./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.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_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg --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 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 08:57:11,833 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-28 08:57:11,835 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 08:57:11,896 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 08:57:11,896 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 08:57:11,902 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 08:57:11,905 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 08:57:11,911 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 08:57:11,914 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 08:57:11,923 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 08:57:11,925 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 08:57:11,927 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 08:57:11,928 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 08:57:11,931 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 08:57:11,933 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 08:57:11,940 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 08:57:11,942 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 08:57:11,943 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 08:57:11,946 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 08:57:11,957 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 08:57:11,959 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 08:57:11,961 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 08:57:11,965 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 08:57:11,967 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 08:57:11,971 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 08:57:11,972 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 08:57:11,972 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 08:57:11,975 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 08:57:11,976 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 08:57:11,978 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 08:57:11,978 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 08:57:11,979 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 08:57:11,982 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 08:57:11,983 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 08:57:11,985 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 08:57:11,986 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 08:57:11,987 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 08:57:11,987 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 08:57:11,987 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 08:57:11,989 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 08:57:11,990 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 08:57:11,991 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 08:57:12,037 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-28 08:57:12,038 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 08:57:12,039 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 08:57:12,039 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 08:57:12,041 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 08:57:12,041 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-28 08:57:12,042 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-28 08:57:12,042 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 08:57:12,042 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-28 08:57:12,043 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-28 08:57:12,044 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-28 08:57:12,044 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-28 08:57:12,045 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 08:57:12,045 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 08:57:12,045 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 08:57:12,046 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-28 08:57:12,046 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-28 08:57:12,046 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-28 08:57:12,046 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-28 08:57:12,047 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 08:57:12,047 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-28 08:57:12,047 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-28 08:57:12,048 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:57:12,048 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 08:57:12,048 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 08:57:12,049 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 08:57:12,049 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-28 08:57:12,049 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 08:57:12,049 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-28 08:57:12,051 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 08:57:12,052 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 08:57:12,052 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-28 08:57:12,052 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_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/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_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg
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 -> 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7
[2021-10-28 08:57:12,364 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 08:57:12,396 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 08:57:12,399 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 08:57:12,400 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-28 08:57:12,401 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-28 08:57:12,402 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c
[2021-10-28 08:57:12,483 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/data/8ff8f591e/f9ab1a8917b840b4b8750b2ffdced7bb/FLAG3bd642034
[2021-10-28 08:57:13,048 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-28 08:57:13,048 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c
[2021-10-28 08:57:13,062 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/data/8ff8f591e/f9ab1a8917b840b4b8750b2ffdced7bb/FLAG3bd642034
[2021-10-28 08:57:13,320 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/data/8ff8f591e/f9ab1a8917b840b4b8750b2ffdced7bb
[2021-10-28 08:57:13,322 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 08:57:13,323 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 08:57:13,327 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 08:57:13,327 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 08:57:13,345 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 08:57:13,346 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:13,347 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de9e290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13, skipping insertion in model container
[2021-10-28 08:57:13,348 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:13,356 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-28 08:57:13,429 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-28 08:57:13,627 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_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618]
[2021-10-28 08:57:13,821 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:57:13,830 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-28 08:57:13,848 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_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618]
[2021-10-28 08:57:13,926 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:57:13,956 INFO  L208         MainTranslator]: Completed translation
[2021-10-28 08:57:13,957 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13 WrapperNode
[2021-10-28 08:57:13,957 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 08:57:13,959 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 08:57:13,959 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 08:57:13,959 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 08:57:13,967 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:13,986 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,048 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 08:57:14,049 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 08:57:14,049 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 08:57:14,049 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 08:57:14,058 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,058 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,065 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,065 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,081 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,091 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,095 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,101 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 08:57:14,102 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 08:57:14,102 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 08:57:14,102 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-28 08:57:14,113 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (1/1) ...
[2021-10-28 08:57:14,139 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:57:14,160 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/z3
[2021-10-28 08:57:14,175 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 08:57:14,187 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 08:57:14,220 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 08:57:14,220 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 08:57:14,220 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 08:57:14,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 08:57:15,329 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 08:57:15,330 INFO  L299             CfgBuilder]: Removed 202 assume(true) statements.
[2021-10-28 08:57:15,332 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:15 BoogieIcfgContainer
[2021-10-28 08:57:15,332 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 08:57:15,334 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 08:57:15,335 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 08:57:15,338 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-28 08:57:15,339 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:57:13" (1/3) ...
[2021-10-28 08:57:15,340 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f511af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:15, skipping insertion in model container
[2021-10-28 08:57:15,340 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:13" (2/3) ...
[2021-10-28 08:57:15,340 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f511af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:15, skipping insertion in model container
[2021-10-28 08:57:15,340 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:15" (3/3) ...
