./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/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_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/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_c5595c9e-ab8c-475d-b6cb-52881f950291/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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 08:57:41,866 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-28 08:57:41,869 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 08:57:41,906 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 08:57:41,907 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 08:57:41,908 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 08:57:41,910 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 08:57:41,913 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 08:57:41,916 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 08:57:41,918 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 08:57:41,919 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 08:57:41,921 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 08:57:41,922 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 08:57:41,923 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 08:57:41,926 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 08:57:41,928 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 08:57:41,929 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 08:57:41,931 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 08:57:41,933 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 08:57:41,936 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 08:57:41,939 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 08:57:41,950 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 08:57:41,952 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 08:57:41,953 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 08:57:41,958 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 08:57:41,965 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 08:57:41,965 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 08:57:41,966 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 08:57:41,968 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 08:57:41,970 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 08:57:41,971 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 08:57:41,972 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 08:57:41,974 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 08:57:41,976 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 08:57:41,978 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 08:57:41,979 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 08:57:41,980 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 08:57:41,980 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 08:57:41,980 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 08:57:41,981 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 08:57:41,982 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 08:57:41,984 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 08:57:42,031 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-28 08:57:42,032 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 08:57:42,036 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 08:57:42,036 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 08:57:42,038 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 08:57:42,038 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-28 08:57:42,038 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-28 08:57:42,039 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 08:57:42,039 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-28 08:57:42,039 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-28 08:57:42,041 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-28 08:57:42,041 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-28 08:57:42,041 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 08:57:42,042 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 08:57:42,042 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 08:57:42,042 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-28 08:57:42,042 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-28 08:57:42,042 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-28 08:57:42,043 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-28 08:57:42,043 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 08:57:42,043 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-28 08:57:42,043 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-28 08:57:42,044 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:57:42,044 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 08:57:42,045 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 08:57:42,045 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 08:57:42,045 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-28 08:57:42,045 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 08:57:42,046 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-28 08:57:42,048 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 08:57:42,048 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 08:57:42,049 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-28 08:57:42,049 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_c5595c9e-ab8c-475d-b6cb-52881f950291/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_c5595c9e-ab8c-475d-b6cb-52881f950291/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 -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f
[2021-10-28 08:57:42,328 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 08:57:42,366 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 08:57:42,369 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 08:57:42,371 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-28 08:57:42,372 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-28 08:57:42,373 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c
[2021-10-28 08:57:42,462 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/data/4d7d088a7/867af6205bcb4d8f9fffb15e9b8192ca/FLAG1aee92e10
[2021-10-28 08:57:43,050 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-28 08:57:43,051 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c
[2021-10-28 08:57:43,068 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/data/4d7d088a7/867af6205bcb4d8f9fffb15e9b8192ca/FLAG1aee92e10
[2021-10-28 08:57:43,359 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/data/4d7d088a7/867af6205bcb4d8f9fffb15e9b8192ca
[2021-10-28 08:57:43,377 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 08:57:43,379 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 08:57:43,381 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 08:57:43,381 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 08:57:43,384 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 08:57:43,385 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:43,386 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c2a6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43, skipping insertion in model container
[2021-10-28 08:57:43,386 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:43,391 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-28 08:57:43,439 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-28 08:57:43,756 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_c5595c9e-ab8c-475d-b6cb-52881f950291/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288]
[2021-10-28 08:57:43,769 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:57:43,779 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-28 08:57:43,901 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_c5595c9e-ab8c-475d-b6cb-52881f950291/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288]
[2021-10-28 08:57:43,902 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 08:57:43,928 INFO  L208         MainTranslator]: Completed translation
[2021-10-28 08:57:43,929 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43 WrapperNode
[2021-10-28 08:57:43,929 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 08:57:43,931 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 08:57:43,931 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 08:57:43,932 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 08:57:43,940 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:43,972 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,054 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 08:57:44,055 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 08:57:44,055 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 08:57:44,055 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 08:57:44,066 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,067 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,084 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,084 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,108 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,120 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,141 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,151 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 08:57:44,152 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 08:57:44,152 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 08:57:44,152 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-28 08:57:44,153 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (1/1) ...
[2021-10-28 08:57:44,176 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 08:57:44,197 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/z3
[2021-10-28 08:57:44,208 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 08:57:44,220 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 08:57:44,254 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 08:57:44,255 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 08:57:44,255 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 08:57:44,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 08:57:45,431 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 08:57:45,431 INFO  L299             CfgBuilder]: Removed 288 assume(true) statements.
[2021-10-28 08:57:45,434 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:45 BoogieIcfgContainer
[2021-10-28 08:57:45,434 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 08:57:45,437 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 08:57:45,437 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 08:57:45,441 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-28 08:57:45,441 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:57:43" (1/3) ...
[2021-10-28 08:57:45,445 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63651b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:45, skipping insertion in model container
[2021-10-28 08:57:45,445 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:43" (2/3) ...
[2021-10-28 08:57:45,445 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63651b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:45, skipping insertion in model container
[2021-10-28 08:57:45,446 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:45" (3/3) ...
[2021-10-28 08:57:45,448 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c
[2021-10-28 08:57:45,459 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 08:57:45,459 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-28 08:57:45,539 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 08:57:45,550 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 08:57:45,551 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-28 08:57:45,579 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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 08:57:45,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-28 08:57:45,590 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:45,591 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 08:57:45,591 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 08:57:45,598 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:45,598 INFO  L85        PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times
[2021-10-28 08:57:45,610 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:45,610 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174528254]
[2021-10-28 08:57:45,611 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:45,612 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:45,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:45,978 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 08:57:45,979 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:45,979 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174528254]
[2021-10-28 08:57:45,980 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174528254] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:45,980 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:45,981 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:57:45,989 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981016303]
[2021-10-28 08:57:45,994 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 08:57:45,994 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:46,008 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 08:57:46,009 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 08:57:46,012 INFO  L87              Difference]: Start difference. First operand  has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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 08:57:46,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:46,054 INFO  L93              Difference]: Finished difference Result 388 states and 593 transitions.
[2021-10-28 08:57:46,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-28 08:57:46,056 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 08:57:46,056 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:46,073 INFO  L225             Difference]: With dead ends: 388
[2021-10-28 08:57:46,074 INFO  L226             Difference]: Without dead ends: 193
[2021-10-28 08:57:46,080 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 08:57:46,100 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 193 states.
[2021-10-28 08:57:46,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193.
[2021-10-28 08:57:46,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 193 states, 190 states have (on average 1.5157894736842106) internal successors, (288), 192 states have internal predecessors, (288), 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 08:57:46,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions.
[2021-10-28 08:57:46,207 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18
[2021-10-28 08:57:46,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:46,209 INFO  L470      AbstractCegarLoop]: Abstraction has 193 states and 288 transitions.
[2021-10-28 08:57:46,210 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 08:57:46,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions.
[2021-10-28 08:57:46,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 08:57:46,212 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:46,213 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 08:57:46,213 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 08:57:46,213 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 08:57:46,214 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:46,214 INFO  L85        PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times
[2021-10-28 08:57:46,215 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:46,215 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580988275]
[2021-10-28 08:57:46,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:46,215 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:46,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:46,400 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 08:57:46,400 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:46,400 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580988275]
[2021-10-28 08:57:46,401 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580988275] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:46,401 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:46,401 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 08:57:46,401 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989414274]
[2021-10-28 08:57:46,403 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:57:46,403 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:46,407 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:57:46,407 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:46,408 INFO  L87              Difference]: Start difference. First operand 193 states and 288 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 08:57:46,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:46,439 INFO  L93              Difference]: Finished difference Result 193 states and 288 transitions.
[2021-10-28 08:57:46,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:57:46,445 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 08:57:46,445 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:46,449 INFO  L225             Difference]: With dead ends: 193
[2021-10-28 08:57:46,450 INFO  L226             Difference]: Without dead ends: 75
[2021-10-28 08:57:46,452 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 08:57:46,454 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2021-10-28 08:57:46,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75.
[2021-10-28 08:57:46,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 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 08:57:46,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions.
[2021-10-28 08:57:46,469 INFO  L78                 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19
[2021-10-28 08:57:46,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:46,469 INFO  L470      AbstractCegarLoop]: Abstraction has 75 states and 111 transitions.
[2021-10-28 08:57:46,470 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 08:57:46,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions.
[2021-10-28 08:57:46,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-28 08:57:46,472 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:46,472 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 08:57:46,473 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 08:57:46,473 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 08:57:46,475 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:46,475 INFO  L85        PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times
[2021-10-28 08:57:46,476 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:46,477 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865198642]
[2021-10-28 08:57:46,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:46,478 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:46,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:46,599 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 08:57:46,600 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:46,601 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865198642]
[2021-10-28 08:57:46,606 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865198642] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:46,606 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:46,606 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 08:57:46,607 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771682547]
[2021-10-28 08:57:46,608 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 08:57:46,608 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:46,610 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 08:57:46,611 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 08:57:46,612 INFO  L87              Difference]: Start difference. First operand 75 states and 111 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 08:57:46,718 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:46,721 INFO  L93              Difference]: Finished difference Result 169 states and 253 transitions.
[2021-10-28 08:57:46,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-28 08:57:46,722 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 08:57:46,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:46,723 INFO  L225             Difference]: With dead ends: 169
[2021-10-28 08:57:46,723 INFO  L226             Difference]: Without dead ends: 100
[2021-10-28 08:57:46,724 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 08:57:46,724 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2021-10-28 08:57:46,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96.
[2021-10-28 08:57:46,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 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 08:57:46,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions.
[2021-10-28 08:57:46,748 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24
[2021-10-28 08:57:46,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:46,748 INFO  L470      AbstractCegarLoop]: Abstraction has 96 states and 143 transitions.
[2021-10-28 08:57:46,748 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 08:57:46,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions.
[2021-10-28 08:57:46,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 08:57:46,755 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:46,755 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 08:57:46,755 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 08:57:46,756 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 08:57:46,756 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:46,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times
[2021-10-28 08:57:46,757 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:46,758 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526189067]
[2021-10-28 08:57:46,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:46,758 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:46,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:46,833 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 08:57:46,833 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:46,834 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526189067]
[2021-10-28 08:57:46,834 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526189067] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:46,834 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:46,834 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 08:57:46,835 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117059845]
[2021-10-28 08:57:46,835 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 08:57:46,835 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:46,836 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 08:57:46,836 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 08:57:46,836 INFO  L87              Difference]: Start difference. First operand 96 states and 143 transitions. Second operand  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 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 08:57:46,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:46,886 INFO  L93              Difference]: Finished difference Result 197 states and 295 transitions.
[2021-10-28 08:57:46,886 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 08:57:46,887 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 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 08:57:46,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:46,888 INFO  L225             Difference]: With dead ends: 197
[2021-10-28 08:57:46,889 INFO  L226             Difference]: Without dead ends: 107
[2021-10-28 08:57:46,892 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 08:57:46,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2021-10-28 08:57:46,902 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105.
[2021-10-28 08:57:46,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 104 states have (on average 1.4423076923076923) internal successors, (150), 104 states have internal predecessors, (150), 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 08:57:46,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions.
[2021-10-28 08:57:46,907 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27
[2021-10-28 08:57:46,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:46,907 INFO  L470      AbstractCegarLoop]: Abstraction has 105 states and 150 transitions.
[2021-10-28 08:57:46,908 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 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 08:57:46,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions.
[2021-10-28 08:57:46,908 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 08:57:46,908 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:46,909 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 08:57:46,909 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 08:57:46,909 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 08:57:46,909 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:46,910 INFO  L85        PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times
[2021-10-28 08:57:46,910 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:46,910 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649339592]
[2021-10-28 08:57:46,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:46,910 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:46,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 08:57:46,983 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 08:57:46,983 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 08:57:46,983 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649339592]
[2021-10-28 08:57:46,983 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649339592] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 08:57:46,984 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 08:57:46,984 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 08:57:46,984 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506381883]
[2021-10-28 08:57:46,984 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 08:57:46,984 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 08:57:46,985 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 08:57:46,985 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 08:57:46,985 INFO  L87              Difference]: Start difference. First operand 105 states and 150 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 08:57:47,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 08:57:47,143 INFO  L93              Difference]: Finished difference Result 533 states and 778 transitions.
[2021-10-28 08:57:47,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-28 08:57:47,144 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 08:57:47,144 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 08:57:47,147 INFO  L225             Difference]: With dead ends: 533
[2021-10-28 08:57:47,147 INFO  L226             Difference]: Without dead ends: 434
[2021-10-28 08:57:47,148 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 08:57:47,149 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 434 states.
[2021-10-28 08:57:47,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 171.
[2021-10-28 08:57:47,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 171 states, 170 states have (on average 1.4058823529411764) internal successors, (239), 170 states have internal predecessors, (239), 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 08:57:47,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 239 transitions.
[2021-10-28 08:57:47,170 INFO  L78                 Accepts]: Start accepts. Automaton has 171 states and 239 transitions. Word has length 27
[2021-10-28 08:57:47,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 08:57:47,170 INFO  L470      AbstractCegarLoop]: Abstraction has 171 states and 239 transitions.
[2021-10-28 08:57:47,171 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 08:57:47,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 171 states and 239 transitions.
