./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.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_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/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_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/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_501f730e-6977-4384-a801-4598ac91a8ca/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 3d3457578c17fc1bdee00c1562f84acead0e6ee0268003a332891d4353885ff1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:24:47,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:24:47,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:24:47,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:24:47,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:24:47,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:24:47,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:24:47,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:24:47,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:24:47,443 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:24:47,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:24:47,444 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:24:47,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:24:47,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:24:47,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:24:47,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:47,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:24:47,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:24:47,447 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:24:47,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:24:47,447 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_501f730e-6977-4384-a801-4598ac91a8ca/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 -> 3d3457578c17fc1bdee00c1562f84acead0e6ee0268003a332891d4353885ff1 [2024-11-14 05:24:47,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:24:47,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:24:47,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:24:47,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:24:47,769 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:24:47,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i Unable to find full path for "g++" [2024-11-14 05:24:49,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:24:50,016 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:24:50,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i [2024-11-14 05:24:50,026 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/data/92b35370e/a9aaa168d7e841419b05eb64dbe95993/FLAGae7d20b9f [2024-11-14 05:24:50,311 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/data/92b35370e/a9aaa168d7e841419b05eb64dbe95993 [2024-11-14 05:24:50,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:24:50,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:24:50,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:50,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:24:50,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:24:50,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c22ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50, skipping insertion in model container [2024-11-14 05:24:50,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:24:50,538 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_501f730e-6977-4384-a801-4598ac91a8ca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i[916,929] [2024-11-14 05:24:50,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:50,637 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:24:50,648 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_501f730e-6977-4384-a801-4598ac91a8ca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i[916,929] [2024-11-14 05:24:50,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:50,728 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:24:50,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50 WrapperNode [2024-11-14 05:24:50,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:50,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:50,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:24:50,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:24:50,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,788 INFO L138 Inliner]: procedures = 29, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 448 [2024-11-14 05:24:50,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:50,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:24:50,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:24:50,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:24:50,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:24:50,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:24:50,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:24:50,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:24:50,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (1/1) ... [2024-11-14 05:24:50,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:50,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:50,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:24:50,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:24:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:24:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 05:24:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:24:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 05:24:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:24:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 05:24:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:24:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:24:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:24:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:24:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:24:51,076 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:24:51,078 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:24:51,626 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-14 05:24:51,626 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:24:52,224 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:24:52,224 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:24:52,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:52 BoogieIcfgContainer [2024-11-14 05:24:52,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:24:52,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:24:52,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:24:52,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:24:52,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:24:50" (1/3) ... [2024-11-14 05:24:52,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76f6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:52, skipping insertion in model container [2024-11-14 05:24:52,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:50" (2/3) ... [2024-11-14 05:24:52,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76f6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:52, skipping insertion in model container [2024-11-14 05:24:52,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:52" (3/3) ... [2024-11-14 05:24:52,240 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-57.i [2024-11-14 05:24:52,294 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:24:52,297 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-57.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:24:52,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:24:52,379 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;@bd788e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:24:52,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:24:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:24:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:24:52,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:52,395 INFO L215 NwaCegarLoop]: trace histogram [18, 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, 1, 1, 1] [2024-11-14 05:24:52,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:52,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash 285147842, now seen corresponding path program 1 times [2024-11-14 05:24:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:52,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298142216] [2024-11-14 05:24:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:52,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-14 05:25:39,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:39,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298142216] [2024-11-14 05:25:39,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298142216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:39,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738171589] [2024-11-14 05:25:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:39,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:39,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:39,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:39,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501f730e-6977-4384-a801-4598ac91a8ca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:25:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:40,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 153 conjuncts are in the unsatisfiable core [2024-11-14 05:25:40,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:41,339 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 39 treesize of output 26 [2024-11-14 05:25:43,936 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 39 treesize of output 26 [2024-11-14 05:25:45,735 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 32 treesize of output 28 [2024-11-14 05:25:47,284 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 39 treesize of output 26 [2024-11-14 05:25:48,653 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 39 treesize of output 26 [2024-11-14 05:25:49,880 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 39 treesize of output 26 [2024-11-14 05:25:50,942 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 39 treesize of output 26 [2024-11-14 05:25:53,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2024-11-14 05:25:54,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2024-11-14 05:25:58,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:58,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:25:59,067 INFO L349 Elim1Store]: treesize reduction 58, result has 34.8 percent of original size [2024-11-14 05:25:59,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 7 select indices, 7 select index equivalence classes, 25 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 279 [2024-11-14 05:25:59,440 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 126 [2024-11-14 05:26:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 8 proven. 286 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:26:02,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:04,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:26:04,380 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 167 [2024-11-14 05:26:40,620 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-14 05:26:40,621 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 164