[2021-10-28 08:57:15,342 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c
[2021-10-28 08:57:15,349 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 08:57:15,349 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-28 08:57:15,409 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 08:57:15,416 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 08:57:15,416 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-28 08:57:15,437 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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)
[2021-10-28 08:57:15,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-28 08:57:15,444 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:15,444 INFO  L513         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 08:57:15,445 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:15,451 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:15,451 INFO  L85        PathProgramCache]: Analyzing trace with hash 301971860, now seen corresponding path program 1 times
[2021-10-28 08:57:15,461 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:15,462 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939086867]
[2021-10-28 08:57:15,462 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:15,463 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:15,684 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:15,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 08:57:15,812 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:15,813 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939086867]
[2021-10-28 08:57:15,814 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939086867] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:15,815 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:15,815 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:57:15,825 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606821218]
[2021-10-28 08:57:15,866 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 08:57:15,866 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:15,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 08:57:15,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 08:57:15,884 INFO  L87              Difference]: Start difference. First operand  has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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)
[2021-10-28 08:57:15,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:15,928 INFO  L93              Difference]: Finished difference Result 268 states and 401 transitions.
[2021-10-28 08:57:15,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-28 08:57:15,930 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
[2021-10-28 08:57:15,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:15,940 INFO  L225             Difference]: With dead ends: 268
[2021-10-28 08:57:15,941 INFO  L226             Difference]: Without dead ends: 133
[2021-10-28 08:57:15,944 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 08:57:15,960 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2021-10-28 08:57:15,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133.
[2021-10-28 08:57:15,993 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 130 states have (on average 1.476923076923077) internal successors, (192), 132 states have internal predecessors, (192), 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)
[2021-10-28 08:57:15,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions.
[2021-10-28 08:57:15,997 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18
[2021-10-28 08:57:15,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:15,998 INFO  L470      AbstractCegarLoop]: Abstraction has 133 states and 192 transitions.
[2021-10-28 08:57:15,998 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)
[2021-10-28 08:57:15,998 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions.
[2021-10-28 08:57:16,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 08:57:16,000 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:16,000 INFO  L513         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 08:57:16,001 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 08:57:16,001 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:16,002 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:16,002 INFO  L85        PathProgramCache]: Analyzing trace with hash -609058893, now seen corresponding path program 1 times
[2021-10-28 08:57:16,002 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:16,003 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682392089]
[2021-10-28 08:57:16,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:16,003 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:16,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:16,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 08:57:16,178 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:16,178 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682392089]
[2021-10-28 08:57:16,178 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682392089] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:16,179 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:16,179 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 08:57:16,179 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389215991]
[2021-10-28 08:57:16,181 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:57:16,182 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:16,183 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:57:16,183 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:16,184 INFO  L87              Difference]: Start difference. First operand 133 states and 192 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)
[2021-10-28 08:57:16,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:16,202 INFO  L93              Difference]: Finished difference Result 133 states and 192 transitions.
[2021-10-28 08:57:16,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:57:16,203 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
[2021-10-28 08:57:16,203 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:16,204 INFO  L225             Difference]: With dead ends: 133
[2021-10-28 08:57:16,204 INFO  L226             Difference]: Without dead ends: 55
[2021-10-28 08:57:16,206 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:16,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2021-10-28 08:57:16,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2021-10-28 08:57:16,212 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 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)
[2021-10-28 08:57:16,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions.
[2021-10-28 08:57:16,213 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19
[2021-10-28 08:57:16,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:16,213 INFO  L470      AbstractCegarLoop]: Abstraction has 55 states and 79 transitions.
[2021-10-28 08:57:16,214 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)
[2021-10-28 08:57:16,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions.
[2021-10-28 08:57:16,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-28 08:57:16,215 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:16,215 INFO  L513         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]
[2021-10-28 08:57:16,215 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 08:57:16,216 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:16,216 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:16,216 INFO  L85        PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times
[2021-10-28 08:57:16,217 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:16,217 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080218952]
[2021-10-28 08:57:16,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:16,217 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:16,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:16,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 08:57:16,321 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:16,322 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080218952]
[2021-10-28 08:57:16,325 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080218952] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:16,326 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:16,326 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 08:57:16,326 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615842511]
[2021-10-28 08:57:16,327 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 08:57:16,328 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:16,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 08:57:16,330 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2021-10-28 08:57:16,331 INFO  L87              Difference]: Start difference. First operand 55 states and 79 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)
[2021-10-28 08:57:16,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:16,624 INFO  L93              Difference]: Finished difference Result 178 states and 262 transitions.
