213737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:10, skipping insertion in model container
[2023-11-19 07:51:10,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:10" (1/1) ...
[2023-11-19 07:51:10,976 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:51:11,299 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_c6c5d082-86c7-4bce-95ce-c319182e01a8/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c[18661,18674]
[2023-11-19 07:51:11,303 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:51:11,315 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:51:11,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49]
[2023-11-19 07:51:11,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78]
[2023-11-19 07:51:11,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116]
[2023-11-19 07:51:11,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482]
[2023-11-19 07:51:11,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551]
[2023-11-19 07:51:11,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773]
[2023-11-19 07:51:11,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869]
[2023-11-19 07:51:11,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973]
[2023-11-19 07:51:11,391 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_c6c5d082-86c7-4bce-95ce-c319182e01a8/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c[18661,18674]
[2023-11-19 07:51:11,392 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:51:11,412 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:51:11,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11 WrapperNode
[2023-11-19 07:51:11,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:51:11,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:51:11,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:51:11,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:51:11,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,472 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 215
[2023-11-19 07:51:11,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:51:11,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:51:11,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:51:11,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:51:11,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:51:11,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:51:11,505 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:51:11,505 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:51:11,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (1/1) ...
[2023-11-19 07:51:11,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:51:11,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:51:11,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:51:11,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:51:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:51:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2023-11-19 07:51:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2023-11-19 07:51:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2023-11-19 07:51:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2023-11-19 07:51:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2023-11-19 07:51:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2023-11-19 07:51:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2023-11-19 07:51:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2023-11-19 07:51:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2023-11-19 07:51:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2023-11-19 07:51:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2023-11-19 07:51:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2023-11-19 07:51:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:51:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2023-11-19 07:51:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2023-11-19 07:51:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:51:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:51:11,705 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:51:11,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:51:12,097 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:51:12,106 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:51:12,106 INFO L302 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 07:51:12,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:12 BoogieIcfgContainer
[2023-11-19 07:51:12,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:51:12,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:51:12,115 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:51:12,118 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:51:12,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:51:10" (1/3) ...
[2023-11-19 07:51:12,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b76b063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:12, skipping insertion in model container
[2023-11-19 07:51:12,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:11" (2/3) ...
[2023-11-19 07:51:12,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b76b063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:12, skipping insertion in model container
[2023-11-19 07:51:12,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:12" (3/3) ...
[2023-11-19 07:51:12,122 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c
[2023-11-19 07:51:12,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:51:12,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:51:12,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:51:12,253 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;@589d4d1e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:51:12,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:51:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 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)
[2023-11-19 07:51:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2023-11-19 07:51:12,269 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:12,269 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]
[2023-11-19 07:51:12,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:12,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1849570436, now seen corresponding path program 1 times
[2023-11-19 07:51:12,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:12,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955028765]
[2023-11-19 07:51:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:12,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-19 07:51:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:12,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:12,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955028765]
[2023-11-19 07:51:12,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955028765] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:12,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:12,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:51:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341892926]
[2023-11-19 07:51:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:12,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:51:12,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:51:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:51:12,532 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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)
[2023-11-19 07:51:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:12,605 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions.
[2023-11-19 07:51:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:51:12,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23
[2023-11-19 07:51:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:12,622 INFO L225 Difference]: With dead ends: 174
[2023-11-19 07:51:12,622 INFO L226 Difference]: Without dead ends: 82
[2023-11-19 07:51:12,629 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
[2023-11-19 07:51:12,635 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:12,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:51:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2023-11-19 07:51:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2023-11-19 07:51:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 70 states have internal predecessors, (83), 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)
[2023-11-19 07:51:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions.
[2023-11-19 07:51:12,690 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 23
[2023-11-19 07:51:12,690 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:12,690 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions.
[2023-11-19 07:51:12,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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)
[2023-11-19 07:51:12,691 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions.
[2023-11-19 07:51:12,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-11-19 07:51:12,694 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:12,694 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]
[2023-11-19 07:51:12,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:51:12,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:12,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1054157966, now seen corresponding path program 1 times
[2023-11-19 07:51:12,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:12,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455369444]
[2023-11-19 07:51:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:12,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2023-11-19 07:51:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:12,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:12,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455369444]
[2023-11-19 07:51:12,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455369444] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:12,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:12,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:51:12,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368462846]
[2023-11-19 07:51:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:12,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:51:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:51:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:12,822 INFO L87 Difference]: Start difference. First operand 82 states and 106 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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)
[2023-11-19 07:51:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:12,852 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions.
