./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i --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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/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 18e93ea431e83188bc36b5e920f02065de4d876f2ec76df16cf4e34ae99f6b21 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:14,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:14,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:17:14,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:14,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:14,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:14,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:14,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:14,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:14,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:14,585 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:14,585 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:14,586 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:14,587 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:14,588 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:14,588 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:14,589 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:14,589 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:14,589 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:14,590 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:14,591 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:14,592 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:14,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:14,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:14,594 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:14,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:14,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:14,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:14,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:14,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:14,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:14,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:14,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:14,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:14,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:14,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:14,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:14,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:14,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:14,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:14,599 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:14,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:14,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:14,600 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:14,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:14,600 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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18e93ea431e83188bc36b5e920f02065de4d876f2ec76df16cf4e34ae99f6b21 [2023-11-19 05:17:14,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:14,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:14,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:14,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:14,936 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:14,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i [2023-11-19 05:17:17,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:18,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:18,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i [2023-11-19 05:17:18,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/data/bde699bee/ed8f06910b3d4c56b7fa9d5fe492b1cb/FLAG0dc1ad253 [2023-11-19 05:17:18,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/data/bde699bee/ed8f06910b3d4c56b7fa9d5fe492b1cb [2023-11-19 05:17:18,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:18,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:18,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:18,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:18,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:18,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ead23ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18, skipping insertion in model container [2023-11-19 05:17:18,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:18,370 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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i[341,354] [2023-11-19 05:17:18,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:18,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:18,424 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_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/sv-benchmarks/c/ldv-regression/rule57_ebda_blast_2.i[341,354] [2023-11-19 05:17:18,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:18,452 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:18,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18 WrapperNode [2023-11-19 05:17:18,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:18,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:18,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:18,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:18,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,497 INFO L138 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 107 [2023-11-19 05:17:18,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:18,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:18,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:18,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:18,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:18,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:18,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:18,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:18,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:18,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:18,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:17:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:18,715 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:18,719 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:18,961 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:19,028 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:19,028 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:17:19,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19 BoogieIcfgContainer [2023-11-19 05:17:19,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:19,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:19,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:19,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:19,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:18" (1/3) ... [2023-11-19 05:17:19,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111fdc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:19, skipping insertion in model container [2023-11-19 05:17:19,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (2/3) ... [2023-11-19 05:17:19,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111fdc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:19, skipping insertion in model container [2023-11-19 05:17:19,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19" (3/3) ... [2023-11-19 05:17:19,054 INFO L112 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2023-11-19 05:17:19,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:19,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:17:19,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:19,127 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30f49b0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:19,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:17:19,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:17:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:17:19,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:19,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:19,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:19,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash -814204755, now seen corresponding path program 1 times [2023-11-19 05:17:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449020271] [2023-11-19 05:17:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:19,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449020271] [2023-11-19 05:17:19,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449020271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:19,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:19,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:17:19,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528378070] [2023-11-19 05:17:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:19,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:19,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:19,630 INFO L87 Difference]: Start difference. First operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:17:19,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:19,725 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2023-11-19 05:17:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:17:19,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-19 05:17:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:19,735 INFO L225 Difference]: With dead ends: 33 [2023-11-19 05:17:19,735 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 05:17:19,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:19,742 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:19,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 79 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 05:17:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-19 05:17:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:17:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-11-19 05:17:19,784 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 11 [2023-11-19 05:17:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:19,785 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-19 05:17:19,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:17:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 05:17:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:17:19,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:19,787 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:19,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:17:19,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:19,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1204054268, now seen corresponding path program 1 times [2023-11-19 05:17:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219694025] [2023-11-19 05:17:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:19,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:17:19,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:19,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219694025] [2023-11-19 05:17:19,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219694025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:19,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:19,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:17:19,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541152771] [2023-11-19 05:17:19,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:19,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:19,953 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:17:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:20,037 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-11-19 05:17:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:17:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-19 05:17:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:20,040 INFO L225 Difference]: With dead ends: 31 [2023-11-19 05:17:20,041 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 05:17:20,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:17:20,043 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:20,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 67 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 05:17:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-19 05:17:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:17:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-19 05:17:20,057 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 16 [2023-11-19 05:17:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:20,058 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-19 05:17:20,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:17:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-19 05:17:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:17:20,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:20,065 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:20,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:17:20,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:20,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:20,067 INFO L85 PathProgramCache]: Analyzing trace with hash 375204188, now seen corresponding path program 1 times [2023-11-19 05:17:20,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:20,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286218825] [2023-11-19 05:17:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:20,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:17:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:20,219 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:17:20,219 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:17:20,220 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:17:20,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:17:20,225 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:17:20,229 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:20,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret9 [2023-11-19 05:17:20,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret10 [2023-11-19 05:17:20,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:20 BoogieIcfgContainer [2023-11-19 05:17:20,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:20,256 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:20,257 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:20,257 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:20,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19" (3/4) ... [2023-11-19 05:17:20,264 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:17:20,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret9 [2023-11-19 05:17:20,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret10 [2023-11-19 05:17:20,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:17:20,334 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:20,334 INFO L158 Benchmark]: Toolchain (without parser) took 2156.86ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 95.1MB in the end (delta: 21.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-19 05:17:20,336 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory was 65.0MB in the beginning and 64.7MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:20,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.54ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 105.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:17:20,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 103.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:20,345 INFO L158 Benchmark]: Boogie Preprocessor took 27.46ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 101.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:20,346 INFO L158 Benchmark]: RCFGBuilder took 514.84ms. Allocated memory is still 159.4MB. Free memory was 101.6MB in the beginning and 82.1MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:17:20,346 INFO L158 Benchmark]: TraceAbstraction took 1212.25ms. Allocated memory is still 159.4MB. Free memory was 81.4MB in the beginning and 98.2MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:20,346 INFO L158 Benchmark]: Witness Printer took 77.38ms. Allocated memory is still 159.4MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:20,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory was 65.0MB in the beginning and 64.7MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.54ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 105.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 103.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.46ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 101.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.84ms. Allocated memory is still 159.4MB. Free memory was 101.6MB in the beginning and 82.1MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1212.25ms. Allocated memory is still 159.4MB. Free memory was 81.4MB in the beginning and 98.2MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.38ms. Allocated memory is still 159.4MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret9 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret10 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret9 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret10 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] struct slot *tmp_slot; [L43] int used_tmp_slot = 0; [L44] int freed_tmp_slot = 1; [L138] CALL ebda_rsrc_controller() [L75] struct hotplug_slot *hp_slot_ptr; [L77] struct bus_info *bus_info_ptr1; [L78] int rc; VAL [freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L80] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L49] EXPR, FCALL calloc(1, size) [L49] return calloc(1, size); [L80] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L80] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L81] COND FALSE !(!hp_slot_ptr) [L85] hp_slot_ptr->b = 5 VAL [freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L49] EXPR, FCALL calloc(1, size) [L49] return calloc(1, size); [L87] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L89] COND FALSE !(!tmp_slot) [L94] used_tmp_slot = 0 [L95] freed_tmp_slot = 0 [L97] tmp_slot->a = 2 [L98] tmp_slot->b = 3 [L100] CALL, EXPR ibmphp_find_same_bus_num() [L58] COND TRUE __VERIFIER_nondet_int() [L59] return 0; VAL [\result={0:0}, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L100] RET, EXPR ibmphp_find_same_bus_num() [L100] bus_info_ptr1 = ibmphp_find_same_bus_num() [L101] COND TRUE !bus_info_ptr1 [L102] rc = -3 VAL [bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L129] EXPR hp_slot_ptr->private [L129] CALL kfree(hp_slot_ptr->private) [L52] COND FALSE !(p!=0 && p==tmp_slot) [L129] RET kfree(hp_slot_ptr->private) [L134] return rc; VAL [\result=-3, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L138] RET ebda_rsrc_controller() [L139] COND TRUE !used_tmp_slot VAL [freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L140] (freed_tmp_slot) ? (0) : __blast_assert () [L140] CALL __blast_assert () [L9] reach_error() VAL [freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:17:20,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704ca65d-b9f7-4da6-a09c-3ef1e8c083a0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE