./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:30:05,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:30:06,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:30:06,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:30:06,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:30:06,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:30:06,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:30:06,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:30:06,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:30:06,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:30:06,038 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:30:06,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:30:06,038 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:30:06,038 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:30:06,038 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:30:06,039 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:30:06,039 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:30:06,039 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:30:06,039 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:30:06,040 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:30:06,040 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:30:06,040 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:30:06,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:30:06,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:30:06,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:30:06,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:30:06,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:30:06,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:30:06,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:30:06,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:30:06,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:30:06,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:30:06,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:30:06,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:30:06,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:30:06,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:30:06,045 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 -> 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c [2024-11-13 23:30:06,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:30:06,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:30:06,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:30:06,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:30:06,417 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:30:06,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i Unable to find full path for "g++" [2024-11-13 23:30:08,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:30:08,851 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:30:08,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2024-11-13 23:30:08,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/5cf0d3497/cc987b981e394c1ea5885e10f5529d7c/FLAG27ab65205 [2024-11-13 23:30:08,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/5cf0d3497/cc987b981e394c1ea5885e10f5529d7c [2024-11-13 23:30:08,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:30:08,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:30:08,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:30:08,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:30:08,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:30:08,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:30:08" (1/1) ... [2024-11-13 23:30:08,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6ec3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:08, skipping insertion in model container [2024-11-13 23:30:08,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:30:08" (1/1) ... [2024-11-13 23:30:08,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:30:09,179 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2024-11-13 23:30:09,231 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2024-11-13 23:30:09,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:30:09,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:30:09,265 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2024-11-13 23:30:09,279 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2024-11-13 23:30:09,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:30:09,299 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:30:09,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09 WrapperNode [2024-11-13 23:30:09,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:30:09,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:30:09,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:30:09,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:30:09,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,357 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2024-11-13 23:30:09,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:30:09,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:30:09,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:30:09,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:30:09,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:30:09,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:30:09,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:30:09,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:30:09,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (1/1) ... [2024-11-13 23:30:09,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:30:09,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:30:09,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:30:09,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:30:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:30:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:30:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:30:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:30:09,594 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:30:09,597 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:30:09,813 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 23:30:09,813 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:30:09,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:30:09,899 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:30:09,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:09 BoogieIcfgContainer [2024-11-13 23:30:09,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:30:09,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:30:09,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:30:09,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:30:09,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:30:08" (1/3) ... [2024-11-13 23:30:09,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a03ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:30:09, skipping insertion in model container [2024-11-13 23:30:09,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:09" (2/3) ... [2024-11-13 23:30:09,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a03ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:30:09, skipping insertion in model container [2024-11-13 23:30:09,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:09" (3/3) ... [2024-11-13 23:30:09,913 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_5.i [2024-11-13 23:30:09,935 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:30:09,937 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_5.i that has 1 procedures, 15 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 23:30:10,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:30:10,017 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;@3bc4747c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:30:10,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 23:30:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:30:10,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:30:10,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:30:10,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 23:30:10,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:30:10,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:30:10,040 INFO L85 PathProgramCache]: Analyzing trace with hash 3394443, now seen corresponding path program 1 times [2024-11-13 23:30:10,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:30:10,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443363255] [2024-11-13 23:30:10,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:30:10,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:30:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:30:10,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:30:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:30:10,184 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:30:10,186 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:30:10,188 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 23:30:10,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 23:30:10,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:30:10,196 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:30:10,213 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:30:10,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:30:10 BoogieIcfgContainer [2024-11-13 23:30:10,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:30:10,222 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:30:10,222 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:30:10,222 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:30:10,223 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:09" (3/4) ... [2024-11-13 23:30:10,226 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:30:10,227 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:30:10,229 INFO L158 Benchmark]: Toolchain (without parser) took 1324.15ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 75.0MB in the end (delta: 44.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 23:30:10,229 INFO L158 Benchmark]: CDTParser took 1.24ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:30:10,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.45ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:30:10,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.64ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 105.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:30:10,231 INFO L158 Benchmark]: Boogie Preprocessor took 46.66ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 930.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:30:10,231 INFO L158 Benchmark]: RCFGBuilder took 490.04ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 87.9MB in the end (delta: 16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:30:10,231 INFO L158 Benchmark]: TraceAbstraction took 315.36ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 75.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:30:10,236 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 75.0MB in the end (delta: 249.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:30:10,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.45ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.64ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 105.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.66ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 930.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 490.04ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 87.9MB in the end (delta: 16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 315.36ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 75.