./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem19_label03.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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem19_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/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 26e05216e875976d2a927f5405c2e5bc5a3ea5afc4bbe64c3ca3f67a96ae3961 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:22,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:22,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:52:22,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:22,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:22,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:22,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:22,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:22,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:22,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:22,727 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:22,728 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:22,729 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:22,730 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:22,731 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:22,731 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:22,732 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:22,733 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:22,734 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:22,735 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:22,736 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:22,737 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:22,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:22,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:22,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:52:22,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:22,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:52:22,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:22,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:22,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:22,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:22,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:52:22,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:22,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:22,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:22,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:22,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:22,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:22,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:22,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:22,752 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:22,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:22,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:22,753 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:22,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:22,754 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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26e05216e875976d2a927f5405c2e5bc5a3ea5afc4bbe64c3ca3f67a96ae3961 [2023-11-19 04:52:23,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:23,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:23,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:23,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:23,100 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:23,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/eca-rers2012/Problem19_label03.c [2023-11-19 04:52:26,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:27,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:27,245 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/sv-benchmarks/c/eca-rers2012/Problem19_label03.c [2023-11-19 04:52:27,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/data/8297743af/8eb1606e444c4edaaa1a3b6be3abc5e1/FLAGafc9f5597 [2023-11-19 04:52:27,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/data/8297743af/8eb1606e444c4edaaa1a3b6be3abc5e1 [2023-11-19 04:52:27,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:27,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:27,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:27,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:27,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:27,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:27" (1/1) ... [2023-11-19 04:52:27,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59360204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:27, skipping insertion in model container [2023-11-19 04:52:27,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:27" (1/1) ... [2023-11-19 04:52:27,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:28,042 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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/sv-benchmarks/c/eca-rers2012/Problem19_label03.c[7444,7457] [2023-11-19 04:52:30,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:30,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:30,085 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_c9cc5612-ba57-47d4-a722-e9c44e0135d7/sv-benchmarks/c/eca-rers2012/Problem19_label03.c[7444,7457] [2023-11-19 04:52:31,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:31,286 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:31,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31 WrapperNode [2023-11-19 04:52:31,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:31,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:31,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:31,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:31,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:31,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:32,672 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9426 [2023-11-19 04:52:32,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:32,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:32,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:32,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:32,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:32,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:32,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:32,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:33,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:33,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:33,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:33,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:31" (1/1) ... [2023-11-19 04:52:33,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:33,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:33,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:33,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cc5612-ba57-47d4-a722-e9c44e0135d7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:34,067 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:34,070 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:44,693 INFO L277 CfgBuilder]: Performing block encoding