./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 08:59:39,922 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-28 08:59:39,925 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 08:59:39,989 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 08:59:39,989 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 08:59:39,995 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 08:59:39,996 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 08:59:40,002 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 08:59:40,004 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 08:59:40,012 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 08:59:40,013 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 08:59:40,015 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 08:59:40,016 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 08:59:40,019 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 08:59:40,021 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 08:59:40,027 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 08:59:40,030 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 08:59:40,033 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 08:59:40,035 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 08:59:40,040 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 08:59:40,044 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 08:59:40,045 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 08:59:40,049 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 08:59:40,050 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 08:59:40,057 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 08:59:40,058 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 08:59:40,058 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 08:59:40,060 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 08:59:40,061 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 08:59:40,062 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 08:59:40,063 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 08:59:40,064 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 08:59:40,066 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 08:59:40,067 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 08:59:40,069 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 08:59:40,070 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 08:59:40,071 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 08:59:40,071 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 08:59:40,071 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 08:59:40,072 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 08:59:40,073 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 08:59:40,074 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 08:59:40,114 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-28 08:59:40,115 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 08:59:40,115 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 08:59:40,115 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 08:59:40,116 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 08:59:40,117 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-28 08:59:40,117 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-28 08:59:40,117 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 08:59:40,118 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-28 08:59:40,118 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-28 08:59:40,118 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-28 08:59:40,118 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-28 08:59:40,119 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 08:59:40,119 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 08:59:40,119 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 08:59:40,119 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-28 08:59:40,119 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-28 08:59:40,120 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-28 08:59:40,120 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-28 08:59:40,120 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 08:59:40,120 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-28 08:59:40,121 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-28 08:59:40,121 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:59:40,121 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 08:59:40,122 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 08:59:40,122 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 08:59:40,122 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-28 08:59:40,122 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 08:59:40,123 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-28 08:59:40,123 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 08:59:40,123 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 08:59:40,123 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-28 08:59:40,124 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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/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 -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c
[2021-10-28 08:59:40,379 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 08:59:40,407 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 08:59:40,410 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 08:59:40,412 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-28 08:59:40,413 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-28 08:59:40,414 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c
[2021-10-28 08:59:40,495 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/data/fe1c5ebc6/455a866ea65b4088a79b4d668e07fe8f/FLAG661e279b4
[2021-10-28 08:59:41,051 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-28 08:59:41,052 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c
[2021-10-28 08:59:41,076 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/data/fe1c5ebc6/455a866ea65b4088a79b4d668e07fe8f/FLAG661e279b4
[2021-10-28 08:59:41,350 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/data/fe1c5ebc6/455a866ea65b4088a79b4d668e07fe8f
[2021-10-28 08:59:41,353 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 08:59:41,357 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 08:59:41,363 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 08:59:41,363 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 08:59:41,367 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 08:59:41,369 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:41" (1/1) ...
[2021-10-28 08:59:41,373 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b1c9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:41, skipping insertion in model container
[2021-10-28 08:59:41,373 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:41" (1/1) ...
[2021-10-28 08:59:41,383 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-28 08:59:41,479 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-28 08:59:41,722 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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949]
[2021-10-28 08:59:41,903 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:59:41,927 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-28 08:59:41,971 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_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949]
[2021-10-28 08:59:42,053 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:59:42,078 INFO  L208         MainTranslator]: Completed translation
[2021-10-28 08:59:42,078 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42 WrapperNode
[2021-10-28 08:59:42,079 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 08:59:42,080 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 08:59:42,081 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 08:59:42,081 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 08:59:42,091 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,111 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,175 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 08:59:42,176 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 08:59:42,176 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 08:59:42,177 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 08:59:42,193 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,194 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,200 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,201 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,217 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,227 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,231 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,238 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 08:59:42,239 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 08:59:42,239 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 08:59:42,239 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-28 08:59:42,243 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (1/1) ...
[2021-10-28 08:59:42,255 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:59:42,273 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/z3
[2021-10-28 08:59:42,299 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 08:59:42,314 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 08:59:42,350 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 08:59:42,350 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 08:59:42,350 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 08:59:42,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 08:59:43,586 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 08:59:43,587 INFO  L299             CfgBuilder]: Removed 168 assume(true) statements.
[2021-10-28 08:59:43,590 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:43 BoogieIcfgContainer
[2021-10-28 08:59:43,590 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 08:59:43,593 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 08:59:43,593 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 08:59:43,597 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-28 08:59:43,597 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:59:41" (1/3) ...
[2021-10-28 08:59:43,598 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9be564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:59:43, skipping insertion in model container
[2021-10-28 08:59:43,599 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:42" (2/3) ...
[2021-10-28 08:59:43,599 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9be564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:59:43, skipping insertion in model container
[2021-10-28 08:59:43,599 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:43" (3/3) ...
[2021-10-28 08:59:43,601 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c
[2021-10-28 08:59:43,612 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 08:59:43,613 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-28 08:59:43,691 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 08:59:43,700 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 08:59:43,700 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-28 08:59:43,726 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 08:59:43,742 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-28 08:59:43,742 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:43,743 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 08:59:43,744 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 08:59:43,751 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:43,751 INFO  L85        PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times
[2021-10-28 08:59:43,759 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:43,759 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501232005]
[2021-10-28 08:59:43,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:43,761 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:44,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:59:44,152 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 08:59:44,152 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:59:44,153 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501232005]
[2021-10-28 08:59:44,154 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501232005] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:59:44,154 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:59:44,154 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:59:44,156 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275793148]
[2021-10-28 08:59:44,176 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 08:59:44,177 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:59:44,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 08:59:44,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 08:59:44,196 INFO  L87              Difference]: Start difference. First operand  has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 08:59:44,232 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:59:44,232 INFO  L93              Difference]: Finished difference Result 232 states and 353 transitions.
[2021-10-28 08:59:44,232 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-28 08:59:44,234 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 08:59:44,234 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:59:44,247 INFO  L225             Difference]: With dead ends: 232
[2021-10-28 08:59:44,247 INFO  L226             Difference]: Without dead ends: 115
[2021-10-28 08:59:44,251 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 08:59:44,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2021-10-28 08:59:44,306 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2021-10-28 08:59:44,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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 08:59:44,311 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions.
[2021-10-28 08:59:44,313 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18
[2021-10-28 08:59:44,313 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:59:44,313 INFO  L470      AbstractCegarLoop]: Abstraction has 115 states and 168 transitions.
[2021-10-28 08:59:44,314 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 08:59:44,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions.
[2021-10-28 08:59:44,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 08:59:44,316 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:44,316 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 08:59:44,316 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 08:59:44,317 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 08:59:44,318 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:44,318 INFO  L85        PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times
[2021-10-28 08:59:44,318 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:44,318 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063554121]
[2021-10-28 08:59:44,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:44,319 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:44,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:59:44,515 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 08:59:44,516 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:59:44,516 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063554121]
[2021-10-28 08:59:44,517 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063554121] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:59:44,517 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:59:44,517 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 08:59:44,518 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368594059]
[2021-10-28 08:59:44,520 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:59:44,526 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:59:44,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:59:44,528 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:59:44,528 INFO  L87              Difference]: Start difference. First operand 115 states and 168 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 08:59:44,551 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:59:44,555 INFO  L93              Difference]: Finished difference Result 115 states and 168 transitions.
[2021-10-28 08:59:44,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:59:44,557 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 08:59:44,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:59:44,561 INFO  L225             Difference]: With dead ends: 115
[2021-10-28 08:59:44,562 INFO  L226             Difference]: Without dead ends: 49
[2021-10-28 08:59:44,564 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 08:59:44,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2021-10-28 08:59:44,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2021-10-28 08:59:44,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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 08:59:44,584 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions.
[2021-10-28 08:59:44,586 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19
[2021-10-28 08:59:44,587 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:59:44,587 INFO  L470      AbstractCegarLoop]: Abstraction has 49 states and 71 transitions.
[2021-10-28 08:59:44,588 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 08:59:44,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions.
[2021-10-28 08:59:44,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-28 08:59:44,592 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:44,593 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 08:59:44,594 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 08:59:44,595 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 08:59:44,595 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:44,601 INFO  L85        PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times
[2021-10-28 08:59:44,601 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:44,602 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490912624]
[2021-10-28 08:59:44,602 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:44,602 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:44,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:59:44,779 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 08:59:44,780 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:59:44,781 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490912624]
[2021-10-28 08:59:44,785 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490912624] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:59:44,786 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:59:44,786 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 08:59:44,787 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746715231]
[2021-10-28 08:59:44,787 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 08:59:44,788 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:59:44,790 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 08:59:44,790 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 08:59:44,790 INFO  L87              Difference]: Start difference. First operand 49 states and 71 transitions. Second operand  has 5 states, 5 states have (on average 4.8) 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 08:59:44,907 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:59:44,912 INFO  L93              Difference]: Finished difference Result 117 states and 173 transitions.
[2021-10-28 08:59:44,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-28 08:59:44,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) 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 08:59:44,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:59:44,915 INFO  L225             Difference]: With dead ends: 117
[2021-10-28 08:59:44,917 INFO  L226             Difference]: Without dead ends: 74
[2021-10-28 08:59:44,918 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 08:59:44,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2021-10-28 08:59:44,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70.
[2021-10-28 08:59:44,956 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 69 states have internal predecessors, (103), 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 08:59:44,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions.
[2021-10-28 08:59:44,958 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24
[2021-10-28 08:59:44,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:59:44,959 INFO  L470      AbstractCegarLoop]: Abstraction has 70 states and 103 transitions.
[2021-10-28 08:59:44,959 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) 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 08:59:44,959 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions.
[2021-10-28 08:59:44,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-28 08:59:44,961 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:44,961 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 08:59:44,961 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 08:59:44,962 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 08:59:44,962 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:44,963 INFO  L85        PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times
[2021-10-28 08:59:44,963 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:44,963 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682609220]
[2021-10-28 08:59:44,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:44,964 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:44,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:59:45,061 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 08:59:45,061 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:59:45,061 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682609220]
[2021-10-28 08:59:45,062 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682609220] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:59:45,062 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:59:45,062 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:59:45,062 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362518406]
[2021-10-28 08:59:45,063 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:59:45,063 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:59:45,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:59:45,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:59:45,064 INFO  L87              Difference]: Start difference. First operand 70 states and 103 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 08:59:45,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:59:45,116 INFO  L93              Difference]: Finished difference Result 157 states and 233 transitions.
[2021-10-28 08:59:45,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:59:45,117 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 08:59:45,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:59:45,118 INFO  L225             Difference]: With dead ends: 157
[2021-10-28 08:59:45,119 INFO  L226             Difference]: Without dead ends: 93
[2021-10-28 08:59:45,124 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 08:59:45,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2021-10-28 08:59:45,141 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91.
[2021-10-28 08:59:45,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 90 states have (on average 1.4444444444444444) internal successors, (130), 90 states have internal predecessors, (130), 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 08:59:45,147 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions.
[2021-10-28 08:59:45,147 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26
[2021-10-28 08:59:45,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:59:45,148 INFO  L470      AbstractCegarLoop]: Abstraction has 91 states and 130 transitions.
[2021-10-28 08:59:45,148 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 08:59:45,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions.
[2021-10-28 08:59:45,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 08:59:45,154 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:45,154 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 08:59:45,154 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 08:59:45,155 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 08:59:45,156 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:45,156 INFO  L85        PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times
[2021-10-28 08:59:45,156 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:45,157 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267759989]
[2021-10-28 08:59:45,159 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:45,159 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:45,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:59:45,282 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 08:59:45,283 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:59:45,283 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267759989]
[2021-10-28 08:59:45,283 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267759989] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:59:45,283 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:59:45,284 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 08:59:45,284 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630146379]
[2021-10-28 08:59:45,284 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 08:59:45,285 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:59:45,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 08:59:45,286 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 08:59:45,286 INFO  L87              Difference]: Start difference. First operand 91 states and 130 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 08:59:45,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:59:45,446 INFO  L93              Difference]: Finished difference Result 474 states and 695 transitions.
[2021-10-28 08:59:45,447 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-28 08:59:45,447 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 08:59:45,447 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:59:45,453 INFO  L225             Difference]: With dead ends: 474
[2021-10-28 08:59:45,453 INFO  L226             Difference]: Without dead ends: 389
[2021-10-28 08:59:45,454 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 08:59:45,456 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2021-10-28 08:59:45,505 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156.
[2021-10-28 08:59:45,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 155 states have (on average 1.4064516129032258) internal successors, (218), 155 states have internal predecessors, (218), 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 08:59:45,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions.
[2021-10-28 08:59:45,507 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27
[2021-10-28 08:59:45,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:59:45,508 INFO  L470      AbstractCegarLoop]: Abstraction has 156 states and 218 transitions.
[2021-10-28 08:59:45,508 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 08:59:45,508 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions.
[2021-10-28 08:59:45,509 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 08:59:45,509 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:59:45,510 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 08:59:45,510 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 08:59:45,510 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 08:59:45,511 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:59:45,511 INFO  L85        PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times
[2021-10-28 08:59:45,511 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:59:45,511 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748917076]
[2021-10-28 08:59:45,511 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:59:45,512 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:59:45,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:59:45,581 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 08:59:45,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:59:45,736 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 08:59:45,736 INFO  L627         BasicCegarLoop]: Counterexample is feasible
[2021-10-28 08:59:45,737 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:59:45,742 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:59:45,743 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:59:45,749 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 08:59:45,753 INFO  L731         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2021-10-28 08:59:45,757 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 08:59:45,892 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:59:45 BoogieIcfgContainer
[2021-10-28 08:59:45,893 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 08:59:45,893 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 08:59:45,893 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-28 08:59:45,894 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-28 08:59:45,894 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:43" (3/4) ...
