./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s4liff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s4liff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire --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 7bc720b49036ae434d48a543e34b3029cd6dac2700d355b81aed2168ec15f73b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:57,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:57,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:57,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:57,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:57,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:57,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:57,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:57,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:57,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:57,470 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:57,471 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:57,472 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:57,472 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:57,473 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:57,474 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:57,474 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:57,475 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:57,476 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:57,477 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:57,477 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:57,478 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:57,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:57,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:57,480 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:57,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:57,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:57,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:57,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:57,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:57,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:57,484 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:57,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:57,485 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:57,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:57,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:57,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:57,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:57,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:57,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:57,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:57,488 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:57,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:57,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:57,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:57,494 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:57,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:57,494 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_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bc720b49036ae434d48a543e34b3029cd6dac2700d355b81aed2168ec15f73b [2023-11-23 20:34:57,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:57,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:57,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:57,845 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:57,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:57,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/array-fpi/s4liff.c [2023-11-23 20:35:01,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:01,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:01,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/sv-benchmarks/c/array-fpi/s4liff.c [2023-11-23 20:35:01,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/data/138897bbd/7edb6b45006d4865bb34ee45e28431e2/FLAGc961e72b7 [2023-11-23 20:35:01,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/data/138897bbd/7edb6b45006d4865bb34ee45e28431e2 [2023-11-23 20:35:01,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:01,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:01,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:01,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:01,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:01,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bf75ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01, skipping insertion in model container [2023-11-23 20:35:01,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:01,738 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_05b15157-e9fb-4f93-9ccd-26cd8cfce489/sv-benchmarks/c/array-fpi/s4liff.c[589,602] [2023-11-23 20:35:01,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:01,793 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:01,813 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_05b15157-e9fb-4f93-9ccd-26cd8cfce489/sv-benchmarks/c/array-fpi/s4liff.c[589,602] [2023-11-23 20:35:01,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:01,866 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:01,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01 WrapperNode [2023-11-23 20:35:01,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:01,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:01,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:01,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:01,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,942 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-11-23 20:35:01,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:01,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:01,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:01,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:01,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:01,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:01,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:02,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:02,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:02,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (1/1) ... [2023-11-23 20:35:02,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:02,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:02,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:02,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:35:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:35:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:35:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:35:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:35:02,207 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:02,210 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:02,507 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:02,620 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:02,622 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 20:35:02,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:02 BoogieIcfgContainer [2023-11-23 20:35:02,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:02,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:02,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:02,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:02,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:01" (1/3) ... [2023-11-23 20:35:02,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc5b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:02, skipping insertion in model container [2023-11-23 20:35:02,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:01" (2/3) ... [2023-11-23 20:35:02,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc5b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:02, skipping insertion in model container [2023-11-23 20:35:02,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:02" (3/3) ... [2023-11-23 20:35:02,647 INFO L112 eAbstractionObserver]: Analyzing ICFG s4liff.c [2023-11-23 20:35:02,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:02,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:02,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:02,748 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;@9d7d52c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:02,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:35:02,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:02,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:02,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:02,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1984398700, now seen corresponding path program 1 times [2023-11-23 20:35:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558387765] [2023-11-23 20:35:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:03,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:03,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558387765] [2023-11-23 20:35:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558387765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:03,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:03,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406801143] [2023-11-23 20:35:03,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:03,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:03,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:03,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:03,254 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:03,330 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2023-11-23 20:35:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:35:03,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 20:35:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:03,342 INFO L225 Difference]: With dead ends: 20 [2023-11-23 20:35:03,342 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 20:35:03,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:03,350 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:03,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 20:35:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-23 20:35:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-23 20:35:03,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2023-11-23 20:35:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-23 20:35:03,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-23 20:35:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:35:03,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:03,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:03,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:03,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:03,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:03,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1182799182, now seen corresponding path program 1 times [2023-11-23 20:35:03,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:03,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174917772] [2023-11-23 20:35:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:35:03,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:03,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174917772] [2023-11-23 20:35:03,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174917772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:03,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:03,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:35:03,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797203357] [2023-11-23 20:35:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:03,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:03,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:03,594 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:03,650 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-23 20:35:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:35:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 20:35:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:03,652 INFO L225 Difference]: With dead ends: 15 [2023-11-23 20:35:03,652 INFO L226 Difference]: Without dead ends: 11 [2023-11-23 20:35:03,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:03,663 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:03,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:35:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-23 20:35:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-23 20:35:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2023-11-23 20:35:03,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2023-11-23 20:35:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:03,683 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-23 20:35:03,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-23 20:35:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:35:03,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:03,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:03,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:35:03,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:03,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:03,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1408147660, now seen corresponding path program 1 times [2023-11-23 20:35:03,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:03,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218657998] [2023-11-23 20:35:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:03,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:03,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:35:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:03,894 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:35:03,894 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:35:03,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:03,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:35:03,903 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 20:35:03,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:03,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:03,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:03,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:03,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:03 BoogieIcfgContainer [2023-11-23 20:35:03,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:03,962 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:03,962 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:03,963 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:03,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:02" (3/4) ... [2023-11-23 20:35:03,964 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:35:03,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:03,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:03,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 20:35:03,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 20:35:04,038 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b15157-e9fb-4f93-9ccd-26cd8cfce489/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:35:04,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:04,040 INFO L158 Benchmark]: Toolchain (without parser) took 2575.26ms. Allocated memory is still 146.8MB. Free memory was 116.4MB in the beginning and 98.4MB in the end (delta: 18.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,041 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 113.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.75ms. Allocated memory is still 146.8MB. Free memory was 116.0MB in the beginning and 105.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.10ms. Allocated memory is still 146.8MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:04,043 INFO L158 Benchmark]: Boogie Preprocessor took 55.02ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 102.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,043 INFO L158 Benchmark]: RCFGBuilder took 626.64ms. Allocated memory is still 146.8MB. Free memory was 102.1MB in the beginning and 87.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,044 INFO L158 Benchmark]: TraceAbstraction took 1331.84ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 101.2MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:04,044 INFO L158 Benchmark]: Witness Printer took 76.99ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 98.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:04,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 113.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.75ms. Allocated memory is still 146.8MB. Free memory was 116.0MB in the beginning and 105.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.10ms. Allocated memory is still 146.8MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.02ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 102.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.64ms. Allocated memory is still 146.8MB. Free memory was 102.1MB in the beginning and 87.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1331.84ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 101.2MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.99ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 98.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = N [L32] i=0 VAL [N=1, a={-2:0}, i=0, sum={7:0}] [L32] COND TRUE i