./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/prefixsum_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/prefixsum_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2 --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 81bdf17d0130e934dcb31a2f76f595e947b99d6273334b7f05365a624466aeab --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:20,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:20,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:36:20,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:20,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:20,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:20,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:20,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:20,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:20,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:20,497 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:20,497 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:20,497 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:20,498 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:20,498 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:20,498 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:20,499 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:20,499 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:20,499 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:20,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:20,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:20,501 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:20,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:20,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:20,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:36:20,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:20,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:36:20,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:20,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:20,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:20,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:20,504 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:20,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:36:20,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:20,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:20,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:20,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:20,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:20,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:20,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:20,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:20,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:20,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:20,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:20,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:20,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:20,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:20,513 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_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81bdf17d0130e934dcb31a2f76f595e947b99d6273334b7f05365a624466aeab [2024-11-02 12:36:20,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:20,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:20,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:20,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:20,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:20,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/verifythis/prefixsum_rec.c Unable to find full path for "g++" [2024-11-02 12:36:23,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:23,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:23,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/sv-benchmarks/c/verifythis/prefixsum_rec.c [2024-11-02 12:36:23,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/data/858a275c2/15da5fae13dd44b1b704d7362bf766fd/FLAG7863f3b5f [2024-11-02 12:36:23,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/data/858a275c2/15da5fae13dd44b1b704d7362bf766fd [2024-11-02 12:36:23,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:23,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:23,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:23,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:23,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:23,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd35695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23, skipping insertion in model container [2024-11-02 12:36:23,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:36:23,605 WARN L251 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_17f87771-70fa-4dfd-ade8-082a580d6eb9/sv-benchmarks/c/verifythis/prefixsum_rec.c[525,538] [2024-11-02 12:36:23,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:23,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:36:23,672 WARN L251 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_17f87771-70fa-4dfd-ade8-082a580d6eb9/sv-benchmarks/c/verifythis/prefixsum_rec.c[525,538] [2024-11-02 12:36:23,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:23,713 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:36:23,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23 WrapperNode [2024-11-02 12:36:23,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:23,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:23,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:36:23,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:36:23,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,755 INFO L138 Inliner]: procedures = 22, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-02 12:36:23,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:23,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:36:23,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:36:23,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:36:23,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:36:23,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:36:23,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:36:23,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:36:23,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (1/1) ... [2024-11-02 12:36:23,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:23,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:23,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:36:23,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:36:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:36:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:36:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:36:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:36:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure downsweep [2024-11-02 12:36:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure downsweep [2024-11-02 12:36:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:36:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:36:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure upsweep [2024-11-02 12:36:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure upsweep [2024-11-02 12:36:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:36:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:36:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:36:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-02 12:36:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-02 12:36:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:36:24,016 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:36:24,019 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:36:24,299 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-02 12:36:24,300 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:36:24,369 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:36:24,369 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 12:36:24,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:24 BoogieIcfgContainer [2024-11-02 12:36:24,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:36:24,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:36:24,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:36:24,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:36:24,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:23" (1/3) ... [2024-11-02 12:36:24,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee920d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:24, skipping insertion in model container [2024-11-02 12:36:24,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:23" (2/3) ... [2024-11-02 