./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label56.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 527bcce2
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --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 91e42c16ff11f401cb1a0bb363f1df3f27964ca291eb9a5ac2a88f9cc95fa9e5
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 22:26:51,012 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-21 22:26:51,128 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-21 22:26:51,132 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 22:26:51,133 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 22:26:51,175 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 22:26:51,176 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 22:26:51,177 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 22:26:51,179 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 22:26:51,183 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-21 22:26:51,184 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 22:26:51,185 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 22:26:51,186 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 22:26:51,188 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-21 22:26:51,188 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-21 22:26:51,188 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 22:26:51,189 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-21 22:26:51,189 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-21 22:26:51,190 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-21 22:26:51,190 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-21 22:26:51,190 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-21 22:26:51,191 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 22:26:51,191 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 22:26:51,191 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 22:26:51,192 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-21 22:26:51,192 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-21 22:26:51,193 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-21 22:26:51,193 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 22:26:51,194 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-21 22:26:51,194 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 22:26:51,195 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-21 22:26:51,196 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:26:51,196 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 22:26:51,196 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 22:26:51,196 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 22:26:51,196 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-21 22:26:51,197 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 22:26:51,197 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 22:26:51,197 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 22:26:51,197 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 22:26:51,197 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 22:26:51,198 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 22:26:51,198 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/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_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
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 -> 91e42c16ff11f401cb1a0bb363f1df3f27964ca291eb9a5ac2a88f9cc95fa9e5
[2023-11-21 22:26:51,495 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 22:26:51,527 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 22:26:51,530 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 22:26:51,531 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-21 22:26:51,531 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-21 22:26:51,533 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/eca-rers2012/Problem18_label56.c
[2023-11-21 22:26:54,678 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-21 22:26:55,179 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-21 22:26:55,181 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/sv-benchmarks/c/eca-rers2012/Problem18_label56.c
[2023-11-21 22:26:55,215 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/data/0378f34b3/e86c6e0780f142fd89d7e3726efee96d/FLAGfecaaf03f
[2023-11-21 22:26:55,237 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/data/0378f34b3/e86c6e0780f142fd89d7e3726efee96d
[2023-11-21 22:26:55,243 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 22:26:55,245 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 22:26:55,246 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 22:26:55,247 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 22:26:55,253 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 22:26:55,256 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:55" (1/1) ...
[2023-11-21 22:26:55,257 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5281f09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:55, skipping insertion in model container
[2023-11-21 22:26:55,258 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:55" (1/1) ...
[2023-11-21 22:26:55,398 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:26:55,701 WARN  L240   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_2f390f19-26f6-4d66-96ef-1fb460b04e59/sv-benchmarks/c/eca-rers2012/Problem18_label56.c[5125,5138]
[2023-11-21 22:26:56,628 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:26:56,641 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-21 22:26:56,671 WARN  L240   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_2f390f19-26f6-4d66-96ef-1fb460b04e59/sv-benchmarks/c/eca-rers2012/Problem18_label56.c[5125,5138]
[2023-11-21 22:26:57,106 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:26:57,131 INFO  L206         MainTranslator]: Completed translation
[2023-11-21 22:26:57,132 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57 WrapperNode
[2023-11-21 22:26:57,132 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 22:26:57,133 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 22:26:57,134 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 22:26:57,134 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 22:26:57,141 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,205 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,391 INFO  L138                Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4133
[2023-11-21 22:26:57,391 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 22:26:57,392 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 22:26:57,392 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 22:26:57,392 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 22:26:57,404 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,405 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,429 INFO  L184        PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,594 INFO  L187           HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2]
[2023-11-21 22:26:57,594 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,594 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,818 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,862 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,897 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,910 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,974 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 22:26:57,977 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 22:26:57,977 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 22:26:57,978 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-21 22:26:57,979 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ...
[2023-11-21 22:26:57,986 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:26:57,999 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 22:26:58,014 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 22:26:58,048 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f390f19-26f6-4d66-96ef-1fb460b04e59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 22:26:58,064 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 22:26:58,065 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-21 22:26:58,065 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 22:26:58,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 22:26:58,158 INFO  L240             CfgBuilder]: Building ICFG
[2023-11-21 22:26:58,161 INFO  L266             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 22:27:02,261 INFO  L281             CfgBuilder]: Performing block encoding