[2021-10-28 08:57:16,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-28 08:57:16,625 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
[2021-10-28 08:57:16,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:16,627 INFO  L225             Difference]: With dead ends: 178
[2021-10-28 08:57:16,627 INFO  L226             Difference]: Without dead ends: 129
[2021-10-28 08:57:16,628 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-28 08:57:16,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2021-10-28 08:57:16,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76.
[2021-10-28 08:57:16,658 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 75 states have (on average 1.48) internal successors, (111), 75 states have internal predecessors, (111), 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)
[2021-10-28 08:57:16,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions.
[2021-10-28 08:57:16,672 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24
[2021-10-28 08:57:16,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:16,673 INFO  L470      AbstractCegarLoop]: Abstraction has 76 states and 111 transitions.
[2021-10-28 08:57:16,673 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)
[2021-10-28 08:57:16,674 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions.
[2021-10-28 08:57:16,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-28 08:57:16,675 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:16,675 INFO  L513         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]
[2021-10-28 08:57:16,676 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 08:57:16,676 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:16,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:16,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times
[2021-10-28 08:57:16,677 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:16,678 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621514593]
[2021-10-28 08:57:16,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:16,678 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:16,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:16,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 08:57:16,773 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:16,773 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621514593]
[2021-10-28 08:57:16,773 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621514593] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:16,774 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:16,775 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:57:16,775 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979449931]
[2021-10-28 08:57:16,776 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:57:16,777 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:16,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:57:16,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:16,792 INFO  L87              Difference]: Start difference. First operand 76 states and 111 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)
[2021-10-28 08:57:16,858 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:16,859 INFO  L93              Difference]: Finished difference Result 169 states and 249 transitions.
[2021-10-28 08:57:16,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:57:16,860 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
[2021-10-28 08:57:16,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:16,861 INFO  L225             Difference]: With dead ends: 169
[2021-10-28 08:57:16,862 INFO  L226             Difference]: Without dead ends: 99
[2021-10-28 08:57:16,863 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:16,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2021-10-28 08:57:16,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97.
[2021-10-28 08:57:16,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 96 states have (on average 1.4375) internal successors, (138), 96 states have internal predecessors, (138), 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)
[2021-10-28 08:57:16,879 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions.
[2021-10-28 08:57:16,879 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26
[2021-10-28 08:57:16,880 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:16,880 INFO  L470      AbstractCegarLoop]: Abstraction has 97 states and 138 transitions.
[2021-10-28 08:57:16,880 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)
[2021-10-28 08:57:16,880 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions.
[2021-10-28 08:57:16,881 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 08:57:16,882 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:16,882 INFO  L513         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]
[2021-10-28 08:57:16,882 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 08:57:16,883 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:16,883 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:16,884 INFO  L85        PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times
[2021-10-28 08:57:16,884 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:16,884 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949279775]
[2021-10-28 08:57:16,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:16,885 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:16,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:17,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 08:57:17,008 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:17,008 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949279775]
[2021-10-28 08:57:17,008 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949279775] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:17,009 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:17,009 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 08:57:17,009 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123258437]
[2021-10-28 08:57:17,010 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 08:57:17,010 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:17,013 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 08:57:17,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 08:57:17,014 INFO  L87              Difference]: Start difference. First operand 97 states and 138 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)
[2021-10-28 08:57:17,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:17,174 INFO  L93              Difference]: Finished difference Result 507 states and 739 transitions.
[2021-10-28 08:57:17,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-28 08:57:17,175 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
[2021-10-28 08:57:17,175 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:17,179 INFO  L225             Difference]: With dead ends: 507
[2021-10-28 08:57:17,179 INFO  L226             Difference]: Without dead ends: 416
[2021-10-28 08:57:17,181 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-28 08:57:17,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2021-10-28 08:57:17,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 165.
[2021-10-28 08:57:17,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 165 states, 164 states have (on average 1.4024390243902438) internal successors, (230), 164 states have internal predecessors, (230), 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)
[2021-10-28 08:57:17,210 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions.
[2021-10-28 08:57:17,211 INFO  L78                 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 27
[2021-10-28 08:57:17,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:17,211 INFO  L470      AbstractCegarLoop]: Abstraction has 165 states and 230 transitions.
[2021-10-28 08:57:17,211 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)
[2021-10-28 08:57:17,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions.
[2021-10-28 08:57:17,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 08:57:17,213 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:17,214 INFO  L513         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]
[2021-10-28 08:57:17,214 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 08:57:17,214 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 08:57:17,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:17,215 INFO  L85        PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times
[2021-10-28 08:57:17,215 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:17,215 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909837448]
[2021-10-28 08:57:17,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:17,216 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:17,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:57:17,295 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 08:57:17,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:57:17,406 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 08:57:17,406 INFO  L627         BasicCegarLoop]: Counterexample is feasible
[2021-10-28 08:57:17,407 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:17,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:17,410 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:17,410 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 08:57:17,413 INFO  L731         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2021-10-28 08:57:17,417 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 08:57:17,506 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:57:17 BoogieIcfgContainer
[2021-10-28 08:57:17,506 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 08:57:17,507 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 08:57:17,507 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-28 08:57:17,507 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-28 08:57:17,508 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:15" (3/4) ...