[2023-11-19 07:51:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:51:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24
[2023-11-19 07:51:12,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:12,859 INFO L225 Difference]: With dead ends: 130
[2023-11-19 07:51:12,862 INFO L226 Difference]: Without dead ends: 73
[2023-11-19 07:51:12,863 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
[2023-11-19 07:51:12,865 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 12 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:12,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 170 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:51:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2023-11-19 07:51:12,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2023-11-19 07:51:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 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)
[2023-11-19 07:51:12,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions.
[2023-11-19 07:51:12,894 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 24
[2023-11-19 07:51:12,895 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:12,895 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions.
[2023-11-19 07:51:12,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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)
[2023-11-19 07:51:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions.
[2023-11-19 07:51:12,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2023-11-19 07:51:12,901 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:12,902 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]
[2023-11-19 07:51:12,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:51:12,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:12,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1057029214, now seen corresponding path program 1 times
[2023-11-19 07:51:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:12,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186386174]
[2023-11-19 07:51:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:13,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:13,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186386174]
[2023-11-19 07:51:13,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186386174] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:13,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:13,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:51:13,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728812736]
[2023-11-19 07:51:13,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:13,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:51:13,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:51:13,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:13,130 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2023-11-19 07:51:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:13,149 INFO L93 Difference]: Finished difference Result 139 states and 182 transitions.
[2023-11-19 07:51:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:51:13,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 28
[2023-11-19 07:51:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:13,152 INFO L225 Difference]: With dead ends: 139
[2023-11-19 07:51:13,152 INFO L226 Difference]: Without dead ends: 73
[2023-11-19 07:51:13,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:13,155 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:13,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:51:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2023-11-19 07:51:13,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2023-11-19 07:51:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 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)
[2023-11-19 07:51:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions.
[2023-11-19 07:51:13,169 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 28
[2023-11-19 07:51:13,170 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:13,170 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions.
[2023-11-19 07:51:13,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2023-11-19 07:51:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions.
[2023-11-19 07:51:13,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2023-11-19 07:51:13,173 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:13,173 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]
[2023-11-19 07:51:13,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:51:13,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1228134254, now seen corresponding path program 1 times
[2023-11-19 07:51:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824901443]
[2023-11-19 07:51:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:13,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2023-11-19 07:51:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:13,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:13,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824901443]
[2023-11-19 07:51:13,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824901443] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:13,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:51:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047930319]
[2023-11-19 07:51:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:13,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:51:13,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:51:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:13,314 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:51:13,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:13,406 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions.
[2023-11-19 07:51:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:51:13,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2023-11-19 07:51:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:13,409 INFO L225 Difference]: With dead ends: 182
[2023-11-19 07:51:13,409 INFO L226 Difference]: Without dead ends: 116
[2023-11-19 07:51:13,410 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
[2023-11-19 07:51:13,412 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 73 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:13,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 160 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:13,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2023-11-19 07:51:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114.
[2023-11-19 07:51:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 96 states have internal predecessors, (114), 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)
[2023-11-19 07:51:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 144 transitions.
[2023-11-19 07:51:13,442 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 144 transitions. Word has length 36
[2023-11-19 07:51:13,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:13,442 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 144 transitions.
[2023-11-19 07:51:13,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:51:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 144 transitions.
[2023-11-19 07:51:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2023-11-19 07:51:13,445 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:13,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:13,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:51:13,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:13,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:13,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1893109632, now seen corresponding path program 1 times
[2023-11-19 07:51:13,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:13,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165788513]
[2023-11-19 07:51:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:13,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2023-11-19 07:51:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:13,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:13,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165788513]
[2023-11-19 07:51:13,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165788513] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:13,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:13,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:51:13,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103643915]
[2023-11-19 07:51:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:13,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:13,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:13,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:13,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:13,607 INFO L87 Difference]: Start difference. First operand 114 states and 144 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:13,894 INFO L93 Difference]: Finished difference Result 356 states and 473 transitions.
