./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --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 fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845
..................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:36:25,305 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:36:25,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:36:25,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:36:25,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:36:25,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:36:25,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:36:25,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:36:25,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:36:25,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:36:25,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:36:25,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:36:25,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:36:25,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:36:25,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:36:25,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:36:25,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:36:25,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:36:25,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:36:25,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:36:25,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:36:25,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:36:25,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:36:25,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:36:25,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:36:25,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:36:25,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:36:25,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:36:25,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:36:25,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:36:25,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:36:25,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:36:25,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:36:25,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:36:25,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:36:25,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:36:25,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:36:25,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:36:25,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:36:25,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:36:25,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:36:25,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:36:25,488 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:36:25,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:36:25,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:36:25,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:36:25,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:36:25,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:36:25,497 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:36:25,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:36:25,497 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:36:25,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:36:25,499 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:36:25,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:36:25,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:36:25,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:36:25,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:36:25,500 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:36:25,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:36:25,500 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:36:25,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:36:25,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:36:25,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:36:25,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:36:25,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:36:25,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:36:25,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:36:25,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:36:25,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:36:25,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845
[2021-10-28 23:36:25,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:36:25,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:36:25,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:36:25,792 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:36:25,793 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:36:25,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c
[2021-10-28 23:36:25,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/data/61da21927/7955b80d8e97432e89339306443c1769/FLAG76d8e7892
[2021-10-28 23:36:26,290 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:36:26,291 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c
[2021-10-28 23:36:26,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/data/61da21927/7955b80d8e97432e89339306443c1769/FLAG76d8e7892
[2021-10-28 23:36:26,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/data/61da21927/7955b80d8e97432e89339306443c1769
[2021-10-28 23:36:26,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:36:26,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:36:26,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:36:26,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:36:26,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:36:26,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:26,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408a0bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26, skipping insertion in model container
[2021-10-28 23:36:26,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:26,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:36:26,710 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:36:26,916 WARN L228 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_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731]
[2021-10-28 23:36:26,920 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:36:26,934 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:36:26,947 WARN L228 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_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731]
[2021-10-28 23:36:26,948 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:36:26,961 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:36:26,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26 WrapperNode
[2021-10-28 23:36:26,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:36:26,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:36:26,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:36:26,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:36:26,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:26,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:26,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:36:26,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:36:26,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:36:26,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:36:27,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:36:27,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:36:27,014 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:36:27,014 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:36:27,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (1/1) ...
[2021-10-28 23:36:27,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:36:27,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:36:27,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:36:27,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:36:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure A
[2021-10-28 23:36:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure A
[2021-10-28 23:36:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:36:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:36:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:36:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:36:27,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:36:27,345 INFO L299 CfgBuilder]: Removed 4 assume(true) statements.
[2021-10-28 23:36:27,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:27 BoogieIcfgContainer
[2021-10-28 23:36:27,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:36:27,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:36:27,349 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:36:27,364 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:36:27,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:36:26" (1/3) ...
[2021-10-28 23:36:27,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b07eadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:36:27, skipping insertion in model container
[2021-10-28 23:36:27,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:26" (2/3) ...
[2021-10-28 23:36:27,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b07eadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:36:27, skipping insertion in model container
[2021-10-28 23:36:27,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:27" (3/3) ...
[2021-10-28 23:36:27,367 INFO L111 eAbstractionObserver]: Analyzing ICFG BallRajamani-SPIN2000-Fig1.c
[2021-10-28 23:36:27,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:36:27,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-28 23:36:27,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:36:27,441 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:36:27,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-28 23:36:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-10-28 23:36:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-28 23:36:27,462 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:36:27,463 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:36:27,463 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:36:27,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:36:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash -103722487, now seen corresponding path program 1 times
[2021-10-28 23:36:27,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:36:27,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453331219]
[2021-10-28 23:36:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:36:27,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:36:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:36:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:36:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:36:27,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2021-10-28 23:36:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:36:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-28 23:36:27,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:36:27,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453331219]
[2021-10-28 23:36:27,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453331219] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:36:27,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9767319]
[2021-10-28 23:36:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:36:27,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:36:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:36:27,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:36:27,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 23:36:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:36:27,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:36:27,887 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:36:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-28 23:36:28,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9767319] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:36:28,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:36:28,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6
[2021-10-28 23:36:28,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860504170]
[2021-10-28 23:36:28,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:36:28,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:36:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:36:28,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:36:28,085 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:36:28,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:36:28,235 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions.
