./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version e943c265
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be --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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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-e943c26
[2021-10-21 19:05:08,323 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-21 19:05:08,326 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-21 19:05:08,381 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-21 19:05:08,381 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-21 19:05:08,383 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-21 19:05:08,384 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-21 19:05:08,387 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-21 19:05:08,389 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-21 19:05:08,390 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-21 19:05:08,391 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-21 19:05:08,393 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-21 19:05:08,393 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-21 19:05:08,394 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-21 19:05:08,396 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-21 19:05:08,398 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-21 19:05:08,399 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-21 19:05:08,400 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-21 19:05:08,402 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-21 19:05:08,405 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-21 19:05:08,408 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-21 19:05:08,412 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-21 19:05:08,413 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-21 19:05:08,414 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-21 19:05:08,424 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-21 19:05:08,424 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-21 19:05:08,424 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-21 19:05:08,426 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-21 19:05:08,426 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-21 19:05:08,427 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-21 19:05:08,428 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-21 19:05:08,428 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-21 19:05:08,429 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-21 19:05:08,430 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-21 19:05:08,432 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-21 19:05:08,432 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-21 19:05:08,433 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-21 19:05:08,433 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-21 19:05:08,433 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-21 19:05:08,438 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-21 19:05:08,440 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-21 19:05:08,441 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-21 19:05:08,485 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-21 19:05:08,485 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-21 19:05:08,486 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-21 19:05:08,486 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-21 19:05:08,494 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-21 19:05:08,495 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-21 19:05:08,495 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-21 19:05:08,495 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-21 19:05:08,495 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-21 19:05:08,496 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-21 19:05:08,497 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-21 19:05:08,497 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-21 19:05:08,497 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-21 19:05:08,497 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-21 19:05:08,498 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-21 19:05:08,498 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-21 19:05:08,498 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-21 19:05:08,498 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-21 19:05:08,499 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-21 19:05:08,499 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-21 19:05:08,499 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-21 19:05:08,499 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-21 19:05:08,500 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-21 19:05:08,500 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-21 19:05:08,500 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-21 19:05:08,500 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-21 19:05:08,501 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-21 19:05:08,501 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-21 19:05:08,501 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-21 19:05:08,503 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-21 19:05:08,503 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-21 19:05:08,503 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-21 19:05:08,504 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_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/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_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be
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 -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09
[2021-10-21 19:05:08,798 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-21 19:05:08,853 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-21 19:05:08,856 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-21 19:05:08,857 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-21 19:05:08,859 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-21 19:05:08,860 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c
[2021-10-21 19:05:08,920 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/data/f0cc5e84e/27553f1c37cd488d9b9d5059c1dee2af/FLAG1a3385661
[2021-10-21 19:05:09,438 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-21 19:05:09,439 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c
[2021-10-21 19:05:09,451 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/data/f0cc5e84e/27553f1c37cd488d9b9d5059c1dee2af/FLAG1a3385661
[2021-10-21 19:05:09,735 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/data/f0cc5e84e/27553f1c37cd488d9b9d5059c1dee2af
[2021-10-21 19:05:09,737 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-21 19:05:09,739 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-21 19:05:09,740 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-21 19:05:09,741 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-21 19:05:09,744 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-21 19:05:09,744 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:09" (1/1) ...
[2021-10-21 19:05:09,746 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c13c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:09, skipping insertion in model container
[2021-10-21 19:05:09,746 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:09" (1/1) ...
[2021-10-21 19:05:09,753 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-21 19:05:09,798 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-21 19:05:10,097 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_a0176bd4-6935-46b4-992b-6106a336fab2/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156]
[2021-10-21 19:05:10,141 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 19:05:10,165 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-21 19:05:10,274 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_a0176bd4-6935-46b4-992b-6106a336fab2/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156]
[2021-10-21 19:05:10,287 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 19:05:10,305 INFO  L208         MainTranslator]: Completed translation
[2021-10-21 19:05:10,305 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10 WrapperNode
[2021-10-21 19:05:10,306 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-21 19:05:10,307 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-21 19:05:10,307 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-21 19:05:10,307 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-21 19:05:10,315 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,333 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,390 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-21 19:05:10,391 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-21 19:05:10,391 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-21 19:05:10,391 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-21 19:05:10,406 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,406 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,412 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,430 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,445 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,455 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,458 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,465 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-21 19:05:10,466 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-21 19:05:10,466 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-21 19:05:10,466 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-21 19:05:10,477 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (1/1) ...
[2021-10-21 19:05:10,497 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-21 19:05:10,511 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/z3
[2021-10-21 19:05:10,528 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-21 19:05:10,562 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-21 19:05:10,584 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-21 19:05:10,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-21 19:05:10,585 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-21 19:05:10,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-21 19:05:11,630 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-21 19:05:11,630 INFO  L299             CfgBuilder]: Removed 202 assume(true) statements.
[2021-10-21 19:05:11,632 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:11 BoogieIcfgContainer
[2021-10-21 19:05:11,633 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-21 19:05:11,634 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-21 19:05:11,634 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-21 19:05:11,638 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-21 19:05:11,638 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:05:09" (1/3) ...
[2021-10-21 19:05:11,639 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9be510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:05:11, skipping insertion in model container
[2021-10-21 19:05:11,639 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:10" (2/3) ...
[2021-10-21 19:05:11,640 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9be510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:05:11, skipping insertion in model container
[2021-10-21 19:05:11,640 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:11" (3/3) ...
[2021-10-21 19:05:11,653 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c
[2021-10-21 19:05:11,659 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-21 19:05:11,659 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-21 19:05:11,719 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-21 19:05:11,727 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
[2021-10-21 19:05:11,727 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-21 19:05:11,746 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 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)
[2021-10-21 19:05:11,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-21 19:05:11,753 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:11,753 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 19:05:11,754 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:11,759 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:11,759 INFO  L82        PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times
[2021-10-21 19:05:11,768 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:11,769 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855951333]
[2021-10-21 19:05:11,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:11,770 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:11,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:05:12,141 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:05:12,142 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:05:12,143 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855951333]
[2021-10-21 19:05:12,143 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855951333] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:05:12,144 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:05:12,144 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-21 19:05:12,151 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558071118]
[2021-10-21 19:05:12,161 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-21 19:05:12,164 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:05:12,182 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-21 19:05:12,184 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-21 19:05:12,189 INFO  L87              Difference]: Start difference. First operand  has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 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) Second operand  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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)
[2021-10-21 19:05:12,249 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:05:12,251 INFO  L93              Difference]: Finished difference Result 280 states and 419 transitions.
[2021-10-21 19:05:12,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-21 19:05:12,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18
[2021-10-21 19:05:12,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 19:05:12,268 INFO  L225             Difference]: With dead ends: 280
[2021-10-21 19:05:12,268 INFO  L226             Difference]: Without dead ends: 139
[2021-10-21 19:05:12,273 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-21 19:05:12,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2021-10-21 19:05:12,322 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139.
[2021-10-21 19:05:12,324 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 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)
[2021-10-21 19:05:12,325 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions.
[2021-10-21 19:05:12,326 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18
[2021-10-21 19:05:12,327 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 19:05:12,327 INFO  L470      AbstractCegarLoop]: Abstraction has 139 states and 201 transitions.
[2021-10-21 19:05:12,327 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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)
[2021-10-21 19:05:12,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions.
[2021-10-21 19:05:12,329 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-21 19:05:12,329 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:12,329 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 19:05:12,330 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-21 19:05:12,330 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:12,331 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:12,331 INFO  L82        PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times
[2021-10-21 19:05:12,331 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:12,332 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39627181]
[2021-10-21 19:05:12,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:12,332 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:12,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:05:12,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:05:12,418 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:05:12,419 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39627181]
[2021-10-21 19:05:12,419 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39627181] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:05:12,419 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:05:12,420 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-21 19:05:12,420 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723073107]
[2021-10-21 19:05:12,421 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-21 19:05:12,422 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:05:12,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-21 19:05:12,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 19:05:12,423 INFO  L87              Difference]: Start difference. First operand 139 states and 201 transitions. Second operand  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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)
[2021-10-21 19:05:12,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:05:12,439 INFO  L93              Difference]: Finished difference Result 139 states and 201 transitions.
[2021-10-21 19:05:12,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-21 19:05:12,440 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 19
[2021-10-21 19:05:12,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 19:05:12,441 INFO  L225             Difference]: With dead ends: 139
[2021-10-21 19:05:12,441 INFO  L226             Difference]: Without dead ends: 57
[2021-10-21 19:05:12,443 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 19:05:12,443 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2021-10-21 19:05:12,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2021-10-21 19:05:12,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 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)
[2021-10-21 19:05:12,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions.
[2021-10-21 19:05:12,449 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19
[2021-10-21 19:05:12,449 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 19:05:12,449 INFO  L470      AbstractCegarLoop]: Abstraction has 57 states and 82 transitions.
[2021-10-21 19:05:12,450 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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)
[2021-10-21 19:05:12,450 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions.
[2021-10-21 19:05:12,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-21 19:05:12,451 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:12,451 INFO  L512         BasicCegarLoop]: 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]
[2021-10-21 19:05:12,452 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-21 19:05:12,452 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:12,453 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:12,453 INFO  L82        PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times
[2021-10-21 19:05:12,453 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:12,454 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940266194]
[2021-10-21 19:05:12,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:12,454 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:12,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:05:12,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:05:12,602 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:05:12,602 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940266194]
[2021-10-21 19:05:12,602 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940266194] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:05:12,603 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:05:12,603 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-21 19:05:12,603 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316637877]
[2021-10-21 19:05:12,604 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-21 19:05:12,604 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:05:12,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-21 19:05:12,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2021-10-21 19:05:12,605 INFO  L87              Difference]: Start difference. First operand 57 states and 82 transitions. Second operand  has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2021-10-21 19:05:12,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:05:12,800 INFO  L93              Difference]: Finished difference Result 184 states and 271 transitions.
[2021-10-21 19:05:12,800 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-21 19:05:12,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) Word has length 24
[2021-10-21 19:05:12,801 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 19:05:12,802 INFO  L225             Difference]: With dead ends: 184
[2021-10-21 19:05:12,802 INFO  L226             Difference]: Without dead ends: 133
[2021-10-21 19:05:12,803 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-21 19:05:12,804 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2021-10-21 19:05:12,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78.
[2021-10-21 19:05:12,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 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)
[2021-10-21 19:05:12,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions.
[2021-10-21 19:05:12,824 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24
[2021-10-21 19:05:12,824 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 19:05:12,824 INFO  L470      AbstractCegarLoop]: Abstraction has 78 states and 114 transitions.
[2021-10-21 19:05:12,825 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2021-10-21 19:05:12,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions.
[2021-10-21 19:05:12,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-21 19:05:12,826 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:12,827 INFO  L512         BasicCegarLoop]: 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]
[2021-10-21 19:05:12,827 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-21 19:05:12,827 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:12,828 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:12,828 INFO  L82        PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times
[2021-10-21 19:05:12,829 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:12,829 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959964404]
[2021-10-21 19:05:12,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:12,829 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:12,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:05:12,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:05:12,887 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:05:12,887 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959964404]
[2021-10-21 19:05:12,887 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959964404] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:05:12,888 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:05:12,888 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-21 19:05:12,888 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112028149]
[2021-10-21 19:05:12,889 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-21 19:05:12,889 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:05:12,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-21 19:05:12,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 19:05:12,890 INFO  L87              Difference]: Start difference. First operand 78 states and 114 transitions. Second operand  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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)
[2021-10-21 19:05:12,939 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:05:12,939 INFO  L93              Difference]: Finished difference Result 173 states and 255 transitions.
[2021-10-21 19:05:12,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-21 19:05:12,939 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) Word has length 26
[2021-10-21 19:05:12,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 19:05:12,941 INFO  L225             Difference]: With dead ends: 173
[2021-10-21 19:05:12,941 INFO  L226             Difference]: Without dead ends: 101
[2021-10-21 19:05:12,942 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 19:05:12,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2021-10-21 19:05:12,953 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99.
[2021-10-21 19:05:12,954 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 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)
[2021-10-21 19:05:12,963 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions.
[2021-10-21 19:05:12,963 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26
[2021-10-21 19:05:12,964 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 19:05:12,964 INFO  L470      AbstractCegarLoop]: Abstraction has 99 states and 141 transitions.
[2021-10-21 19:05:12,964 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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)
[2021-10-21 19:05:12,965 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions.
[2021-10-21 19:05:12,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-21 19:05:12,971 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:12,971 INFO  L512         BasicCegarLoop]: 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]
[2021-10-21 19:05:12,971 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-21 19:05:12,972 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:12,973 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:12,974 INFO  L82        PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times
[2021-10-21 19:05:12,974 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:12,975 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756398253]
[2021-10-21 19:05:12,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:12,975 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:13,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:05:13,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:05:13,102 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:05:13,102 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756398253]
[2021-10-21 19:05:13,102 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756398253] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:05:13,103 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:05:13,103 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-21 19:05:13,104 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680248758]
[2021-10-21 19:05:13,105 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-21 19:05:13,105 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:05:13,106 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-21 19:05:13,106 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-21 19:05:13,106 INFO  L87              Difference]: Start difference. First operand 99 states and 141 transitions. Second operand  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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)
[2021-10-21 19:05:13,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:05:13,237 INFO  L93              Difference]: Finished difference Result 515 states and 751 transitions.
[2021-10-21 19:05:13,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-21 19:05:13,237 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) Word has length 27
[2021-10-21 19:05:13,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 19:05:13,243 INFO  L225             Difference]: With dead ends: 515
[2021-10-21 19:05:13,243 INFO  L226             Difference]: Without dead ends: 422
[2021-10-21 19:05:13,245 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-21 19:05:13,246 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 422 states.
[2021-10-21 19:05:13,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167.
[2021-10-21 19:05:13,271 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167 states, 166 states have (on average 1.4036144578313252) internal successors, (233), 166 states have internal predecessors, (233), 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)
[2021-10-21 19:05:13,271 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions.
[2021-10-21 19:05:13,272 INFO  L78                 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27
[2021-10-21 19:05:13,272 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 19:05:13,272 INFO  L470      AbstractCegarLoop]: Abstraction has 167 states and 233 transitions.
[2021-10-21 19:05:13,272 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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)
[2021-10-21 19:05:13,273 INFO  L276                IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions.
[2021-10-21 19:05:13,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-21 19:05:13,274 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 19:05:13,274 INFO  L512         BasicCegarLoop]: 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]
[2021-10-21 19:05:13,274 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-21 19:05:13,274 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 19:05:13,275 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:05:13,275 INFO  L82        PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times
[2021-10-21 19:05:13,275 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:05:13,275 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144037421]
[2021-10-21 19:05:13,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:05:13,276 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:05:13,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:05:13,371 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:05:13,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:05:13,507 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:05:13,508 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-21 19:05:13,509 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 19:05:13,511 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 19:05:13,511 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 19:05:13,512 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-21 19:05:13,519 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-21 19:05:13,641 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:05:13 BoogieIcfgContainer
[2021-10-21 19:05:13,649 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-21 19:05:13,650 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-21 19:05:13,650 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-21 19:05:13,651 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-21 19:05:13,652 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:11" (3/4) ...