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 75.0MB in the end (delta: 249.2kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, 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=15occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2024-11-13 23:30:10,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:30:13,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:30:13,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:30:13,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:30:13,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:30:13,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:30:13,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:30:13,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:30:13,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:30:13,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:30:13,801 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:30:13,802 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:30:13,802 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:30:13,802 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:30:13,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:30:13,802 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:30:13,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:30:13,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:30:13,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:30:13,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:30:13,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:30:13,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:30:13,806 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:30:13,806 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 -> 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c [2024-11-13 23:30:14,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:30:14,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:30:14,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:30:14,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:30:14,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:30:14,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i Unable to find full path for "g++" [2024-11-13 23:30:16,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:30:16,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:30:16,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2024-11-13 23:30:16,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/da4d22c96/58a09dbf3f0e455682de93ba295fed67/FLAG8fd08cb06 [2024-11-13 23:30:16,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/data/da4d22c96/58a09dbf3f0e455682de93ba295fed67 [2024-11-13 23:30:16,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:30:16,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:30:16,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:30:16,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:30:16,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:30:16,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:30:16" (1/1) ... [2024-11-13 23:30:16,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c627c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:16, skipping insertion in model container [2024-11-13 23:30:16,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:30:16" (1/1) ... [2024-11-13 23:30:16,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:30:16,918 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2024-11-13 23:30:16,970 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2024-11-13 23:30:16,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:30:16,994 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:30:17,015 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2024-11-13 23:30:17,038 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_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2024-11-13 23:30:17,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:30:17,069 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:30:17,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17 WrapperNode [2024-11-13 23:30:17,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:30:17,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:30:17,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:30:17,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:30:17,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,142 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2024-11-13 23:30:17,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:30:17,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:30:17,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:30:17,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:30:17,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:30:17,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:30:17,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:30:17,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:30:17,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (1/1) ... [2024-11-13 23:30:17,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:30:17,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:30:17,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:30:17,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:30:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:30:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:30:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:30:17,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:30:17,369 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:30:17,371 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:30:23,417 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-13 23:30:23,418 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:30:23,429 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:30:23,429 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:30:23,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:23 BoogieIcfgContainer [2024-11-13 23:30:23,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:30:23,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:30:23,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:30:23,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:30:23,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:30:16" (1/3) ... [2024-11-13 23:30:23,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbeaf46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:30:23, skipping insertion in model container [2024-11-13 23:30:23,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:30:17" (2/3) ... [2024-11-13 23:30:23,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbeaf46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:30:23, skipping insertion in model container [2024-11-13 23:30:23,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:23" (3/3) ... [2024-11-13 23:30:23,442 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_5.i [2024-11-13 23:30:23,460 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:30:23,462 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_5.i that has 1 procedures, 27 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 23:30:23,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:30:23,532 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;@4fcbbf08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:30:23,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 23:30:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:30:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 23:30:23,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:30:23,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:30:23,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:30:23,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:30:23,551 INFO L85 PathProgramCache]: Analyzing trace with hash -469338024, now seen corresponding path program 1 times [2024-11-13 23:30:23,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:30:23,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649767658] [2024-11-13 23:30:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:30:23,567 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 [2024-11-13 23:30:23,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:30:23,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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) [2024-11-13 23:30:23,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 [2024-11-13 23:30:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:30:24,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:30:24,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:30:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:30:24,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:30:24,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:30:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649767658] [2024-11-13 23:30:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649767658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:30:24,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:30:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:30:24,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878104695] [2024-11-13 23:30:24,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:30:24,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:30:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:30:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:30:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:30:24,850 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:30:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:30:24,861 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-13 23:30:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:30:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-13 23:30:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:30:24,869 INFO L225 Difference]: With dead ends: 47 [2024-11-13 23:30:24,870 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 23:30:24,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:30:24,876 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:30:24,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:30:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 23:30:24,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 23:30:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:30:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 23:30:24,903 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 23:30:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:30:24,904 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 23:30:24,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:30:24,904 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 23:30:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 23:30:24,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:30:24,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:30:24,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 [2024-11-13 23:30:25,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 [2024-11-13 23:30:25,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:30:25,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:30:25,106 INFO L85 PathProgramCache]: Analyzing trace with hash -412079722, now seen corresponding path program 1 times [2024-11-13 23:30:25,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:30:25,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017638270] [2024-11-13 23:30:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:30:25,107 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 [2024-11-13 23:30:25,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:30:25,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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) [2024-11-13 23:30:25,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 [2024-11-13 23:34:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:34:21,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:35:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:35:13,162 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-13 23:35:13,163 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:35:13,164 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 23:35:13,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 23:35:13,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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)] Ended with exit code 0 [2024-11-13 23:35:13,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 [2024-11-13 23:35:13,369 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 23:35:13,388 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:35:13,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:35:13 BoogieIcfgContainer [2024-11-13 23:35:13,392 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:35:13,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:35:13,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:35:13,393 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:35:13,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:30:23" (3/4) ... [2024-11-13 23:35:13,395 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 23:35:13,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:35:13,430 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:35:13,431 INFO L158 Benchmark]: Toolchain (without parser) took 296770.16ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 85.8MB in the end (delta: 7.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-13 23:35:13,431 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:13,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.24ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:13,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.93ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:13,433 INFO L158 Benchmark]: Boogie Preprocessor took 40.85ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:13,433 INFO L158 Benchmark]: RCFGBuilder took 6242.31ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 64.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:13,434 INFO L158 Benchmark]: TraceAbstraction took 289959.34ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 87.7MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:13,437 INFO L158 Benchmark]: Witness Printer took 36.93ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 85.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:13,439 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.24ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.93ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.85ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6242.31ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 64.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 289959.34ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 87.7MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.93ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 85.8MB in the end (delta: 1.9MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\result=-0.6492181420326233] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.7609758377075195] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 289.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 237.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2024-11-13 23:35:13,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82ad4951-3a5d-46d3-876e-0ac5b5cf8cc1/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE