./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.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_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/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_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/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_ed6701f0-e5f9-4556-9388-67103546b27d/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 9f13b6ec153b424c9c18800ebe21aa9579fe753fb31fef85cd6c1089c45b899c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:07:01,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:07:01,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:07:01,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:07:01,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:07:01,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:07:01,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:07:01,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:07:01,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:07:01,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:07:01,807 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:07:01,807 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:07:01,807 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:07:01,807 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:07:01,808 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:07:01,808 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:07:01,808 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:07:01,808 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:07:01,808 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:07:01,809 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:07:01,809 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:07:01,809 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:07:01,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:07:01,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:07:01,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:07:01,811 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:07:01,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:07:01,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:07:01,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:07:01,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:07:01,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:07:01,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:07:01,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:07:01,813 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:07:01,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:07:01,813 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_ed6701f0-e5f9-4556-9388-67103546b27d/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 -> 9f13b6ec153b424c9c18800ebe21aa9579fe753fb31fef85cd6c1089c45b899c [2024-11-14 03:07:02,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:07:02,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:07:02,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:07:02,146 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:07:02,147 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:07:02,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.i Unable to find full path for "g++" [2024-11-14 03:07:03,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:07:04,244 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:07:04,245 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.i [2024-11-14 03:07:04,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/data/fc57e9e9a/9a314ae49e754b8184ee1b21b008cbe0/FLAG6a7f36f9c [2024-11-14 03:07:04,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/data/fc57e9e9a/9a314ae49e754b8184ee1b21b008cbe0 [2024-11-14 03:07:04,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:07:04,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:07:04,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:07:04,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:07:04,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:07:04,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:04,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff50af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04, skipping insertion in model container [2024-11-14 03:07:04,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:04,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:07:04,702 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_ed6701f0-e5f9-4556-9388-67103546b27d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.i[917,930] [2024-11-14 03:07:04,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:07:04,779 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:07:04,794 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_ed6701f0-e5f9-4556-9388-67103546b27d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-88.i[917,930] [2024-11-14 03:07:04,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:07:04,906 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:07:04,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04 WrapperNode [2024-11-14 03:07:04,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:07:04,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:07:04,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:07:04,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:07:04,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:04,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:04,985 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 546 [2024-11-14 03:07:04,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:07:04,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:07:04,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:07:04,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:07:04,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:07:05,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:07:05,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:07:05,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:07:05,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (1/1) ... [2024-11-14 03:07:05,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:07:05,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:07:05,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:07:05,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:07:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:07:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:07:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:07:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:07:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:07:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 03:07:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:07:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:07:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:07:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:07:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:07:05,307 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:07:05,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:07:06,033 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-11-14 03:07:06,033 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:07:06,973 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:07:06,975 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:07:06,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:07:06 BoogieIcfgContainer [2024-11-14 03:07:06,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:07:06,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:07:06,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:07:06,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:07:06,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:07:04" (1/3) ... [2024-11-14 03:07:06,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311e9f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:07:06, skipping insertion in model container [2024-11-14 03:07:06,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:04" (2/3) ... [2024-11-14 03:07:06,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311e9f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:07:06, skipping insertion in model container [2024-11-14 03:07:06,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:07:06" (3/3) ... [2024-11-14 03:07:06,990 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-88.i [2024-11-14 03:07:07,007 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:07:07,009 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-88.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:07:07,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:07:07,114 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;@18205303, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:07:07,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:07:07,119 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 03:07:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:07:07,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:07,129 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 03:07:07,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:07,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1795843303, now seen corresponding path program 1 times [2024-11-14 03:07:07,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:07,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313432574] [2024-11-14 03:07:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:07,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 29 proven. 31 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-14 03:08:06,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:08:06,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313432574] [2024-11-14 03:08:06,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313432574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:08:06,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409203278] [2024-11-14 03:08:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:08:06,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:08:06,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:08:06,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:08:06,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed6701f0-e5f9-4556-9388-67103546b27d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:08:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:07,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-14 03:08:07,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:08:07,889 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 32 treesize of output 33 [2024-11-14 03:08:09,759 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 32 treesize of output 33 [2024-11-14 03:08:11,228 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 32 treesize of output 33 [2024-11-14 03:08:12,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-14 03:08:13,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-14 03:08:14,864 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 32 treesize of output 33 [2024-11-14 03:08:16,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-14 03:08:18,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2024-11-14 03:08:19,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2024-11-14 03:08:22,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:08:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:08:22,625 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-14 03:08:22,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 195 treesize of output 187 [2024-11-14 03:08:22,959 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 126 treesize of output 123 [2024-11-14 03:08:23,172 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 186 treesize of output 186 [2024-11-14 03:08:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 17 proven. 231 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:08:30,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:08:32,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:08:32,544 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 175 treesize of output 173 [2024-11-14 03:08:32,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:08:32,809 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 741 treesize of output 742