./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.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_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/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_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/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_84ffe660-06a4-4a3b-b16a-7431b84d2643/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 9f215a3195f16669cd0369343da702eef7a8739b39d0494b1bddf6755cbdfe03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:53:04,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:53:04,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:53:04,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:53:04,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:53:04,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:53:04,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:53:04,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:53:04,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:53:04,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:53:04,937 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:53:04,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:53:04,937 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:53:04,939 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:53:04,940 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:53:04,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:53:04,940 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:53:04,940 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:53:04,940 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:53:04,941 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:53:04,941 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:53:04,941 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:53:04,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:53:04,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:53:04,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:04,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:53:04,943 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:53:04,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:53:04,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:53:04,944 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:53:04,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:53:04,945 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/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 -> 9f215a3195f16669cd0369343da702eef7a8739b39d0494b1bddf6755cbdfe03 [2024-11-14 03:53:05,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:05,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:05,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:05,290 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:05,292 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:05,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i Unable to find full path for "g++" [2024-11-14 03:53:07,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:07,461 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:07,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i [2024-11-14 03:53:07,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/db338722d/58ad1c0ff870408eace76942dfca2f7a/FLAG843c03320 [2024-11-14 03:53:07,506 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/db338722d/58ad1c0ff870408eace76942dfca2f7a [2024-11-14 03:53:07,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:07,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:07,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:07,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:07,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:07,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e139fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07, skipping insertion in model container [2024-11-14 03:53:07,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,556 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:07,693 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i[915,928] [2024-11-14 03:53:07,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:07,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:07,815 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i[915,928] [2024-11-14 03:53:07,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:07,888 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:07,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07 WrapperNode [2024-11-14 03:53:07,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:07,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:07,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:07,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:07,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,955 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-14 03:53:07,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:07,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:07,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:07,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:07,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:07,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:08,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:08,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:08,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:08,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:08,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:08,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:08,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:08,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (1/1) ... [2024-11-14 03:53:08,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:08,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:08,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:08,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:53:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:08,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:08,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:08,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:08,600 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-14 03:53:08,600 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:08,763 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:08,763 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:53:08,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:08 BoogieIcfgContainer [2024-11-14 03:53:08,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:08,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:08,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:08,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:08,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:07" (1/3) ... [2024-11-14 03:53:08,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9bf4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:08, skipping insertion in model container [2024-11-14 03:53:08,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:07" (2/3) ... [2024-11-14 03:53:08,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9bf4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:08, skipping insertion in model container [2024-11-14 03:53:08,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:08" (3/3) ... [2024-11-14 03:53:08,772 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-80.i [2024-11-14 03:53:08,788 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:08,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-80.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:53:08,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:08,878 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;@7d32d68c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:08,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:53:08,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 03:53:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:53:08,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:08,891 INFO L215 NwaCegarLoop]: trace histogram [19, 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 03:53:08,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:08,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash -744451326, now seen corresponding path program 1 times [2024-11-14 03:53:08,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327584575] [2024-11-14 03:53:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:09,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:09,558 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:53:09,560 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:09,562 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:53:09,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:53:09,571 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:53:09,664 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:53:09,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:53:09 BoogieIcfgContainer [2024-11-14 03:53:09,667 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:53:09,668 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:53:09,668 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:53:09,668 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:53:09,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:08" (3/4) ... [2024-11-14 03:53:09,674 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:53:09,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:53:09,676 INFO L158 Benchmark]: Toolchain (without parser) took 2161.65ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 71.2MB in the end (delta: 47.7MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-14 03:53:09,677 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:09,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.00ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 104.