./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i --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_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/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_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/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_e8b3a1b8-13ac-4413-96c6-b4354189386e/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 6b42afb425befffe59b79424852c909b3e1036728d2e8fd866af9c27ec055fcd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:23:50,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:23:50,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:23:50,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:23:50,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:23:50,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:23:50,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:23:50,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:23:50,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:23:50,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:23:50,682 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:23:50,683 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:23:50,683 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:23:50,684 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:23:50,687 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:23:50,687 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:23:50,688 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:23:50,688 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:23:50,689 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:23:50,690 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:23:50,690 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:23:50,694 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:23:50,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:23:50,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:23:50,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:23:50,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:23:50,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:23:50,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:23:50,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:23:50,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:23:50,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:23:50,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:23:50,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:23:50,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:23:50,704 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:23:50,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:23:50,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:23:50,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:23:50,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:50,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:23:50,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:23:50,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:23:50,708 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:23:50,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:23:50,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:23:50,710 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:23:50,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:23:50,711 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_e8b3a1b8-13ac-4413-96c6-b4354189386e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b42afb425befffe59b79424852c909b3e1036728d2e8fd866af9c27ec055fcd [2024-11-02 12:23:51,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:23:51,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:23:51,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:23:51,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:23:51,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:23:51,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i Unable to find full path for "g++" [2024-11-02 12:23:53,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:23:53,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:23:53,871 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i [2024-11-02 12:23:53,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/data/2b21e09b5/4e796789474a40f79289c1e757f98628/FLAGcfa344c30 [2024-11-02 12:23:53,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/data/2b21e09b5/4e796789474a40f79289c1e757f98628 [2024-11-02 12:23:53,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:23:53,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:23:53,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:53,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:23:53,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:23:53,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:53" (1/1) ... [2024-11-02 12:23:53,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dff9268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:53, skipping insertion in model container [2024-11-02 12:23:53,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:53" (1/1) ... [2024-11-02 12:23:53,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:23:54,206 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_e8b3a1b8-13ac-4413-96c6-b4354189386e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i[917,930] [2024-11-02 12:23:54,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:54,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:23:54,369 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_e8b3a1b8-13ac-4413-96c6-b4354189386e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-42.i[917,930] [2024-11-02 12:23:54,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:54,507 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:23:54,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54 WrapperNode [2024-11-02 12:23:54,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:54,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:54,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:23:54,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:23:54,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,632 INFO L138 Inliner]: procedures = 29, calls = 141, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-02 12:23:54,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:54,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:23:54,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:23:54,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:23:54,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:23:54,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:23:54,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:23:54,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:23:54,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (1/1) ... [2024-11-02 12:23:54,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:23:54,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:23:54,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:23:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:23:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-02 12:23:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:23:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-02 12:23:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:23:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-02 12:23:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:23:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:23:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:23:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:23:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:23:55,047 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:23:55,050 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:23:55,743 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-11-02 12:23:55,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:23:56,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:23:56,357 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:23:56,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:56 BoogieIcfgContainer [2024-11-02 12:23:56,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:23:56,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:23:56,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:23:56,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:23:56,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:23:53" (1/3) ... [2024-11-02 12:23:56,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32584a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:56, skipping insertion in model container [2024-11-02 12:23:56,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:54" (2/3) ... [2024-11-02 12:23:56,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32584a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:56, skipping insertion in model container [2024-11-02 12:23:56,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:56" (3/3) ... [2024-11-02 12:23:56,377 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-42.i [2024-11-02 12:23:56,403 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:23:56,404 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:23:56,492 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:23:56,500 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;@35e19b2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:23:56,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:23:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-02 12:23:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-02 12:23:56,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:56,515 INFO L215 NwaCegarLoop]: trace histogram [11, 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] [2024-11-02 12:23:56,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:56,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash -960506322, now seen corresponding path program 1 times [2024-11-02 12:23:56,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:56,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472697865] [2024-11-02 12:23:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-02 12:24:15,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472697865] [2024-11-02 12:24:15,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472697865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:24:15,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403780308] [2024-11-02 12:24:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:15,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:24:15,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:15,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:24:15,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b3a1b8-13ac-4413-96c6-b4354189386e/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:24:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:16,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-02 12:24:16,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:17,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11