12:36:24,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee920d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:24, skipping insertion in model container [2024-11-02 12:36:24,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:24" (3/3) ... [2024-11-02 12:36:24,379 INFO L112 eAbstractionObserver]: Analyzing ICFG prefixsum_rec.c [2024-11-02 12:36:24,394 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:36:24,394 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:36:24,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:36:24,457 INFO L333 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, 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;@1c741f5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:36:24,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:36:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:36:24,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-02 12:36:24,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:24,468 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:24,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:24,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1817416563, now seen corresponding path program 1 times [2024-11-02 12:36:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949464331] [2024-11-02 12:36:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:36:25,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:25,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949464331] [2024-11-02 12:36:25,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949464331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:25,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:25,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:36:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431534182] [2024-11-02 12:36:25,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:25,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:36:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:25,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:36:25,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:36:25,380 INFO L87 Difference]: Start difference. First operand has 39 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:36:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:25,545 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2024-11-02 12:36:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:36:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2024-11-02 12:36:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:25,557 INFO L225 Difference]: With dead ends: 52 [2024-11-02 12:36:25,558 INFO L226 Difference]: Without dead ends: 40 [2024-11-02 12:36:25,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:36:25,565 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:25,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:36:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-02 12:36:25,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2024-11-02 12:36:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:36:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2024-11-02 12:36:25,619 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 34 [2024-11-02 12:36:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:25,622 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2024-11-02 12:36:25,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:36:25,623 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2024-11-02 12:36:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-02 12:36:25,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:25,627 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:25,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:36:25,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:25,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:25,630 INFO L85 PathProgramCache]: Analyzing trace with hash 391416418, now seen corresponding path program 1 times [2024-11-02 12:36:25,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:25,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247892417] [2024-11-02 12:36:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:25,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 12:36:26,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247892417] [2024-11-02 12:36:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247892417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803812050] [2024-11-02 12:36:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:26,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:26,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:26,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:26,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:36:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:26,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:36:26,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 12:36:26,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 12:36:26,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803812050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:36:26,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [614009960] [2024-11-02 12:36:26,663 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-02 12:36:26,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:26,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:26,675 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:26,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:27,186 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 75 for LOIs [2024-11-02 12:36:27,240 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:36:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [614009960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:27,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:36:27,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6, 6] total 16 [2024-11-02 12:36:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742222562] [2024-11-02 12:36:27,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:27,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:36:27,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:27,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:36:27,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-02 12:36:27,917 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 8 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-02 12:36:28,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:28,175 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2024-11-02 12:36:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:36:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 35 [2024-11-02 12:36:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:28,179 INFO L225 Difference]: With dead ends: 75 [2024-11-02 12:36:28,179 INFO L226 Difference]: Without dead ends: 42 [2024-11-02 12:36:28,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-02 12:36:28,183 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:28,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 168 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:36:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-02 12:36:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-02 12:36:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:36:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-02 12:36:28,205 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 35 [2024-11-02 12:36:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:28,206 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-02 12:36:28,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-02 12:36:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-02 12:36:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-02 12:36:28,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:28,209 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:28,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:36:28,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:28,416 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:28,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash 364271013, now seen corresponding path program 1 times [2024-11-02 12:36:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110285804] [2024-11-02 12:36:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:36:28,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:28,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110285804] [2024-11-02 12:36:28,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110285804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:28,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466751808] [2024-11-02 