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:53:09,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.84ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 101.1MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:53:09,679 INFO L158 Benchmark]: Boogie Preprocessor took 58.22ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:09,679 INFO L158 Benchmark]: RCFGBuilder took 742.62ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 66.6MB in the end (delta: 32.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:53:09,680 INFO L158 Benchmark]: TraceAbstraction took 901.85ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 71.8MB in the end (delta: -5.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-14 03:53:09,682 INFO L158 Benchmark]: Witness Printer took 6.84ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 71.2MB in the end (delta: 600.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:09,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.00ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 104.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.84ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 101.1MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.22ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 742.62ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 66.6MB in the end (delta: 32.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 901.85ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 71.8MB in the end (delta: -5.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 6.84ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 71.2MB in the end (delta: 600.6kB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 92, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 88, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 128; [L23] double var_1_2 = 24.25; [L24] double var_1_3 = 128.5; [L25] double var_1_4 = 4.5; [L26] double var_1_5 = 49.5; [L27] signed short int var_1_9 = -25; [L28] unsigned char var_1_10 = 200; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] double var_1_13 = 128.375; [L32] unsigned short int var_1_14 = 0; [L33] float var_1_15 = 0.0; [L34] float var_1_16 = 4.87; [L35] float var_1_17 = 8.875; [L36] signed short int var_1_18 = -128; [L37] unsigned char var_1_19 = 0; [L38] unsigned char var_1_20 = 1; [L39] unsigned char var_1_21 = 0; [L40] unsigned long int var_1_22 = 16; [L41] unsigned long int var_1_23 = 4200661734; [L42] unsigned char last_1_var_1_10 = 200; [L126] isInitial = 1 [L127] FCALL initially() [L128] int k_loop; [L129] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_2=97/4, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L129] COND TRUE k_loop < 1 [L130] CALL updateLastVariables() [L119] last_1_var_1_10 = var_1_10 [L130] RET updateLastVariables() [L131] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L87] var_1_3 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L89] var_1_4 = __VERIFIER_nondet_double() [L90] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_9=-25] [L91] var_1_5 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L93] var_1_11 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L95] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L96] var_1_12 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L98] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L99] var_1_13 = __VERIFIER_nondet_double() [L100] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L101] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L102] var_1_15 = __VERIFIER_nondet_float() [L103] CALL assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L104] var_1_16 = __VERIFIER_nondet_float() [L105] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L106] var_1_17 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L108] var_1_20 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L110] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L111] var_1_21 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L113] CALL assume_abort_if_not(var_1_21 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_21 <= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L114] var_1_23 = __VERIFIER_nondet_ulong() [L115] CALL assume_abort_if_not(var_1_23 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=-56, var_1_9=-25] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_23 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=-56, var_1_9=-25] [L116] CALL assume_abort_if_not(var_1_23 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=-56, var_1_9=-25] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_23 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=-56, var_1_9=-25] [L131] RET updateVariables() [L132] CALL step() [L46] signed long int stepLocal_0 = last_1_var_1_10; [L47] COND TRUE stepLocal_0 >= last_1_var_1_10 [L48] var_1_9 = (-256 + last_1_var_1_10) [L52] signed short int stepLocal_1 = var_1_9; [L53] COND FALSE !(stepLocal_1 > 0) [L56] COND FALSE !(\read(var_1_19)) [L59] COND TRUE ! (var_1_5 > (255.9 / var_1_13)) [L60] var_1_10 = var_1_12 [L63] COND FALSE !(((var_1_2 - var_1_3) * var_1_4) < var_1_5) [L66] var_1_1 = var_1_10 [L68] COND FALSE !((var_1_17 <= (- var_1_16)) && var_1_19) [L71] COND FALSE !(\read(var_1_19)) [L74] var_1_22 = (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10))) [L76] COND TRUE ! var_1_19 [L77] COND FALSE !(((var_1_15 - var_1_16) - var_1_17) <= var_1_13) [L80] var_1_14 = var_1_18 [L132] RET step() [L133] CALL, EXPR property() [L122-L123] return (((((((((var_1_2 - var_1_3) * var_1_4) < var_1_5) ? (var_1_1 == ((signed short int) ((((-8) < ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10)))))) ? (-8) : ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))))))) : (var_1_1 == ((signed short int) var_1_10))) && ((last_1_var_1_10 >= last_1_var_1_10) ? (var_1_9 == ((signed short int) (-256 + last_1_var_1_10))) : (var_1_9 == ((signed short int) (last_1_var_1_10 + last_1_var_1_10))))) && (var_1_19 ? (var_1_10 == ((unsigned char) ((((0) < (var_1_12)) ? (0) : (var_1_12))))) : ((! (var_1_5 > (255.9 / var_1_13))) ? (var_1_10 == ((unsigned char) var_1_12)) : 1))) && ((! var_1_19) ? ((((var_1_15 - var_1_16) - var_1_17) <= var_1_13) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (((var_1_17 <= (- var_1_16)) && var_1_19) ? (var_1_18 == ((signed short int) var_1_10)) : 1)) && ((var_1_9 > 0) ? (var_1_19 == ((unsigned char) ((var_1_5 >= (- var_1_15)) && (var_1_11 && (var_1_20 && var_1_21))))) : 1)) && (var_1_19 ? (var_1_22 == ((unsigned long int) (var_1_9 + var_1_10))) : (var_1_22 == ((unsigned long int) (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10)))))) ; [L133] RET, EXPR property() [L133] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=0, var_1_11=1, var_1_12=0, var_1_14=-128, var_1_18=-128, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=0, var_1_23=-56, var_1_9=-56] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=200, var_1_10=0, var_1_11=1, var_1_12=0, var_1_14=-128, var_1_18=-128, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=0, var_1_23=-56, var_1_9=-56] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:53:09,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/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_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/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 9f215a3195f16669cd0369343da702eef7a8739b39d0494b1bddf6755cbdfe03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:53:12,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:53:12,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:53:12,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:53:12,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:53:12,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:53:12,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:53:12,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:53:12,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:53:12,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:53:12,516 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:53:12,516 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:53:12,516 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:53:12,516 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:53:12,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:53:12,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:53:12,518 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:53:12,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:53:12,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:53:12,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:12,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:53:12,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:53:12,525 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:53:12,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/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 -> 9f215a3195f16669cd0369343da702eef7a8739b39d0494b1bddf6755cbdfe03 [2024-11-14 03:53:12,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:12,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:12,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:12,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:12,869 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:12,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i Unable to find full path for "g++" [2024-11-14 03:53:14,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:15,080 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:15,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i [2024-11-14 03:53:15,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/683410207/82d87e36f3404d3590804955572ac594/FLAG43f793049 [2024-11-14 03:53:15,372 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/data/683410207/82d87e36f3404d3590804955572ac594 [2024-11-14 03:53:15,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:15,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:15,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:15,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:15,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:15,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26aab03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15, skipping insertion in model container [2024-11-14 03:53:15,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,405 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:15,541 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i[915,928] [2024-11-14 03:53:15,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:15,619 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:15,631 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_84ffe660-06a4-4a3b-b16a-7431b84d2643/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-80.i[915,928] [2024-11-14 03:53:15,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:15,690 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:15,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15 WrapperNode [2024-11-14 03:53:15,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:15,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:15,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:15,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:15,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,739 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-14 03:53:15,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:15,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:15,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:15,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:15,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:15,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:15,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:15,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:15,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (1/1) ... [2024-11-14 03:53:15,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:15,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:15,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:53:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:53:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:53:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:15,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:15,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:28,376 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-14 03:53:28,376 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:28,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:28,387 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:53:28,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:28 BoogieIcfgContainer [2024-11-14 03:53:28,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:28,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:28,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:28,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:28,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:15" (1/3) ... [2024-11-14 03:53:28,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e969dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:28, skipping insertion in model container [2024-11-14 03:53:28,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:15" (2/3) ... [2024-11-14 03:53:28,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e969dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:28, skipping insertion in model container [2024-11-14 03:53:28,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:28" (3/3) ... [2024-11-14 03:53:28,400 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-80.i [2024-11-14 03:53:28,417 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:28,420 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-80.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:53:28,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:28,493 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;@41130db1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:28,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:53:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 03:53:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 03:53:28,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:28,513 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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 03:53:28,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:28,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1893642822, now seen corresponding path program 1 times [2024-11-14 03:53:28,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:28,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086723064] [2024-11-14 03:53:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:28,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:28,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:28,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:28,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:53:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:30,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:53:30,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-14 03:53:30,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:30,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:30,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086723064] [2024-11-14 03:53:30,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086723064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:30,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:30,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:53:30,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709951648] [2024-11-14 03:53:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:30,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:30,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:30,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:30,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:30,459 INFO L87 Difference]: Start difference. First operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:53:33,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:53:35,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:53:37,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:53:39,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:53:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:39,130 INFO L93 Difference]: Finished difference Result 177 states and 305 transitions. [2024-11-14 03:53:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:39,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2024-11-14 03:53:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:39,222 INFO L225 Difference]: With dead ends: 177 [2024-11-14 03:53:39,223 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 03:53:39,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:53:39,233 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 84 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:39,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 244 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 8.5s Time] [2024-11-14 03:53:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 03:53:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 59. [2024-11-14 03:53:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 03:53:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2024-11-14 03:53:39,297 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 125 [2024-11-14 03:53:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:39,299 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2024-11-14 03:53:39,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:53:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2024-11-14 03:53:39,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 03:53:39,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:39,302 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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 03:53:39,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:39,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:39,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:39,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:39,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2008297464, now seen corresponding path program 1 times [2024-11-14 03:53:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:39,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224161196] [2024-11-14 03:53:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:39,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:39,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:39,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:39,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:53:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:40,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:53:40,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-14 