[2021-10-28 08:57:47,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 08:57:47,172 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 08:57:47,172 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 08:57:47,173 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 08:57:47,173 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 08:57:47,173 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 08:57:47,174 INFO  L85        PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times
[2021-10-28 08:57:47,174 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 08:57:47,174 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580263849]
[2021-10-28 08:57:47,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 08:57:47,175 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 08:57:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:57:47,280 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 08:57:47,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 08:57:47,423 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 08:57:47,424 INFO  L627         BasicCegarLoop]: Counterexample is feasible
[2021-10-28 08:57:47,425 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:47,427 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:47,428 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 08:57:47,433 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 08:57:47,437 INFO  L731         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2021-10-28 08:57:47,441 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 08:57:47,580 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:57:47 BoogieIcfgContainer
[2021-10-28 08:57:47,580 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 08:57:47,581 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 08:57:47,581 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-28 08:57:47,581 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-28 08:57:47,582 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:45" (3/4) ...
[2021-10-28 08:57:47,584 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-28 08:57:47,702 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/witness.graphml
[2021-10-28 08:57:47,706 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 08:57:47,709 INFO  L168              Benchmark]: Toolchain (without parser) took 4328.34 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 82.8 MB in the beginning and 54.9 MB in the end (delta: 27.9 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,709 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,710 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 549.09 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 82.8 MB in the beginning and 100.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,711 INFO  L168              Benchmark]: Boogie Procedure Inliner took 122.94 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 95.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,711 INFO  L168              Benchmark]: Boogie Preprocessor took 95.97 ms. Allocated memory is still 134.2 MB. Free memory was 95.4 MB in the beginning and 91.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,712 INFO  L168              Benchmark]: RCFGBuilder took 1282.83 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 79.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,712 INFO  L168              Benchmark]: TraceAbstraction took 2143.22 ms. Allocated memory is still 134.2 MB. Free memory was 79.2 MB in the beginning and 66.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,713 INFO  L168              Benchmark]: Witness Printer took 125.70 ms. Allocated memory is still 134.2 MB. Free memory was 66.4 MB in the beginning and 54.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 08:57:47,716 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 549.09 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 82.8 MB in the beginning and 100.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 122.94 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 95.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 95.97 ms. Allocated memory is still 134.2 MB. Free memory was 95.4 MB in the beginning and 91.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1282.83 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 79.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 2143.22 ms. Allocated memory is still 134.2 MB. Free memory was 79.2 MB in the beginning and 66.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB.
 * Witness Printer took 125.70 ms. Allocated memory is still 134.2 MB. Free memory was 66.4 MB in the beginning and 54.9 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: 1023]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L50]                int cleanupTimeShifts  =    4;
[L323]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L597]               int waterLevel  =    1;
[L598]               int methaneLevelCritical  =    0;
[L704]               int pumpRunning  =    0;
[L705]               int systemActive  =    1;
         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]
[L546]               int retValue_acc ;
[L549]               retValue_acc = 1
[L550]               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]
[L951]               int splverifierCounter ;
[L952]               int tmp ;
[L953]               int tmp___0 ;
[L954]               int tmp___1 ;
[L955]               int tmp___2 ;
[L958]               splverifierCounter = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L960]   COND TRUE   1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L962]   COND TRUE   splverifierCounter < 4
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L968]               tmp = __VERIFIER_nondet_int()
[L970]   COND TRUE   \read(tmp)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L615]   COND TRUE   waterLevel < 2
[L616]               waterLevel = waterLevel + 1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L978]               tmp___0 = __VERIFIER_nondet_int()
[L980]   COND FALSE  !(\read(tmp___0))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L988]               tmp___2 = __VERIFIER_nondet_int()
[L990]   COND FALSE  !(\read(tmp___2))
[L996]               tmp___1 = __VERIFIER_nondet_int()
[L998]   COND TRUE   \read(tmp___1)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L930]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L937]               systemActive = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L711]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L718]   COND FALSE  !(\read(systemActive))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L560]               int tmp ;
[L561]               int tmp___0 ;
[L562]               int tmp___1 ;
[L636]               int retValue_acc ;
[L639]               retValue_acc = methaneLevelCritical
[L640]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L566]               tmp = isMethaneLevelCritical()
[L568]   COND FALSE  !(\read(tmp))
[L668]               int retValue_acc ;
[L671]               retValue_acc = waterLevel
[L672]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L572]               tmp___0 = getWaterLevel()
[L574]   COND TRUE   tmp___0 == 2
[L844]               int retValue_acc ;
[L847]               retValue_acc = pumpRunning
[L848]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L576]               tmp___1 = isPumpRunning()
[L578]   COND FALSE  !(\read(tmp___1))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1023]              reach_error()
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - UnprovableResult [Line: 1023]: 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: 1023]: 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, 197 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, 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: 751 SDtfs, 885 SDslu, 457 SDs, 0 SdLazy, 75 SolverSat, 24 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=197occurred in iteration=0, 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, 269 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 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 08:57:47,771 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5595c9e-ab8c-475d-b6cb-52881f950291/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...