[2023-11-19 07:51:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2023-11-19 07:51:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44
[2023-11-19 07:51:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:13,898 INFO L225 Difference]: With dead ends: 356
[2023-11-19 07:51:13,898 INFO L226 Difference]: Without dead ends: 249
[2023-11-19 07:51:13,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2023-11-19 07:51:13,902 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 154 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:13,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 397 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 07:51:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2023-11-19 07:51:13,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 224.
[2023-11-19 07:51:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 173 states have (on average 1.277456647398844) internal successors, (221), 184 states have internal predecessors, (221), 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)
[2023-11-19 07:51:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 287 transitions.
[2023-11-19 07:51:13,939 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 287 transitions. Word has length 44
[2023-11-19 07:51:13,939 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:13,939 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 287 transitions.
[2023-11-19 07:51:13,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 287 transitions.
[2023-11-19 07:51:13,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2023-11-19 07:51:13,942 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:13,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:13,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:51:13,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:13,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:13,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2111964350, now seen corresponding path program 1 times
[2023-11-19 07:51:13,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:13,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297034236]
[2023-11-19 07:51:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2023-11-19 07:51:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:14,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:14,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297034236]
[2023-11-19 07:51:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297034236] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:14,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:51:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862253249]
[2023-11-19 07:51:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:14,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:14,136 INFO L87 Difference]: Start difference. First operand 224 states and 287 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2023-11-19 07:51:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:14,386 INFO L93 Difference]: Finished difference Result 240 states and 305 transitions.
[2023-11-19 07:51:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-11-19 07:51:14,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44
[2023-11-19 07:51:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:14,398 INFO L225 Difference]: With dead ends: 240
[2023-11-19 07:51:14,399 INFO L226 Difference]: Without dead ends: 238
[2023-11-19 07:51:14,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2023-11-19 07:51:14,407 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 136 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:14,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 326 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:14,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2023-11-19 07:51:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 224.
[2023-11-19 07:51:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 173 states have (on average 1.260115606936416) internal successors, (218), 184 states have internal predecessors, (218), 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)
[2023-11-19 07:51:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 284 transitions.
[2023-11-19 07:51:14,439 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 284 transitions. Word has length 44
[2023-11-19 07:51:14,439 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:14,439 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 284 transitions.
[2023-11-19 07:51:14,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2023-11-19 07:51:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 284 transitions.
[2023-11-19 07:51:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2023-11-19 07:51:14,442 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:14,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:14,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:51:14,443 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:14,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1790289181, now seen corresponding path program 1 times
[2023-11-19 07:51:14,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:14,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951927958]
[2023-11-19 07:51:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:14,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2023-11-19 07:51:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:51:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951927958]
[2023-11-19 07:51:14,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951927958] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:14,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:14,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:51:14,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552304385]
[2023-11-19 07:51:14,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:14,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:14,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:14,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:14,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:14,565 INFO L87 Difference]: Start difference. First operand 224 states and 284 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:14,752 INFO L93 Difference]: Finished difference Result 459 states and 600 transitions.
[2023-11-19 07:51:14,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-19 07:51:14,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50
[2023-11-19 07:51:14,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:14,755 INFO L225 Difference]: With dead ends: 459
[2023-11-19 07:51:14,755 INFO L226 Difference]: Without dead ends: 242
[2023-11-19 07:51:14,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2023-11-19 07:51:14,757 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:14,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 338 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2023-11-19 07:51:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 230.
[2023-11-19 07:51:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 190 states have internal predecessors, (224), 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)
[2023-11-19 07:51:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 290 transitions.
[2023-11-19 07:51:14,809 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 290 transitions. Word has length 50
[2023-11-19 07:51:14,810 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:14,810 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 290 transitions.
[2023-11-19 07:51:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 290 transitions.
[2023-11-19 07:51:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2023-11-19 07:51:14,814 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:14,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:14,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:51:14,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:14,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1852328795, now seen corresponding path program 1 times
[2023-11-19 07:51:14,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:14,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347262071]
[2023-11-19 07:51:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2023-11-19 07:51:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:51:15,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347262071]
[2023-11-19 07:51:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347262071] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:15,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:51:15,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822689809]
[2023-11-19 07:51:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:15,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:15,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:15,021 INFO L87 Difference]: Start difference. First operand 230 states and 290 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:15,187 INFO L93 Difference]: Finished difference Result 415 states and 530 transitions.
[2023-11-19 07:51:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:51:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50
[2023-11-19 07:51:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:15,190 INFO L225 Difference]: With dead ends: 415
[2023-11-19 07:51:15,196 INFO L226 Difference]: Without dead ends: 192
[2023-11-19 07:51:15,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:51:15,200 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 145 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:15,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 235 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2023-11-19 07:51:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 187.
[2023-11-19 07:51:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 145 states have (on average 1.2275862068965517) internal successors, (178), 154 states have internal predecessors, (178), 21 states have call successors, (21), 18 states have call predecessors, (21), 20 states have return successors, (28), 21 states have call predecessors, (28), 21 states have call successors, (28)
[2023-11-19 07:51:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 227 transitions.
[2023-11-19 07:51:15,234 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 227 transitions. Word has length 50
[2023-11-19 07:51:15,236 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:15,236 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 227 transitions.
[2023-11-19 07:51:15,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-11-19 07:51:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 227 transitions.
[2023-11-19 07:51:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2023-11-19 07:51:15,237 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:15,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:15,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-19 07:51:15,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:15,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:15,239 INFO L85 PathProgramCache]: Analyzing trace with hash 417001919, now seen corresponding path program 1 times
[2023-11-19 07:51:15,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:15,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112399283]
[2023-11-19 07:51:15,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:15,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2023-11-19 07:51:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-19 07:51:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2023-11-19 07:51:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:51:15,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:15,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112399283]
[2023-11-19 07:51:15,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112399283] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:15,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:15,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-11-19 07:51:15,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859555242]
[2023-11-19 07:51:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:15,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-19 07:51:15,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:15,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-19 07:51:15,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:51:15,416 INFO L87 Difference]: Start difference. First operand 187 states and 227 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:51:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:15,934 INFO L93 Difference]: Finished difference Result 652 states and 815 transitions.
[2023-11-19 07:51:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2023-11-19 07:51:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54
[2023-11-19 07:51:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:15,939 INFO L225 Difference]: With dead ends: 652
[2023-11-19 07:51:15,939 INFO L226 Difference]: Without dead ends: 472
[2023-11-19 07:51:15,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600
[2023-11-19 07:51:15,943 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 301 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:15,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 354 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-19 07:51:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states.
[2023-11-19 07:51:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 379.
[2023-11-19 07:51:15,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 290 states have (on average 1.2137931034482758) internal successors, (352), 313 states have internal predecessors, (352), 46 states have call successors, (46), 36 states have call predecessors, (46), 42 states have return successors, (71), 44 states have call predecessors, (71), 46 states have call successors, (71)
[2023-11-19 07:51:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 469 transitions.
[2023-11-19 07:51:15,996 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 469 transitions. Word has length 54
[2023-11-19 07:51:15,997 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:15,997 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 469 transitions.
[2023-11-19 07:51:15,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:51:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 469 transitions.
[2023-11-19 07:51:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2023-11-19 07:51:15,999 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:15,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:15,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-19 07:51:16,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:16,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -666503357, now seen corresponding path program 1 times
[2023-11-19 07:51:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:16,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342616431]
[2023-11-19 07:51:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:16,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2023-11-19 07:51:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2023-11-19 07:51:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2023-11-19 07:51:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2023-11-19 07:51:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:51:16,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342616431]
[2023-11-19 07:51:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342616431] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:51:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817601596]
[2023-11-19 07:51:16,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:16,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:51:16,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:51:16,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:51:16,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:51:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:16,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:51:16,383 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:51:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:51:16,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:51:16,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817601596] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:16,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:51:16,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19
[2023-11-19 07:51:16,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441962815]
[2023-11-19 07:51:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:16,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:51:16,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:16,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:51:16,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342
[2023-11-19 07:51:16,590 INFO L87 Difference]: Start difference. First operand 379 states and 469 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5)
[2023-11-19 07:51:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:16,774 INFO L93 Difference]: Finished difference Result 739 states and 922 transitions.
[2023-11-19 07:51:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-19 07:51:16,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58
[2023-11-19 07:51:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:16,778 INFO L225 Difference]: With dead ends: 739
[2023-11-19 07:51:16,779 INFO L226 Difference]: Without dead ends: 367
[2023-11-19 07:51:16,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380
[2023-11-19 07:51:16,781 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 61 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:16,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 809 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:16,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states.
[2023-11-19 07:51:16,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365.
[2023-11-19 07:51:16,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 279 states have (on average 1.200716845878136) internal successors, (335), 301 states have internal predecessors, (335), 45 states have call successors, (45), 36 states have call predecessors, (45), 40 states have return successors, (61), 42 states have call predecessors, (61), 45 states have call successors, (61)
[2023-11-19 07:51:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 441 transitions.
[2023-11-19 07:51:16,821 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 441 transitions. Word has length 58
[2023-11-19 07:51:16,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:16,822 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 441 transitions.
[2023-11-19 07:51:16,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5)
[2023-11-19 07:51:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 441 transitions.
[2023-11-19 07:51:16,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2023-11-19 07:51:16,825 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:16,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:16,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:51:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-19 07:51:17,046 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:17,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 759895721, now seen corresponding path program 1 times
[2023-11-19 07:51:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961539359]
[2023-11-19 07:51:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2023-11-19 07:51:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-19 07:51:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 07:51:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2023-11-19 07:51:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77
[2023-11-19 07:51:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:51:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-19 07:51:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-11-19 07:51:17,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:17,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961539359]
[2023-11-19 07:51:17,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961539359] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:51:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274620922]
[2023-11-19 07:51:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:17,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:51:17,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:51:17,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:51:17,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:51:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:17,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-11-19 07:51:17,477 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:51:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:51:17,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:51:17,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274620922] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:17,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:51:17,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11
[2023-11-19 07:51:17,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300154877]
[2023-11-19 07:51:17,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:17,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:17,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:17,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2023-11-19 07:51:17,593 INFO L87 Difference]: Start difference. First operand 365 states and 441 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2023-11-19 07:51:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:17,766 INFO L93 Difference]: Finished difference Result 1038 states and 1329 transitions.
[2023-11-19 07:51:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-19 07:51:17,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96
[2023-11-19 07:51:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:17,773 INFO L225 Difference]: With dead ends: 1038
[2023-11-19 07:51:17,773 INFO L226 Difference]: Without dead ends: 770
[2023-11-19 07:51:17,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182
[2023-11-19 07:51:17,776 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 122 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:17,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 584 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:51:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states.
[2023-11-19 07:51:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 742.
[2023-11-19 07:51:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 560 states have (on average 1.1964285714285714) internal successors, (670), 596 states have internal predecessors, (670), 96 states have call successors, (96), 78 states have call predecessors, (96), 85 states have return successors, (168), 95 states have call predecessors, (168), 96 states have call successors, (168)
[2023-11-19 07:51:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 934 transitions.
[2023-11-19 07:51:17,862 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 934 transitions. Word has length 96
[2023-11-19 07:51:17,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:17,863 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 934 transitions.
[2023-11-19 07:51:17,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2023-11-19 07:51:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 934 transitions.
[2023-11-19 07:51:17,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2023-11-19 07:51:17,872 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:51:17,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:17,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:51:18,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:51:18,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:51:18,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1045542613, now seen corresponding path program 1 times
[2023-11-19 07:51:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:18,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434548148]
[2023-11-19 07:51:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2023-11-19 07:51:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2023-11-19 07:51:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-19 07:51:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-19 07:51:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 07:51:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2023-11-19 07:51:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77
[2023-11-19 07:51:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:51:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-19 07:51:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-19 07:51:18,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434548148]
[2023-11-19 07:51:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434548148] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:51:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418817069]
[2023-11-19 07:51:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:18,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:51:18,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:51:18,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:51:18,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:51:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:18,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:51:18,386 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:51:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2023-11-19 07:51:18,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:51:18,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418817069] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:18,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:51:18,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-11-19 07:51:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007075866]
[2023-11-19 07:51:18,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:18,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:51:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:51:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2023-11-19 07:51:18,456 INFO L87 Difference]: Start difference. First operand 742 states and 934 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2023-11-19 07:51:18,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:51:18,528 INFO L93 Difference]: Finished difference Result 1063 states and 1327 transitions.
[2023-11-19 07:51:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:51:18,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96
[2023-11-19 07:51:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:51:18,531 INFO L225 Difference]: With dead ends: 1063
[2023-11-19 07:51:18,531 INFO L226 Difference]: Without dead ends: 0
[2023-11-19 07:51:18,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182
[2023-11-19 07:51:18,535 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 15 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:51:18,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 350 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:51:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-19 07:51:18,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-19 07:51:18,537 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)
[2023-11-19 07:51:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-19 07:51:18,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96
[2023-11-19 07:51:18,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:51:18,538 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:51:18,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2023-11-19 07:51:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-19 07:51:18,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-19 07:51:18,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-19 07:51:18,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:51:18,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:51:18,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-19 07:51:20,752 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 586 592) no Hoare annotation was computed.
[2023-11-19 07:51:20,752 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 586 592) the Hoare annotation is: true
[2023-11-19 07:51:20,753 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 897 908) the Hoare annotation is: (let ((.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~methaneLevelCritical~0)| 1)) (.cse6 (< ~waterLevel~0 2))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6) (or .cse4 .cse1 (< ~waterLevel~0 1) .cse5 .cse2) (or .cse0 .cse1 .cse2 .cse3 .cse6)))
[2023-11-19 07:51:20,753 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed.
[2023-11-19 07:51:20,753 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed.
[2023-11-19 07:51:20,753 INFO L899 garLoopResultBuilder]: For program point L800(lines 775 804) no Hoare annotation was computed.
[2023-11-19 07:51:20,753 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed.
[2023-11-19 07:51:20,753 INFO L899 garLoopResultBuilder]: For program point L796(line 796) no Hoare annotation was computed.
[2023-11-19 07:51:20,754 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 793) no Hoare annotation was computed.
[2023-11-19 07:51:20,754 INFO L902 garLoopResultBuilder]: At program point L789-1(lines 789 793) the Hoare annotation is: true
[2023-11-19 07:51:20,754 INFO L899 garLoopResultBuilder]: For program point L786(line 786) no Hoare annotation was computed.
[2023-11-19 07:51:20,754 INFO L902 garLoopResultBuilder]: At program point L785-2(lines 785 799) the Hoare annotation is: true
[2023-11-19 07:51:20,754 INFO L902 garLoopResultBuilder]: At program point L781(line 781) the Hoare annotation is: true
[2023-11-19 07:51:20,754 INFO L899 garLoopResultBuilder]: For program point L781-1(line 781) no Hoare annotation was computed.
[2023-11-19 07:51:20,754 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 775 804) the Hoare annotation is: true
[2023-11-19 07:51:20,754 INFO L895 garLoopResultBuilder]: At program point L634(line 634) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse3) (or .cse1 .cse4 .cse2) (or .cse1 .cse4 .cse3)))
[2023-11-19 07:51:20,754 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 964 972) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 562 585) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (not .cse6)) (.cse3 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) (and .cse1 .cse2) .cse3 .cse4) (or .cse3 .cse5 .cse6 .cse4) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse7 (and .cse1 (= ~waterLevel~0 1))) (or .cse3 .cse5 (and .cse1 .cse6 .cse2) .cse7))))
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L639-1(lines 620 644) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L573-1(lines 573 579) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 767) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L763-2(lines 763 767) no Hoare annotation was computed.
[2023-11-19 07:51:20,755 INFO L899 garLoopResultBuilder]: For program point L978(line 978) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 565 584) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point L628(lines 628 636) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 641) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 974 981) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 562 585) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 (< |old(~waterLevel~0)| 1) (and .cse1 .cse2) .cse3 .cse4) (or .cse3 .cse5 .cse6 .cse7) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse6 (and .cse1 (= ~waterLevel~0 1))) (or .cse3 .cse5 .cse7 .cse4))))
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 671 678) no Hoare annotation was computed.
[2023-11-19 07:51:20,756 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 754 772) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (= 1 ~systemActive~0))) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (and .cse2 (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4 .cse5) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse4 .cse6) (or .cse4 .cse7 .cse5 .cse8) (or .cse0 .cse1 .cse4 .cse6 .cse3) (or .cse4 (<= 2 ~waterLevel~0) .cse7 .cse6 .cse8))))
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 881) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point L877-2(lines 873 884) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 562 585) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 690 698) no Hoare annotation was computed.
[2023-11-19 07:51:20,757 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed.
[2023-11-19 07:51:20,763 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 909 917) the Hoare annotation is: true
[2023-11-19 07:51:20,763 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L895 garLoopResultBuilder]: At program point L543(lines 496 544) the Hoare annotation is: false
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point L498(lines 497 542) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 538) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 836 845) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 93 99) no Hoare annotation was computed.
[2023-11-19 07:51:20,764 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 846 868) no Hoare annotation was computed.
[2023-11-19 07:51:20,765 INFO L895 garLoopResultBuilder]: At program point L519(line 519) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3)))
[2023-11-19 07:51:20,765 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-11-19 07:51:20,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-11-19 07:51:20,765 INFO L895 garLoopResultBuilder]: At program point L540(lines 497 542) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3)))
[2023-11-19 07:51:20,765 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point L507-1(lines 507 513) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point L499(lines 499 503) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 829 835) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed.
[2023-11-19 07:51:20,766 INFO L895 garLoopResultBuilder]: At program point L533-2(lines 527 538) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse6) (and .cse4 .cse0 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3)))
[2023-11-19 07:51:20,766 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-19 07:51:20,767 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 100 106) no Hoare annotation was computed.
[2023-11-19 07:51:20,767 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 523) no Hoare annotation was computed.
[2023-11-19 07:51:20,767 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 517 523) no Hoare annotation was computed.
[2023-11-19 07:51:20,767 INFO L899 garLoopResultBuilder]: For program point L546(lines 487 550) no Hoare annotation was computed.
[2023-11-19 07:51:20,767 INFO L895 garLoopResultBuilder]: At program point L509(line 509) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3)))
[2023-11-19 07:51:20,768 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 863) no Hoare annotation was computed.
[2023-11-19 07:51:20,768 INFO L899 garLoopResultBuilder]: For program point L856-2(lines 856 863) no Hoare annotation was computed.
[2023-11-19 07:51:20,768 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 107 115) no Hoare annotation was computed.
[2023-11-19 07:51:20,768 INFO L899 garLoopResultBuilder]: For program point L954(lines 954 960) no Hoare annotation was computed.
[2023-11-19 07:51:20,768 INFO L899 garLoopResultBuilder]: For program point L661(lines 661 667) no Hoare annotation was computed.
[2023-11-19 07:51:20,769 INFO L899 garLoopResultBuilder]: For program point L661-2(lines 654 670) no Hoare annotation was computed.
[2023-11-19 07:51:20,770 INFO L895 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse5)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not .cse4)) (.cse3 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse4 .cse5))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)))))
[2023-11-19 07:51:20,770 INFO L899 garLoopResultBuilder]: For program point L684-1(line 684) no Hoare annotation was computed.
[2023-11-19 07:51:20,770 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 594 618) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2) .cse3)))
[2023-11-19 07:51:20,771 INFO L899 garLoopResultBuilder]: For program point L744(lines 744 748) no Hoare annotation was computed.
[2023-11-19 07:51:20,772 INFO L899 garLoopResultBuilder]: For program point L744-2(lines 744 748) no Hoare annotation was computed.
[2023-11-19 07:51:20,772 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 950 963) no Hoare annotation was computed.
[2023-11-19 07:51:20,772 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) (.cse9 (= 1 ~systemActive~0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (and .cse5 .cse6 .cse9 .cse10)) (.cse4 (not (= ~waterLevel~0 1))) (.cse1 (not .cse10)) (.cse2 (not .cse9)) (.cse7 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2) .cse3) (or .cse4 .cse1 .cse2 (and .cse5 .cse6 .cse7) .cse3) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 .cse8) (or .cse4 .cse1 .cse2 .cse7 .cse8))))
[2023-11-19 07:51:20,772 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 735 753) no Hoare annotation was computed.
[2023-11-19 07:51:20,772 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 594 618) no Hoare annotation was computed.
[2023-11-19 07:51:20,772 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 610) no Hoare annotation was computed.
[2023-11-19 07:51:20,773 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 615) no Hoare annotation was computed.
[2023-11-19 07:51:20,773 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 679 689) no Hoare annotation was computed.
[2023-11-19 07:51:20,773 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensor_returnLabel#1(lines 645 652) no Hoare annotation was computed.
[2023-11-19 07:51:20,773 INFO L895 garLoopResultBuilder]: At program point L613(line 613) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1))))
[2023-11-19 07:51:20,774 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 594 618) no Hoare annotation was computed.
[2023-11-19 07:51:20,774 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed.
[2023-11-19 07:51:20,774 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 885 896) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< |old(~waterLevel~0)| 1)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 (< |old(~waterLevel~0)| 2) .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse4 (< ~methaneLevelCritical~0 1))))
[2023-11-19 07:51:20,774 INFO L899 garLoopResultBuilder]: For program point L889-1(lines 885 896) no Hoare annotation was computed.
[2023-11-19 07:51:20,777 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:20,779 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:51:20,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:51:20 BoogieIcfgContainer
[2023-11-19 07:51:20,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:51:20,799 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:51:20,799 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:51:20,800 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:51:20,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:12" (3/4) ...
[2023-11-19 07:51:20,802 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:51:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base
[2023-11-19 07:51:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel
[2023-11-19 07:51:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup
[2023-11-19 07:51:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift
[2023-11-19 07:51:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical
[2023-11-19 07:51:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor
[2023-11-19 07:51:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise
[2023-11-19 07:51:20,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges
[2023-11-19 07:51:20,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges
[2023-11-19 07:51:20,825 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2023-11-19 07:51:20,825 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:51:20,826 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:51:20,982 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:51:20,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:51:20,983 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:51:20,984 INFO L158 Benchmark]: Toolchain (without parser) took 10070.49ms. Allocated memory was 148.9MB in the beginning and 237.0MB in the end (delta: 88.1MB). Free memory was 101.2MB in the beginning and 111.5MB in the end (delta: -10.4MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,984 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:51:20,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.15ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 81.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.34ms. Allocated memory is still 148.9MB. Free memory was 81.7MB in the beginning and 79.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,986 INFO L158 Benchmark]: Boogie Preprocessor took 31.03ms. Allocated memory is still 148.9MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,986 INFO L158 Benchmark]: RCFGBuilder took 606.18ms. Allocated memory is still 148.9MB. Free memory was 77.5MB in the beginning and 60.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,987 INFO L158 Benchmark]: TraceAbstraction took 8684.36ms. Allocated memory was 148.9MB in the beginning and 237.0MB in the end (delta: 88.1MB). Free memory was 59.8MB in the beginning and 119.9MB in the end (delta: -60.1MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,987 INFO L158 Benchmark]: Witness Printer took 184.33ms. Allocated memory is still 237.0MB. Free memory was 118.9MB in the beginning and 111.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:51:20,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 498.15ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 81.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 58.34ms. Allocated memory is still 148.9MB. Free memory was 81.7MB in the beginning and 79.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.03ms. Allocated memory is still 148.9MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 606.18ms. Allocated memory is still 148.9MB. Free memory was 77.5MB in the beginning and 60.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 8684.36ms. Allocated memory was 148.9MB in the beginning and 237.0MB in the end (delta: 88.1MB). Free memory was 59.8MB in the beginning and 119.9MB in the end (delta: -60.1MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB.
* Witness Printer took 184.33ms. Allocated memory is still 237.0MB. Free memory was 118.9MB in the beginning and 111.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResultAtLocation [Line: 49]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49]
- GenericResultAtLocation [Line: 78]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78]
- GenericResultAtLocation [Line: 116]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116]
- GenericResultAtLocation [Line: 482]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482]
- GenericResultAtLocation [Line: 551]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551]
- GenericResultAtLocation [Line: 773]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773]
- GenericResultAtLocation [Line: 869]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869]
- GenericResultAtLocation [Line: 973]: Unsoundness Warning
Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973]
* 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: 978]: 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, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1185 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1158 mSDsluCounter, 3930 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2719 mSDsCounter, 243 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1030 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 243 mSolverCounterUnsat, 1211 mSDtfsCounter, 1030 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=742occurred in iteration=11, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 181 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 684 PreInvPairs, 761 NumberOfFragments, 907 HoareAnnotationTreeSize, 684 FomulaSimplifications, 1626 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FomulaSimplificationsInter, 2942 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 838 ConstructedInterpolants, 0 QuantifiedInterpolants, 1425 SizeOfPredicates, 11 NumberOfNonLiveVariables, 882 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 129/135 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: 497]: Loop Invariant
Derived loop invariant: (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || ((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)))
- InvariantResult [Line: 496]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 785]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:51:21,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c5d082-86c7-4bce-95ce-c319182e01a8/bin/uautomizer-verify-uCwYo4JHxu/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