./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91 --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 0b67ef9d1645b11da74873e5a9143e8d80cf62da9f17abcc8f6ff8d943da8064 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:50:00,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:00,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:50:00,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:00,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:00,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:00,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:00,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:00,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:00,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:00,779 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:00,780 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:00,780 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:00,781 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:50:00,782 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:00,783 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:00,783 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:50:00,784 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:50:00,784 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:00,785 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:50:00,786 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:50:00,786 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:50:00,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:00,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:00,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:50:00,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:50:00,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:50:00,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:00,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:00,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:00,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:00,792 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:50:00,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:00,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:00,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:00,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:50:00,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:00,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:00,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:00,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:00,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:00,798 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:50:00,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:50:00,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:00,800 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:00,800 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:00,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:00,801 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_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b67ef9d1645b11da74873e5a9143e8d80cf62da9f17abcc8f6ff8d943da8064 [2023-11-24 23:50:01,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:01,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:01,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:01,188 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:01,189 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:01,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i [2023-11-24 23:50:04,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:05,219 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:05,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i [2023-11-24 23:50:05,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/data/8a824d459/d9448da83e1c4700be1d95857811d4f6/FLAGf19a3213b [2023-11-24 23:50:05,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/data/8a824d459/d9448da83e1c4700be1d95857811d4f6 [2023-11-24 23:50:05,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:05,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:05,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:05,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:05,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:05,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:05" (1/1) ... [2023-11-24 23:50:05,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5397ea61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:05, skipping insertion in model container [2023-11-24 23:50:05,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:05" (1/1) ... [2023-11-24 23:50:05,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:50:08,422 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_f7e616e2-f079-43d5-8bc9-565945419f31/sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i[64739,64752] [2023-11-24 23:50:09,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:12,034 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:50:12,077 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_f7e616e2-f079-43d5-8bc9-565945419f31/sv-benchmarks/c/neural-networks/dubinsrejoin_41_safe.c-amalgamation.i[64739,64752] [2023-11-24 23:50:12,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:15,361 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:50:15,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15 WrapperNode [2023-11-24 23:50:15,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:15,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:15,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:50:15,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:50:15,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:16,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:20,080 INFO L138 Inliner]: procedures = 622, calls = 70766, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 71145 [2023-11-24 23:50:20,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:20,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:50:20,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:50:20,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:50:20,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:20,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:20,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:20,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:23,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:23,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:23,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:23,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:24,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:50:24,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:50:24,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:50:24,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:50:24,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:15" (1/1) ... [2023-11-24 23:50:24,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:24,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:24,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:50:24,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e616e2-f079-43d5-8bc9-565945419f31/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:50:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:50:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:50:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:50:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:50:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:50:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:50:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:50:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:50:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:50:24,454 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:50:24,457 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation