./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E --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 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:19:21,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:19:21,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:19:21,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:19:21,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:19:21,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:19:21,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:19:21,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:19:21,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:19:21,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:19:21,690 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:19:21,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:19:21,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:19:21,690 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:19:21,691 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:19:21,691 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:19:21,691 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:19:21,691 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:19:21,691 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:19:21,691 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:19:21,692 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:19:21,692 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:19:21,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:19:21,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:19:21,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:19:21,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:19:21,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:19:21,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:19:21,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:19:21,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:19:21,696 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:19:21,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:19:21,697 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E 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 -> 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 [2024-11-14 05:19:22,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:19:22,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:19:22,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:19:22,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:19:22,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:19:22,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i Unable to find full path for "g++" [2024-11-14 05:19:24,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:19:25,011 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:19:25,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-14 05:19:25,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/data/247ac0f2b/0a29d8ac7e774a79b4243aaad329a13d/FLAGdbc892707 [2024-11-14 05:19:25,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/data/247ac0f2b/0a29d8ac7e774a79b4243aaad329a13d [2024-11-14 05:19:25,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:19:25,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:19:25,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:19:25,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:19:25,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:19:25,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2425741c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25, skipping insertion in model container [2024-11-14 05:19:25,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:19:25,296 WARN L250 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_9765c853-9f49-4476-b6bc-1b572069d068/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-14 05:19:25,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:19:25,441 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:19:25,456 WARN L250 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_9765c853-9f49-4476-b6bc-1b572069d068/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-14 05:19:25,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:19:25,567 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:19:25,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25 WrapperNode [2024-11-14 05:19:25,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:19:25,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:19:25,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:19:25,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:19:25,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,670 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2024-11-14 05:19:25,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:19:25,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:19:25,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:19:25,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:19:25,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:19:25,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:19:25,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:19:25,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:19:25,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (1/1) ... [2024-11-14 05:19:25,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:19:25,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:25,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:19:25,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:19:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:19:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:19:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:19:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:19:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:19:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:19:25,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:19:25,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:19:26,045 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:19:26,047 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:19:26,757 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-14 05:19:26,757 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:19:27,517 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:19:27,519 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:19:27,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:27 BoogieIcfgContainer [2024-11-14 05:19:27,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:19:27,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:19:27,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:19:27,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:19:27,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:19:25" (1/3) ... [2024-11-14 05:19:27,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68900054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:27, skipping insertion in model container [2024-11-14 05:19:27,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:25" (2/3) ... [2024-11-14 05:19:27,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68900054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:27, skipping insertion in model container [2024-11-14 05:19:27,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:27" (3/3) ... [2024-11-14 05:19:27,534 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-14 05:19:27,560 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:19:27,562 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-27.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:19:27,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:19:27,676 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;@35e9a9d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:19:27,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:19:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:19:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 05:19:27,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:27,698 INFO L215 NwaCegarLoop]: trace histogram [17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:27,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:19:27,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash 372681774, now seen corresponding path program 1 times [2024-11-14 05:19:27,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638860560] [2024-11-14 05:19:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:27,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 37 proven. 33 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-14 05:20:31,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638860560] [2024-11-14 05:20:31,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638860560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:31,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218785997] [2024-11-14 05:20:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:31,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:31,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:31,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765c853-9f49-4476-b6bc-1b572069d068/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:20:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:34,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 156 conjuncts are in the unsatisfiable core [2024-11-14 05:20:34,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:35,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2024-11-14 05:20:37,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2024-11-14 05:20:39,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2024-11-14 05:20:41,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2024-11-14 05:20:44,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2024-11-14 05:20:47,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 57 [2024-11-14 05:20:49,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2024-11-14 05:20:52,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2024-11-14 05:21:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 13 proven. 234 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 05:21:23,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:51,175 WARN L286 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:21:58,658 WARN L286 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:06,714 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:16,781 WARN L286 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:28,469 WARN L286 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:34,524 WARN L286 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:43,641 WARN L286 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:22:55,724 WARN L286 SmtUtils]: Spent 12.08s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:23:04,574 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:23:15,503 WARN L286 SmtUtils]: Spent 10.93s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:23:23,248 WARN L286 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:23:30,914 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:23:36,444 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:25:37,465 WARN L286 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:26:10,206 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:27:20,411 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:27:59,139 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:29:31,694 WARN L286 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:30:08,943 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:30:36,346 WARN L286 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:30:42,387 WARN L286 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:30:52,559 WARN L286 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:30:58,249 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:07,014 WARN L286 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:15,711 WARN L286 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:30,562 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:41,208 WARN L286 SmtUtils]: Spent 10.65s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:48,115 WARN L286 SmtUtils]: Spent 6.91s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:31:53,461 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:32:57,551 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:33:17,667 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:33:26,204 WARN L286 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:33:35,294 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)