03:53:43,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:43,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:43,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224161196] [2024-11-14 03:53:43,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224161196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:43,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:43,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012365984] [2024-11-14 03:53:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:43,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:43,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:43,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:43,351 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:53:45,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:53:47,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:53:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:47,833 INFO L93 Difference]: Finished difference Result 169 states and 248 transitions. [2024-11-14 03:53:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2024-11-14 03:53:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:47,930 INFO L225 Difference]: With dead ends: 169 [2024-11-14 03:53:47,930 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 03:53:47,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:47,932 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 14 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:47,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 157 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2024-11-14 03:53:47,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 03:53:47,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2024-11-14 03:53:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.2) internal successors, (84), 70 states have internal predecessors, (84), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:53:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2024-11-14 03:53:47,956 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 125 [2024-11-14 03:53:47,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:47,957 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2024-11-14 03:53:47,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:53:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2024-11-14 03:53:47,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 03:53:47,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:47,960 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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 03:53:47,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:48,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:48,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:48,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1635477384, now seen corresponding path program 1 times [2024-11-14 03:53:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:48,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933785254] [2024-11-14 03:53:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:48,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:48,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:48,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:48,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:53:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:49,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:49,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-14 03:53:52,079 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:52,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:52,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933785254] [2024-11-14 03:53:52,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933785254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:52,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:52,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:53:52,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574126139] [2024-11-14 03:53:52,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:52,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:53:52,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:52,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:53:52,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:53:52,082 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:53:55,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:53:57,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:53:59,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:01,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:03,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:05,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:07,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:09,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:11,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:13,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:15,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:17,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:20,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:22,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:24,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:26,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:28,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:30,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:54:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:30,842 INFO L93 Difference]: Finished difference Result 285 states and 407 transitions. [2024-11-14 03:54:30,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:54:30,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2024-11-14 03:54:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:30,947 INFO L225 Difference]: With dead ends: 285 [2024-11-14 03:54:30,947 INFO L226 Difference]: Without dead ends: 177 [2024-11-14 03:54:30,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:54:30,950 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 57 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 39 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:30,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 282 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 55 Invalid, 18 Unknown, 0 Unchecked, 38.5s Time] [2024-11-14 03:54:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-14 03:54:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 163. [2024-11-14 03:54:30,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 102 states have internal predecessors, (120), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-14 03:54:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 234 transitions. [2024-11-14 03:54:30,992 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 234 transitions. Word has length 125 [2024-11-14 03:54:30,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:30,992 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 234 transitions. [2024-11-14 03:54:30,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 03:54:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 234 transitions. [2024-11-14 03:54:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-14 03:54:30,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:30,995 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1] [2024-11-14 03:54:31,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:54:31,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:54:31,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:54:31,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash 639194679, now seen corresponding path program 1 times [2024-11-14 03:54:31,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:54:31,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824203624] [2024-11-14 03:54:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:31,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:54:31,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:54:31,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:54:31,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ffe660-06a4-4a3b-b16a-7431b84d2643/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:54:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:32,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:54:32,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:55,946 WARN L851 $PredicateComparison]: unable to prove that (and (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32)))) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (_ bv0 16) (bvadd c_~var_1_1~0 (_ bv8 16)))) is different from false [2024-11-14 03:54:57,978 WARN L873 $PredicateComparison]: unable to prove that (and (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32)))) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (_ bv0 16) (bvadd c_~var_1_1~0 (_ bv8 16)))) is different from true [2024-11-14 03:55:54,979 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32)))) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (_ bv0 16) (bvadd c_~var_1_1~0 (_ bv8 16))) (= (_ bv0 8) c_~var_1_19~0)) is different from false [2024-11-14 03:55:57,005 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32)))) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (_ bv0 16) (bvadd c_~var_1_1~0 (_ bv8 16))) (= (_ bv0 8) c_~var_1_19~0)) is different from true [2024-11-14 03:57:20,958 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32)))) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= c_~var_1_18~0 c_~var_1_14~0) (= (_ bv0 16) (bvadd c_~var_1_1~0 (_ bv8 16))) (= (_ bv0 8) c_~var_1_19~0)) is different from true