[2021-10-28 08:57:17,510 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-28 08:57:17,581 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/witness.graphml
[2021-10-28 08:57:17,582 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 08:57:17,583 INFO  L168              Benchmark]: Toolchain (without parser) took 4259.03 ms. Allocated memory was 86.0 MB in the beginning and 144.7 MB in the end (delta: 58.7 MB). Free memory was 49.2 MB in the beginning and 103.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,584 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,584 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 630.30 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.0 MB in the beginning and 73.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,585 INFO  L168              Benchmark]: Boogie Procedure Inliner took 89.44 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 68.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,585 INFO  L168              Benchmark]: Boogie Preprocessor took 52.42 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 66.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,585 INFO  L168              Benchmark]: RCFGBuilder took 1230.72 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 58.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,586 INFO  L168              Benchmark]: TraceAbstraction took 2171.85 ms. Allocated memory was 104.9 MB in the beginning and 144.7 MB in the end (delta: 39.8 MB). Free memory was 58.0 MB in the beginning and 114.7 MB in the end (delta: -56.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,586 INFO  L168              Benchmark]: Witness Printer took 74.92 ms. Allocated memory is still 144.7 MB. Free memory was 114.6 MB in the beginning and 103.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:17,589 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 630.30 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.0 MB in the beginning and 73.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 89.44 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 68.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 52.42 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 66.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1230.72 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 58.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 2171.85 ms. Allocated memory was 104.9 MB in the beginning and 144.7 MB in the end (delta: 39.8 MB). Free memory was 58.0 MB in the beginning and 114.7 MB in the end (delta: -56.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB.
 * Witness Printer took 74.92 ms. Allocated memory is still 144.7 MB. Free memory was 114.6 MB in the beginning and 103.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 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: 54]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L59]               int cleanupTimeShifts  =    4;
[L367]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L639]              int pumpRunning  =    0;
[L640]              int systemActive  =    1;
[L851]              int waterLevel  =    1;
[L852]              int methaneLevelCritical  =    0;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L140]              int retValue_acc ;
[L141]              int tmp ;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L189]              int retValue_acc ;
[L192]              retValue_acc = 1
[L193]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L147]              tmp = valid_product()
[L149]  COND TRUE   \read(tmp)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L566]              int splverifierCounter ;
[L567]              int tmp ;
[L568]              int tmp___0 ;
[L569]              int tmp___1 ;
[L570]              int tmp___2 ;
[L573]              splverifierCounter = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L575]  COND TRUE   1
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L577]  COND TRUE   splverifierCounter < 4
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L583]              tmp = __VERIFIER_nondet_int()
[L585]  COND TRUE   \read(tmp)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L869]  COND TRUE   waterLevel < 2
[L870]              waterLevel = waterLevel + 1
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L593]              tmp___0 = __VERIFIER_nondet_int()
[L595]  COND FALSE  !(\read(tmp___0))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L603]              tmp___2 = __VERIFIER_nondet_int()
[L605]  COND FALSE  !(\read(tmp___2))
[L609]              tmp___1 = __VERIFIER_nondet_int()
[L611]  COND TRUE   \read(tmp___1)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L838]  COND FALSE  !(\read(pumpRunning))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L845]              systemActive = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L647]  COND FALSE  !(\read(pumpRunning))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L654]  COND FALSE  !(\read(systemActive))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L946]              int tmp ;
[L947]              int tmp___0 ;
[L948]              int tmp___1 ;
[L890]              int retValue_acc ;
[L893]              retValue_acc = methaneLevelCritical
[L894]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L952]              tmp = isMethaneLevelCritical()
[L954]  COND FALSE  !(\read(tmp))
[L922]              int retValue_acc ;
[L925]              retValue_acc = waterLevel
[L926]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L958]              tmp___0 = getWaterLevel()
[L960]  COND TRUE   tmp___0 == 2
[L771]              int retValue_acc ;
[L774]              retValue_acc = pumpRunning
[L775]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L962]              tmp___1 = isPumpRunning()
[L964]  COND FALSE  !(\read(tmp___1))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L54]               reach_error()
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - UnprovableResult [Line: 54]: 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: 54]: 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, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 719 SDslu, 708 SDs, 0 SdLazy, 79 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 306 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s 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!
[2021-10-28 08:57:17,637 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7faeb0ed-b029-4729-a46f-7c6b0299a6ab/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...