./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/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_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/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_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/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 a6fe2492e6625b8197ec02c92b2531b1f71f91a1bb5aa875b34eccb40967800d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:20,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:20,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:28:20,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:20,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:20,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:20,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:20,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:20,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:28:21,000 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:28:21,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:21,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:21,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:21,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:21,004 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:21,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:21,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:21,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:21,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:21,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:21,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:21,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:21,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:21,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:21,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:21,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:21,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:21,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:21,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:21,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:21,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:21,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:21,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:21,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:21,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:21,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:28:21,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:28:21,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:21,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:21,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:21,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:21,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:21,017 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_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fe2492e6625b8197ec02c92b2531b1f71f91a1bb5aa875b34eccb40967800d [2023-11-21 22:28:21,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:21,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:21,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:21,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:21,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:21,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/eca-rers2012/Problem18_label54.c [2023-11-21 22:28:24,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:25,026 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:25,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/sv-benchmarks/c/eca-rers2012/Problem18_label54.c [2023-11-21 22:28:25,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/data/b5e2c7a5f/16069066595744c7b4e145df38a275a4/FLAG8d663a29b [2023-11-21 22:28:25,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/data/b5e2c7a5f/16069066595744c7b4e145df38a275a4 [2023-11-21 22:28:25,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:25,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:25,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:25,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:25,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:25,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:25" (1/1) ... [2023-11-21 22:28:25,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bb694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:25, skipping insertion in model container [2023-11-21 22:28:25,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:25" (1/1) ... [2023-11-21 22:28:25,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:25,934 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_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/sv-benchmarks/c/eca-rers2012/Problem18_label54.c[3783,3796] [2023-11-21 22:28:26,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:26,935 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:26,975 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_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/sv-benchmarks/c/eca-rers2012/Problem18_label54.c[3783,3796] [2023-11-21 22:28:27,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:27,530 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:27,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27 WrapperNode [2023-11-21 22:28:27,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:27,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:27,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:27,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:27,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:27,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:27,903 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4133 [2023-11-21 22:28:27,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:27,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:27,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:27,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:27,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:27,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:27,956 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,113 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:28:28,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:28,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:28,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:28,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:28,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:27" (1/1) ... [2023-11-21 22:28:28,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:28,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:28,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:28,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a44f29-636a-4b5b-8c52-01e9c7d1ad57/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:28:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:28,522 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:28,524 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:33,012 INFO L281 CfgBuilder]: Performing block encoding