./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c --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_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/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_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/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_a2e9a959-b99a-4059-a311-c580be1cc8a2/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 78ef731083faa503d4cf5e0ad0f2613cb9f5144cc63c5bca18c10075cc31f97f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:26:39,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:26:39,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:26:39,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:26:39,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:26:39,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:26:39,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:26:39,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:26:39,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:26:39,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:26:39,358 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:26:39,358 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:26:39,358 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:26:39,360 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:26:39,361 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:26:39,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:26:39,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:26:39,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:26:39,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:26:39,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:26:39,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:26:39,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:26:39,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:26:39,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:26:39,365 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:26:39,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:26:39,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:26:39,365 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:26:39,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:26:39,365 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_a2e9a959-b99a-4059-a311-c580be1cc8a2/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 -> 78ef731083faa503d4cf5e0ad0f2613cb9f5144cc63c5bca18c10075cc31f97f [2024-11-14 05:26:39,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:26:39,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:26:39,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:26:39,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:26:39,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:26:39,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c Unable to find full path for "g++" [2024-11-14 05:26:41,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:26:41,769 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:26:41,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c [2024-11-14 05:26:41,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/data/e1b228452/f9e540cbe4be4378b375034e3b2fcfa6/FLAG52e62d034 [2024-11-14 05:26:42,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/data/e1b228452/f9e540cbe4be4378b375034e3b2fcfa6 [2024-11-14 05:26:42,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:26:42,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:26:42,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:26:42,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:26:42,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:26:42,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac2c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42, skipping insertion in model container [2024-11-14 05:26:42,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:26:42,279 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_a2e9a959-b99a-4059-a311-c580be1cc8a2/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c[537,550] [2024-11-14 05:26:42,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:26:42,310 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:26:42,319 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_a2e9a959-b99a-4059-a311-c580be1cc8a2/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c[537,550] [2024-11-14 05:26:42,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:26:42,342 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:26:42,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42 WrapperNode [2024-11-14 05:26:42,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:26:42,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:26:42,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:26:42,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:26:42,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,373 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-14 05:26:42,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:26:42,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:26:42,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:26:42,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:26:42,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:26:42,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:26:42,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:26:42,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:26:42,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (1/1) ... [2024-11-14 05:26:42,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:26:42,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:42,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:26:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:26:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:26:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:26:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:26:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:26:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:26:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:26:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:26:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:26:42,554 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:26:42,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:26:42,800 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-14 05:26:42,801 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:26:42,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:26:42,863 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:26:42,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:42 BoogieIcfgContainer [2024-11-14 05:26:42,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:26:42,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:26:42,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:26:42,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:26:42,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:26:42" (1/3) ... [2024-11-14 05:26:42,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6d6299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:42, skipping insertion in model container [2024-11-14 05:26:42,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:42" (2/3) ... [2024-11-14 05:26:42,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6d6299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:42, skipping insertion in model container [2024-11-14 05:26:42,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:42" (3/3) ... [2024-11-14 05:26:42,877 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound5.c [2024-11-14 05:26:42,898 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:26:42,900 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm2_valuebound5.c that has 3 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:26:42,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:26:42,978 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;@21acebd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:26:42,978 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:26:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:26:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:26:42,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:42,991 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:42,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:42,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:42,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1227187241, now seen corresponding path program 1 times [2024-11-14 05:26:43,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79326178] [2024-11-14 05:26:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:43,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:43,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829208007] [2024-11-14 05:26:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:43,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:43,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:43,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:43,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:26:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:43,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:26:43,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:26:43,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:43,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:43,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79326178] [2024-11-14 05:26:43,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:26:43,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829208007] [2024-11-14 05:26:43,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829208007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:43,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815040927] [2024-11-14 05:26:43,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:43,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:26:43,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:43,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:26:43,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:26:43,706 INFO L87 Difference]: Start difference. First operand has 23 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 05:26:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:43,912 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2024-11-14 05:26:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:26:43,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 26 [2024-11-14 05:26:43,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:43,929 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:26:43,929 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:26:43,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:43,936 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:43,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:26:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:26:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 05:26:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:26:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2024-11-14 05:26:43,979 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 26 [2024-11-14 05:26:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:43,980 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2024-11-14 05:26:43,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 05:26:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-14 05:26:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:26:43,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:43,982 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:43,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:26:44,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:26:44,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:44,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1929141983, now seen corresponding path program 1 times [2024-11-14 05:26:44,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:44,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225473693] [2024-11-14 05:26:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:44,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:44,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215260309] [2024-11-14 05:26:44,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:44,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:44,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:44,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:44,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:26:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:45,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 05:26:45,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 05:26:59,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:27:01,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:01,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225473693] [2024-11-14 05:27:01,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:27:01,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215260309] [2024-11-14 05:27:01,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215260309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:01,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [876985372] [2024-11-14 05:27:01,549 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 05:27:01,549 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:01,553 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:01,559 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:01,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:03,177 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-14 05:27:03,225 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:27:03,229 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:27:20,647 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '426#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_11| Int)) (not (= (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_11|) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_11|)) 4294967296) (* (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_24| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_23|) 2147483648) 2)))))' at error location [2024-11-14 05:27:20,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:27:20,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:27:20,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2024-11-14 05:27:20,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959040245] [2024-11-14 05:27:20,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:27:20,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:27:20,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:27:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=505, Unknown=6, NotChecked=0, Total=600 [2024-11-14 05:27:20,652 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-14 05:27:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:23,954 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-11-14 05:27:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:27:23,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 33 [2024-11-14 05:27:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:23,955 INFO L225 Difference]: With dead ends: 32 [2024-11-14 05:27:23,955 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:27:23,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=102, Invalid=594, Unknown=6, NotChecked=0, Total=702 [2024-11-14 05:27:23,959 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:23,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 93 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 05:27:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:27:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:27:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:27:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:27:23,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2024-11-14 05:27:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:23,965 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:27:23,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-14 05:27:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:27:23,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:27:23,970 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:27:23,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:27:24,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-14 05:27:24,177 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 05:27:24,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:27:26,676 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:27:26,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:27:26 BoogieIcfgContainer [2024-11-14 05:27:26,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:27:26,706 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:27:26,706 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:27:26,706 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:27:26,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:42" (3/4) ... [2024-11-14 05:27:26,711 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:27:26,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:27:26,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 05:27:26,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-14 05:27:26,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 05:27:26,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:27:26,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:27:26,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:27:26,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:27:26,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:27:26,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:27:26,830 INFO L158 Benchmark]: Toolchain (without parser) took 44747.69ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 95.2MB in the beginning and 133.8MB in the end (delta: -38.6MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-14 05:27:26,830 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:27:26,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.76ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 83.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:27:26,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.41ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:27:26,833 INFO L158 Benchmark]: Boogie Preprocessor took 17.51ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.8MB in the end (delta: 618.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:27:26,833 INFO L158 Benchmark]: RCFGBuilder took 471.20ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 68.8MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:27:26,834 INFO L158 Benchmark]: TraceAbstraction took 43838.08ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 68.2MB in the beginning and 139.7MB in the end (delta: -71.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-14 05:27:26,834 INFO L158 Benchmark]: Witness Printer took 122.01ms. Allocated memory is still 192.9MB. Free memory was 137.7MB in the beginning and 133.8MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:27:26,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.76ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 83.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.41ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.51ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.8MB in the end (delta: 618.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 471.20ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 68.8MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 43838.08ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 68.2MB in the beginning and 139.7MB in the end (delta: -71.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 122.01ms. Allocated memory is still 192.9MB. Free memory was 137.7MB in the beginning and 133.8MB in the end (delta: 3.9MB). 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 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.2s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 33 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 20.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 2 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 92/98 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((unsigned long long) a * b) % 2147483648) * 2) == (((__int128) ((unsigned long long) v * y) + ((unsigned long long) u * x)) % 4294967296)) && (1 <= b)) - ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:27:26,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e9a959-b99a-4059-a311-c580be1cc8a2/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 Result: TRUE