[2021-10-21 19:05:13,654 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-21 19:05:13,770 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/witness.graphml
[2021-10-21 19:05:13,776 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-21 19:05:13,778 INFO  L168              Benchmark]: Toolchain (without parser) took 4038.27 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 55.3 MB in the beginning and 87.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,779 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 72.9 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,780 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 565.74 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 55.1 MB in the beginning and 87.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,782 INFO  L168              Benchmark]: Boogie Procedure Inliner took 83.45 ms. Allocated memory is still 117.4 MB. Free memory was 87.2 MB in the beginning and 82.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,782 INFO  L168              Benchmark]: Boogie Preprocessor took 73.91 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 79.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,783 INFO  L168              Benchmark]: RCFGBuilder took 1166.97 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 31.2 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,783 INFO  L168              Benchmark]: TraceAbstraction took 2015.31 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 30.6 MB in the beginning and 99.8 MB in the end (delta: -69.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,784 INFO  L168              Benchmark]: Witness Printer took 126.29 ms. Allocated memory is still 142.6 MB. Free memory was 99.8 MB in the beginning and 87.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-21 19:05:13,786 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 72.9 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 565.74 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 55.1 MB in the beginning and 87.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 83.45 ms. Allocated memory is still 117.4 MB. Free memory was 87.2 MB in the beginning and 82.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 73.91 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 79.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1166.97 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 31.2 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 2015.31 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 30.6 MB in the beginning and 99.8 MB in the end (delta: -69.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB.
 * Witness Printer took 126.29 ms. Allocated memory is still 142.6 MB. Free memory was 99.8 MB in the beginning and 87.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 704]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L219]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L424]               int waterLevel  =    1;
[L425]               int methaneLevelCritical  =    0;
[L527]               int cleanupTimeShifts  =    4;
[L779]               int pumpRunning  =    0;
[L780]               int systemActive  =    1;
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L606]               int retValue_acc ;
[L607]               int tmp ;
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L655]               int retValue_acc ;
[L658]               retValue_acc = 1
[L659]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L613]               tmp = valid_product()
[L615]   COND TRUE   \read(tmp)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L711]               int splverifierCounter ;
[L712]               int tmp ;
[L713]               int tmp___0 ;
[L714]               int tmp___1 ;
[L715]               int tmp___2 ;
[L718]               splverifierCounter = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L720]   COND TRUE   1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L722]   COND TRUE   splverifierCounter < 4
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L728]               tmp = __VERIFIER_nondet_int()
[L730]   COND TRUE   \read(tmp)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L442]   COND TRUE   waterLevel < 2
[L443]               waterLevel = waterLevel + 1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L738]               tmp___0 = __VERIFIER_nondet_int()
[L740]   COND FALSE  !(\read(tmp___0))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L748]               tmp___2 = __VERIFIER_nondet_int()
[L750]   COND FALSE  !(\read(tmp___2))
[L754]               tmp___1 = __VERIFIER_nondet_int()
[L756]   COND TRUE   \read(tmp___1)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L997]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L1004]              systemActive = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L786]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L793]   COND FALSE  !(\read(systemActive))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L667]               int tmp ;
[L668]               int tmp___0 ;
[L669]               int tmp___1 ;
[L463]               int retValue_acc ;
[L466]               retValue_acc = methaneLevelCritical
[L467]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L673]               tmp = isMethaneLevelCritical()
[L675]   COND FALSE  !(\read(tmp))
[L495]               int retValue_acc ;
[L498]               retValue_acc = waterLevel
[L499]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L679]               tmp___0 = getWaterLevel()
[L681]   COND TRUE   tmp___0 == 2
[L911]               int retValue_acc ;
[L914]               retValue_acc = pumpRunning
[L915]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L683]               tmp___1 = isPumpRunning()
[L685]   COND FALSE  !(\read(tmp___1))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L704]               reach_error()
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - UnprovableResult [Line: 704]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 704]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1799.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 21.9ms, AutomataDifference: 520.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 581 SDtfs, 743 SDslu, 733 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 197.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 100.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 113.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.5ms SsaConstructionTime, 372.6ms SatisfiabilityAnalysisTime, 400.7ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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!
[2021-10-21 19:05:13,830 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0176bd4-6935-46b4-992b-6106a336fab2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...