[2021-10-28 23:36:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-10-28 23:36:28,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2021-10-28 23:36:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:36:28,245 INFO L225 Difference]: With dead ends: 39
[2021-10-28 23:36:28,245 INFO L226 Difference]: Without dead ends: 17
[2021-10-28 23:36:28,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2021-10-28 23:36:28,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2021-10-28 23:36:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2021-10-28 23:36:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2021-10-28 23:36:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2021-10-28 23:36:28,290 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 16
[2021-10-28 23:36:28,291 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:36:28,291 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2021-10-28 23:36:28,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:36:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2021-10-28 23:36:28,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 23:36:28,295 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:36:28,295 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:36:28,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:36:28,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2021-10-28 23:36:28,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:36:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:36:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1835094219, now seen corresponding path program 1 times
[2021-10-28 23:36:28,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:36:28,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304316754]
[2021-10-28 23:36:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:36:28,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:36:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:36:28,558 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:36:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:36:28,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:36:28,640 INFO L627 BasicCegarLoop]: Counterexample is feasible
[2021-10-28 23:36:28,641 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:36:28,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 23:36:28,647 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-10-28 23:36:28,650 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:36:28,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:36:28 BoogieIcfgContainer
[2021-10-28 23:36:28,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:36:28,691 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:36:28,691 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:36:28,691 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:36:28,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:27" (3/4) ...
[2021-10-28 23:36:28,694 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-28 23:36:28,760 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:36:28,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:36:28,771 INFO L168 Benchmark]: Toolchain (without parser) took 2096.34 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 65.1 MB in the beginning and 89.3 MB in the end (delta: -24.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,771 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 81.0 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.92 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 78.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.86 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 77.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,773 INFO L168 Benchmark]: Boogie Preprocessor took 17.88 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 76.2 MB in the end (delta: 893.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,774 INFO L168 Benchmark]: RCFGBuilder took 333.10 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 66.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,774 INFO L168 Benchmark]: TraceAbstraction took 1341.68 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 66.3 MB in the beginning and 92.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,775 INFO L168 Benchmark]: Witness Printer took 78.35 ms. Allocated memory is still 127.9 MB. Free memory was 92.1 MB in the beginning and 89.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:36:28,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 81.0 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 281.92 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 78.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 31.86 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 77.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 17.88 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 76.2 MB in the end (delta: 893.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 333.10 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 66.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 1341.68 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 66.3 MB in the beginning and 92.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB.
* Witness Printer took 78.35 ms. Allocated memory is still 127.9 MB. Free memory was 92.1 MB in the beginning and 89.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 33]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L16] int g;
VAL [g=0]
[L28] int g = __VERIFIER_nondet_int();
[L29] int h = !g;
VAL [g=0]
[L30] CALL A(g,h)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, g=0]
[L19] COND TRUE \read(a1)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=0]
[L20] CALL A(a2,a1)
VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, g=0]
[L19] COND FALSE !(\read(a1))
[L22] g = a2
VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, a1=0, a2=-1, g=-1]
[L20] RET A(a2,a1)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, A(a2,a1)=-2, a1=-1, a2=0, g=-1]
[L30] RET A(g,h)
VAL [g=-1]
[L31] CALL A(g,h)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, g=-1]
[L19] COND TRUE \read(a1)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1]
[L20] CALL A(a2,a1)
VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, g=-1]
[L19] COND FALSE !(\read(a1))
[L22] g = a2
VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, a1=0, a2=-1, g=-1]
[L20] RET A(a2,a1)
VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, A(a2,a1)=-4, a1=-1, a2=0, g=-1]
[L31] RET A(g,h)
VAL [g=-1]
[L32] COND TRUE \read(g)
VAL [g=-1]
[L33] reach_error()
VAL [g=-1]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 10 SDslu, 36 SDs, 0 SdLazy, 44 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 1 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 2/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-10-28 23:36:28,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad934aac-d73d-4cdd-a3fe-5afb39586bf4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...