[2021-10-28 08:59:45,896 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-28 08:59:45,983 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/witness.graphml
[2021-10-28 08:59:45,984 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 08:59:45,986 INFO  L168              Benchmark]: Toolchain (without parser) took 4628.07 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.4 MB in the beginning and 71.6 MB in the end (delta: -134.5 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,987 INFO  L168              Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,987 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 716.68 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.1 MB in the beginning and 92.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,988 INFO  L168              Benchmark]: Boogie Procedure Inliner took 95.31 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 88.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,989 INFO  L168              Benchmark]: Boogie Preprocessor took 61.64 ms. Allocated memory is still 125.8 MB. Free memory was 88.3 MB in the beginning and 86.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,989 INFO  L168              Benchmark]: RCFGBuilder took 1351.38 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 94.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,990 INFO  L168              Benchmark]: TraceAbstraction took 2299.94 ms. Allocated memory is still 125.8 MB. Free memory was 93.7 MB in the beginning and 83.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,990 INFO  L168              Benchmark]: Witness Printer took 90.76 ms. Allocated memory is still 125.8 MB. Free memory was 83.0 MB in the beginning and 71.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 08:59:45,994 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 716.68 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.1 MB in the beginning and 92.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 95.31 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 88.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 61.64 ms. Allocated memory is still 125.8 MB. Free memory was 88.3 MB in the beginning and 86.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1351.38 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 94.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 2299.94 ms. Allocated memory is still 125.8 MB. Free memory was 93.7 MB in the beginning and 83.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB.
 * Witness Printer took 90.76 ms. Allocated memory is still 125.8 MB. Free memory was 83.0 MB in the beginning and 71.6 MB in the end (delta: 11.4 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: 231]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L50]               int cleanupTimeShifts  =    4;
[L239]              int waterLevel  =    1;
[L240]              int methaneLevelCritical  =    0;
[L337]              int pumpRunning  =    0;
[L338]              int systemActive  =    1;
[L776]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L131]              int retValue_acc ;
[L132]              int tmp ;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L180]              int retValue_acc ;
[L183]              retValue_acc = 1
[L184]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L138]              tmp = valid_product()
[L140]  COND TRUE   \read(tmp)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L539]              int splverifierCounter ;
[L540]              int tmp ;
[L541]              int tmp___0 ;
[L542]              int tmp___1 ;
[L543]              int tmp___2 ;
[L546]              splverifierCounter = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L548]  COND TRUE   1
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L550]  COND TRUE   splverifierCounter < 4
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L556]              tmp = __VERIFIER_nondet_int()
[L558]  COND TRUE   \read(tmp)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L257]  COND TRUE   waterLevel < 2
[L258]              waterLevel = waterLevel + 1
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L566]              tmp___0 = __VERIFIER_nondet_int()
[L568]  COND FALSE  !(\read(tmp___0))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L576]              tmp___2 = __VERIFIER_nondet_int()
[L578]  COND FALSE  !(\read(tmp___2))
[L584]              tmp___1 = __VERIFIER_nondet_int()
[L586]  COND TRUE   \read(tmp___1)
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L518]  COND FALSE  !(\read(pumpRunning))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L525]              systemActive = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L344]  COND FALSE  !(\read(pumpRunning))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L351]  COND FALSE  !(\read(systemActive))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L194]              int tmp ;
[L195]              int tmp___0 ;
[L196]              int tmp___1 ;
[L278]              int retValue_acc ;
[L281]              retValue_acc = methaneLevelCritical
[L282]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L200]              tmp = isMethaneLevelCritical()
[L202]  COND FALSE  !(\read(tmp))
[L310]              int retValue_acc ;
[L313]              retValue_acc = waterLevel
[L314]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L206]              tmp___0 = getWaterLevel()
[L208]  COND TRUE   tmp___0 == 2
[L451]              int retValue_acc ;
[L454]              retValue_acc = pumpRunning
[L455]              return (retValue_acc);
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L210]              tmp___1 = isPumpRunning()
[L212]  COND FALSE  !(\read(tmp___1))
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L231]              reach_error()
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - UnprovableResult [Line: 231]: 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: 231]: 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, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 652 SDslu, 357 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 239 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 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 08:59:46,052 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f7eeb-5a02-4b1b-b388-6fa9da4de77a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...