./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1cbdf83c230cb7b5e875433a1d81cdf13003742b706b294fab4c2a4e0869f21 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:50,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:51,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:48:51,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:51,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:51,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:51,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:51,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:51,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:51,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:51,094 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:51,095 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:51,096 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:51,097 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:48:51,098 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:51,098 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:51,099 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:48:51,100 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:48:51,100 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:51,101 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:48:51,101 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:48:51,102 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:48:51,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:51,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:48:51,104 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:51,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:48:51,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:51,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:51,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:48:51,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:51,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:48:51,108 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:51,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:48:51,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:51,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:51,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:51,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:51,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:51,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:51,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:48:51,111 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:48:51,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:48:51,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:48:51,112 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:51,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:51,113 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1cbdf83c230cb7b5e875433a1d81cdf13003742b706b294fab4c2a4e0869f21 [2023-11-19 04:48:51,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:51,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:51,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:51,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:51,447 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:51,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/eca-rers2012/Problem18_label34.c [2023-11-19 04:48:54,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:54,950 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:54,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/sv-benchmarks/c/eca-rers2012/Problem18_label34.c [2023-11-19 04:48:54,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/data/ca539c527/82c35d0de356411384481c28e1c85653/FLAGe7b412472 [2023-11-19 04:48:54,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/data/ca539c527/82c35d0de356411384481c28e1c85653 [2023-11-19 04:48:55,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:55,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:55,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:55,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:55,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:55,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:55" (1/1) ... [2023-11-19 04:48:55,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322d1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:55, skipping insertion in model container [2023-11-19 04:48:55,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:55" (1/1) ... [2023-11-19 04:48:55,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:55,332 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_d9eae043-4523-4afb-aaef-adea6a2e18bf/sv-benchmarks/c/eca-rers2012/Problem18_label34.c[1169,1182] [2023-11-19 04:48:56,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:56,349 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:56,363 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_d9eae043-4523-4afb-aaef-adea6a2e18bf/sv-benchmarks/c/eca-rers2012/Problem18_label34.c[1169,1182] [2023-11-19 04:48:56,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:56,810 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:56,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56 WrapperNode [2023-11-19 04:48:56,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:56,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:56,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:56,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:56,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:56,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,066 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4133 [2023-11-19 04:48:57,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:57,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:57,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:57,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:57,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:57,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:57,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:57,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:57,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:56" (1/1) ... [2023-11-19 04:48:57,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:57,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:57,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:57,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9eae043-4523-4afb-aaef-adea6a2e18bf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:57,441 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:57,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:49:01,376 INFO L277 CfgBuilder]: Performing block encoding