12:36:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:28,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:28,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:28,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:28,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:36:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:28,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:36:28,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:36:29,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:36:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466751808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:36:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [423315538] [2024-11-02 12:36:29,193 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-02 12:36:29,194 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:29,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:29,195 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:29,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:30,012 INFO L197 IcfgInterpreter]: Interpreting procedure downsweep with input of size 30 for LOIs [2024-11-02 12:36:30,036 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 70 for LOIs [2024-11-02 12:36:30,061 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 73 for LOIs [2024-11-02 12:36:30,077 INFO L197 IcfgInterpreter]: Interpreting procedure upsweep with input of size 20 for LOIs [2024-11-02 12:36:30,094 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:36:42,202 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '817#(and (<= |ULTIMATE.start_check_~n#1| (+ (div |ULTIMATE.start_check_~n#1| 2) 1)) (exists ((|v_#memory_int_91| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_91| |ULTIMATE.start_main_~a~0#1.base| (store (store (select |v_#memory_int_91| |ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) (* 4 |ULTIMATE.start_check_~n#1|)) (+ (select (select |v_#memory_int_91| |ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) (* 4 |ULTIMATE.start_check_~n#1|))) (select (select |v_#memory_int_91| |ULTIMATE.start_main_~a~0#1.base|) (+ (* (div |ULTIMATE.start_check_~n#1| 2) 4) (- 4))))) (+ (* (div |ULTIMATE.start_check_~n#1| 2) 4) (- 4)) (select (select |v_#memory_int_91| |ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) (* 4 |ULTIMATE.start_check_~n#1|))))))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_check_~n#1|) (= |ULTIMATE.start_check_~sum~0#1| 0) (= |ULTIMATE.start_check_~i~0#1| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_check_~a#1.base|) 0) 0)) (= |ULTIMATE.start_check_~a#1.offset| 0) (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_main_~a~0#1.base|) (= |ULTIMATE.start_main_~a0~0#1.base| |ULTIMATE.start_check_~a0#1.base|) (= 0 |ULTIMATE.start_check_~a0#1.offset|))' at error location [2024-11-02 12:36:42,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:36:42,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:36:42,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-02 12:36:42,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771382235] [2024-11-02 12:36:42,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:36:42,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 12:36:42,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:42,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 12:36:42,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1397, Unknown=5, NotChecked=0, Total=1560 [2024-11-02 12:36:42,207 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-02 12:36:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:42,531 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2024-11-02 12:36:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:36:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 36 [2024-11-02 12:36:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:42,533 INFO L225 Difference]: With dead ends: 66 [2024-11-02 12:36:42,533 INFO L226 Difference]: Without dead ends: 43 [2024-11-02 12:36:42,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=174, Invalid=1543, Unknown=5, NotChecked=0, Total=1722 [2024-11-02 12:36:42,540 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:42,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 198 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:36:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-02 12:36:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-02 12:36:42,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:36:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2024-11-02 12:36:42,558 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 36 [2024-11-02 12:36:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:42,559 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2024-11-02 12:36:42,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-02 12:36:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2024-11-02 12:36:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:36:42,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:42,561 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:42,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:36:42,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:42,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:42,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:42,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1706422672, now seen corresponding path program 2 times [2024-11-02 12:36:42,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:42,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270427406] [2024-11-02 12:36:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:42,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 12:36:45,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:45,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270427406] [2024-11-02 12:36:45,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270427406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:45,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844177940] [2024-11-02 12:36:45,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:36:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:45,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:45,973 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:45,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17f87771-70fa-4dfd-ade8-082a580d6eb9/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:36:46,094 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-02 12:36:46,094 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:36:46,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-02 12:36:46,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:46,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-02 12:36:46,562 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_downsweep_~left_14 Int)) (and (= (store |c_old(#memory_int)| |c_downsweep_#in~a.base| (let ((.cse0 (select |c_old(#memory_int)| |c_downsweep_#in~a.base|)) (.cse1 (+ |c_downsweep_#in~a.offset| (* |c_downsweep_#in~right| 4)))) (let ((.cse2 (+ (* 4 v_downsweep_~left_14) |c_downsweep_#in~a.offset|)) (.cse3 (select .cse0 .cse1))) (store (store .cse0 .cse1 (+ (select .cse0 .cse2) .cse3)) .cse2 .cse3)))) |c_#memory_int|) (<= |c_downsweep_#in~right| (+ 1 v_downsweep_~left_14)) (<= v_downsweep_~left_14 |c_downsweep_#in~left|))) is different from true [2024-11-02 12:36:46,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-02 12:36:46,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 20 [2024-11-02 12:36:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 12:36:46,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:47,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844177940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [798156241] [2024-11-02 12:36:47,313 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-02 12:36:47,314 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:47,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:47,314 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:47,315 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:47,915 INFO L197 IcfgInterpreter]: Interpreting procedure downsweep with input of size 30 for LOIs [2024-11-02 12:36:47,937 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 70 for LOIs [2024-11-02 12:36:47,957 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 73 for LOIs [2024-11-02 12:36:47,973 INFO L197 IcfgInterpreter]: Interpreting procedure upsweep with input of size 20 for LOIs [2024-11-02 12:36:47,987 INFO L180 IcfgInterpreter]: Interpretation finished