./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.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_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/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_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/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_1c90b63a-eeda-4d43-8909-86dea63816ab/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 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:49:35,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:49:35,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:49:35,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:49:35,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:49:35,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:49:35,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:49:35,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:49:35,115 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:49:35,115 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:49:35,116 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:49:35,116 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:49:35,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:49:35,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:49:35,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:49:35,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:49:35,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:49:35,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:49:35,123 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_1c90b63a-eeda-4d43-8909-86dea63816ab/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 -> 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 [2024-11-14 04:49:35,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:49:35,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:49:35,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:49:35,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:49:35,443 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:49:35,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i Unable to find full path for "g++" [2024-11-14 04:49:37,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:49:37,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:49:37,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-11-14 04:49:37,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/data/29600e586/63dcb819a0024374b01ca74c24eaa983/FLAG5acad1fa1 [2024-11-14 04:49:37,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/data/29600e586/63dcb819a0024374b01ca74c24eaa983 [2024-11-14 04:49:37,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:49:37,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:49:37,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:49:37,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:49:37,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:49:37,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:37" (1/1) ... [2024-11-14 04:49:37,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b492f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:37, skipping insertion in model container [2024-11-14 04:49:37,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:37" (1/1) ... [2024-11-14 04:49:37,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:49:37,889 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_1c90b63a-eeda-4d43-8909-86dea63816ab/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-11-14 04:49:37,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:49:37,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:49:37,974 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_1c90b63a-eeda-4d43-8909-86dea63816ab/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-11-14 04:49:38,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:49:38,024 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:49:38,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38 WrapperNode [2024-11-14 04:49:38,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:49:38,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:49:38,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:49:38,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:49:38,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,079 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 183 [2024-11-14 04:49:38,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:49:38,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:49:38,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:49:38,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:49:38,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:49:38,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:49:38,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:49:38,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:49:38,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (1/1) ... [2024-11-14 04:49:38,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:49:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:49:38,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:49:38,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:49:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:49:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:49:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:49:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:49:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:49:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:49:38,315 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:49:38,318 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:49:38,872 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-14 04:49:38,872 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:49:39,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:49:39,139 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:49:39,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:39 BoogieIcfgContainer [2024-11-14 04:49:39,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:49:39,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:49:39,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:49:39,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:49:39,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:49:37" (1/3) ... [2024-11-14 04:49:39,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d7a809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:39, skipping insertion in model container [2024-11-14 04:49:39,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:38" (2/3) ... [2024-11-14 04:49:39,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d7a809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:39, skipping insertion in model container [2024-11-14 04:49:39,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:39" (3/3) ... [2024-11-14 04:49:39,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-11-14 04:49:39,170 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:49:39,172 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-81.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:49:39,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:49:39,256 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;@792db736, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:49:39,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:49:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 04:49:39,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 04:49:39,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:49:39,276 INFO L215 NwaCegarLoop]: trace histogram [26, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:49:39,276 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:49:39,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:49:39,282 INFO L85 PathProgramCache]: Analyzing trace with hash 943294642, now seen corresponding path program 1 times [2024-11-14 04:49:39,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:49:39,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135115313] [2024-11-14 04:49:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:49:39,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:49:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:49:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 14 proven. 74 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2024-11-14 04:49:46,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:49:46,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135115313] [2024-11-14 04:49:46,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135115313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:49:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486592827] [2024-11-14 04:49:46,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:49:46,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:49:46,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:49:46,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:49:46,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:49:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:49:47,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-14 04:49:47,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 406 proven. 136 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-14 04:57:12,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 41 proven. 53 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-14 04:58:10,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486592827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:58:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1615745553] [2024-11-14 04:58:10,384 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 04:58:10,384 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:58:10,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:58:10,392 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:58:10,393 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:20,757 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 62 for LOIs [2024-11-14 05:01:20,769 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:35,974 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '661#(and (<= 0 ~var_1_22~0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~k_loop~0#1| 0) (<= ~var_1_18~0 126) (<= 0 ~var_1_21~0) (<= ~var_1_22~0 63) (<= ~var_1_20~0 126) (= 32 ~last_1_var_1_17~0) (<= 0 (+ ~var_1_18~0 1)) (= 31 ~var_1_16~0) (= 10 ~last_1_var_1_7~0) (<= ~var_1_21~0 63) (= ~isInitial~0 1) (= 5 ~last_1_var_1_1~0) (<= 0 (+ ~var_1_20~0 1)) (<= 0 ~var_1_19~0) (<= ~var_1_19~0 126) (= ~last_1_var_1_11~0 4))' at error location [2024-11-14 05:01:35,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:35,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 12] total 44 [2024-11-14 05:01:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339740356] [2024-11-14 05:01:35,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:35,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-14 05:01:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-14 05:01:36,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1793, Invalid=5179, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 05:01:36,009 INFO L87 Difference]: Start difference. First operand has 48 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 44 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 36 states have internal predecessors, (68), 22 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (78), 20 states have call predecessors, (78), 22 states have call successors, (78) [2024-11-14 05:01:41,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:41,204 INFO L93 Difference]: Finished difference Result 170 states and 238 transitions. [2024-11-14 05:01:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 05:01:41,206 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 36 states have internal predecessors, (68), 22 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (78), 20 states have call predecessors, (78), 22 states have call successors, (78) Word has length 95 [2024-11-14 05:01:41,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:41,210 INFO L225 Difference]: With dead ends: 170 [2024-11-14 05:01:41,211 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:01:41,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4284 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=3165, Invalid=9491, Unknown=0, NotChecked=0, Total=12656 [2024-11-14 05:01:41,220 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 137 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:41,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 364 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 05:01:41,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:01:41,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:01:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:01:41,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-11-14 05:01:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:41,250 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:01:41,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 36 states have internal predecessors, (68), 22 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (78), 20 states have call predecessors, (78), 22 states have call successors, (78) [2024-11-14 05:01:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:01:41,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:01:41,254 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:01:41,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:01:41,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:41,462 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:01:41,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:01:43,006 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:01:43,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:01:43 BoogieIcfgContainer [2024-11-14 05:01:43,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:01:43,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:01:43,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:01:43,029 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:01:43,030 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:39" (3/4) ... [2024-11-14 05:01:43,033 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:01:43,038 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:01:43,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-14 05:01:43,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-14 05:01:43,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:01:43,046 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:01:43,183 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:01:43,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:01:43,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:01:43,186 INFO L158 Benchmark]: Toolchain (without parser) took 725489.57ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.3MB in the beginning and 802.8MB in the end (delta: -710.5MB). Peak memory consumption was 372.0MB. Max. memory is 16.1GB. [2024-11-14 05:01:43,186 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:43,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.61ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 77.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:01:43,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.25ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 73.6MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:43,187 INFO L158 Benchmark]: Boogie Preprocessor took 56.59ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:43,188 INFO L158 Benchmark]: RCFGBuilder took 1002.19ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 71.9MB in the end (delta: -105.4kB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-14 05:01:43,188 INFO L158 Benchmark]: TraceAbstraction took 723885.36ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 70.9MB in the beginning and 810.8MB in the end (delta: -740.0MB). Peak memory consumption was 341.9MB. Max. memory is 16.1GB. [2024-11-14 05:01:43,188 INFO L158 Benchmark]: Witness Printer took 155.28ms. Allocated memory is still 1.2GB. Free memory was 810.8MB in the beginning and 802.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:01:43,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.61ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 77.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.25ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 73.6MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.59ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1002.19ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 71.9MB in the end (delta: -105.4kB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 723885.36ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 70.9MB in the beginning and 810.8MB in the end (delta: -740.0MB). Peak memory consumption was 341.9MB. Max. memory is 16.1GB. * Witness Printer took 155.28ms. Allocated memory is still 1.2GB. Free memory was 810.8MB in the beginning and 802.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 722.2s, OverallIterations: 1, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 325 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 939 IncrementalHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 39 mSDtfsCounter, 939 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4284 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 509.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 8384 SizeOfPredicates, 42 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 1687/1950 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: ((((var_1_5 < last_1_var_1_7) || (var_1_6 == 0)) || (var_1_6 < var_1_12)) && ((var_1_5 < var_1_12) || ((var_1_12 == var_1_5) && (var_1_12 <= 0)))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && ((((((((((((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20))) && (var_1_21 == \old(var_1_21))) && (var_1_22 == \old(var_1_22))) && (var_1_23 == \old(var_1_23))) && (var_1_24 == \old(var_1_24))) && (last_1_var_1_1 == \old(last_1_var_1_1))) && (last_1_var_1_7 == \old(last_1_var_1_7))) && (last_1_var_1_11 == \old(last_1_var_1_11))) && (last_1_var_1_17 == \old(last_1_var_1_17)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:01:43,411 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 05:01:43,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c90b63a-eeda-4d43-8909-86dea63816ab/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE