./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.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_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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_e9315de7-066f-4532-82ca-76eb194bcf1d/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 7aa7b40afd745d6b11fb7961b18fb49ff63e465273ad6411781c67404da0d0d9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:16:17,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:16:17,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:16:17,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:16:17,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:16:17,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:16:17,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:16:17,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:16:17,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:16:17,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:16:17,180 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:16:17,180 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:16:17,180 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:16:17,180 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:16:17,180 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:16:17,180 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:16:17,181 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:16:17,181 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:16:17,181 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:16:17,181 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:16:17,181 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:16:17,181 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:16:17,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:16:17,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:16:17,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:16:17,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:16:17,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:16:17,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:16:17,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:16:17,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:16:17,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:16:17,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:16:17,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:16:17,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:16:17,186 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:16:17,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:16:17,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:16:17,187 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:16:17,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:16:17,187 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_e9315de7-066f-4532-82ca-76eb194bcf1d/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 -> 7aa7b40afd745d6b11fb7961b18fb49ff63e465273ad6411781c67404da0d0d9 [2024-11-14 05:16:17,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:16:17,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:16:17,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:16:17,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:16:17,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:16:17,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i Unable to find full path for "g++" [2024-11-14 05:16:19,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:16:20,137 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:16:20,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i [2024-11-14 05:16:20,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/d7cfc2d0b/f9143434872041e482f14981882a3865/FLAGa5fc66d75 [2024-11-14 05:16:20,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/d7cfc2d0b/f9143434872041e482f14981882a3865 [2024-11-14 05:16:20,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:16:20,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:16:20,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:20,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:16:20,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:16:20,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6b54db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20, skipping insertion in model container [2024-11-14 05:16:20,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:16:20,377 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_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i[913,926] [2024-11-14 05:16:20,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:20,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:16:20,483 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_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i[913,926] [2024-11-14 05:16:20,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:20,528 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:16:20,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20 WrapperNode [2024-11-14 05:16:20,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:20,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:20,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:16:20,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:16:20,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,601 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-14 05:16:20,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:20,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:16:20,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:16:20,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:16:20,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:16:20,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:16:20,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:16:20,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:16:20,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (1/1) ... [2024-11-14 05:16:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:16:20,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:20,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:16:20,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:16:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:16:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:16:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:16:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:16:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:16:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:16:20,860 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:16:20,863 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:16:21,241 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 05:16:21,241 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:16:21,418 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:16:21,419 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:16:21,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:21 BoogieIcfgContainer [2024-11-14 05:16:21,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:16:21,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:16:21,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:16:21,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:16:21,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:16:20" (1/3) ... [2024-11-14 05:16:21,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf0436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:21, skipping insertion in model container [2024-11-14 05:16:21,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:20" (2/3) ... [2024-11-14 05:16:21,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf0436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:21, skipping insertion in model container [2024-11-14 05:16:21,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:21" (3/3) ... [2024-11-14 05:16:21,438 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-84.i [2024-11-14 05:16:21,458 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:16:21,461 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-84.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:16:21,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:16:21,570 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;@7877d923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:16:21,570 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:16:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:16:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 05:16:21,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:21,589 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:21,589 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:16:21,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2066569603, now seen corresponding path program 1 times [2024-11-14 05:16:21,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:21,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315335195] [2024-11-14 05:16:21,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:21,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:16:22,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464661526] [2024-11-14 05:16:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:22,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:16:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:22,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:16:22,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:16:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:16:22,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:16:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:16:22,538 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:16:22,542 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:16:22,543 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:16:22,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:16:22,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:16:22,751 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:16:22,877 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:16:22,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:16:22 BoogieIcfgContainer [2024-11-14 05:16:22,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:16:22,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:16:22,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:16:22,888 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:16:22,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:21" (3/4) ... [2024-11-14 05:16:22,895 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:16:22,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:16:22,901 INFO L158 Benchmark]: Toolchain (without parser) took 2731.29ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 54.2MB in the end (delta: 38.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-11-14 05:16:22,902 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:16:22,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.31ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.3MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:16:22,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.63ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:16:22,906 INFO L158 Benchmark]: Boogie Preprocessor took 61.83ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 74.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:16:22,906 INFO L158 Benchmark]: RCFGBuilder took 755.24ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 44.7MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:16:22,907 INFO L158 Benchmark]: TraceAbstraction took 1461.27ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 54.2MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:16:22,907 INFO L158 Benchmark]: Witness Printer took 12.71ms. Allocated memory is still 117.4MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:16:22,911 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.31ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.3MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.63ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.83ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 74.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 755.24ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 44.7MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1461.27ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 54.2MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 12.71ms. Allocated memory is still 117.4MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 100, overapproximation of someBinaryFLOATComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] unsigned char var_1_4 = 25; [L24] unsigned char var_1_5 = 64; [L25] unsigned char var_1_6 = 8; [L26] unsigned char var_1_7 = 0; [L27] unsigned short int var_1_8 = 64; [L28] unsigned char var_1_9 = 1; [L29] unsigned short int var_1_10 = 27843; [L30] signed short int var_1_11 = -4; [L31] unsigned char var_1_13 = 128; [L32] unsigned char var_1_14 = 5; [L33] signed short int var_1_15 = 28020; [L34] signed short int var_1_16 = 128; [L35] float var_1_17 = 10000000000000.926; [L36] float var_1_18 = 1000000.6; [L37] unsigned short int last_1_var_1_8 = 64; [L38] signed short int last_1_var_1_11 = -4; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] CALL updateLastVariables() [L96] last_1_var_1_8 = var_1_8 [L97] last_1_var_1_11 = var_1_11 [L107] RET updateLastVariables() [L108] CALL updateVariables() [L64] var_1_4 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L66] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L67] var_1_5 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L69] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=8, var_1_7=0, var_1_8=64, var_1_9=1] [L70] var_1_6 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_7=0, var_1_8=64, var_1_9=1] [L72] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=0, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=0, var_1_8=64, var_1_9=1] [L73] var_1_7 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_8=64, var_1_9=1] [L75] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=1] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=1] [L76] var_1_9 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=27843, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L79] var_1_10 = __VERIFIER_nondet_ushort() [L80] CALL assume_abort_if_not(var_1_10 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 >= 16383) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_10 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_10 <= 32767) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=128, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L82] var_1_13 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_13 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 >= 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_13 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 <= 255) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=5, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L85] var_1_14 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_14 != 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 != 127) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=28020, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L89] var_1_15 = __VERIFIER_nondet_short() [L90] CALL assume_abort_if_not(var_1_15 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 >= 16383) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_15 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 <= 32766) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_18=5000003/5, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L92] var_1_18 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=128, var_1_17=5000000000000463/500, var_1_1=128, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L108] RET updateVariables() [L109] CALL step() [L42] signed long int stepLocal_0 = last_1_var_1_11; [L43] COND TRUE stepLocal_0 != last_1_var_1_8 [L44] var_1_1 = (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))) [L48] COND FALSE !(\read(var_1_9)) [L51] COND TRUE ! (var_1_5 > var_1_10) [L52] var_1_16 = (32 - 8) [L56] var_1_17 = var_1_18 [L57] COND FALSE !(var_1_1 < var_1_16) [L109] RET step() [L110] CALL, EXPR property() [L100-L101] return (((((last_1_var_1_11 != last_1_var_1_8) ? (var_1_1 == ((unsigned char) (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))))) : (var_1_1 == ((unsigned char) var_1_4))) && (var_1_9 ? (var_1_8 == ((unsigned short int) ((var_1_10 + 23103) - (32 + var_1_6)))) : 1)) && ((var_1_1 < var_1_16) ? ((((- 8) / (var_1_13 - var_1_14)) >= var_1_6) ? (var_1_11 == ((signed short int) (var_1_16 - (var_1_15 - var_1_14)))) : 1) : 1)) && ((! (var_1_5 > var_1_10)) ? (var_1_16 == ((signed short int) (32 - 8))) : (var_1_16 == ((signed short int) (var_1_13 - var_1_4))))) && (var_1_17 == ((float) var_1_18)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=24, var_1_17=2, var_1_18=2, var_1_1=26, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=-4, last_1_var_1_8=64, var_1_10=-49153, var_1_11=-4, var_1_13=127, var_1_14=120, var_1_15=16383, var_1_16=24, var_1_17=2, var_1_18=2, var_1_1=26, var_1_4=280, var_1_5=-510, var_1_6=1, var_1_7=-510, var_1_8=64, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 20, 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=39occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:16:22,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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_e9315de7-066f-4532-82ca-76eb194bcf1d/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 7aa7b40afd745d6b11fb7961b18fb49ff63e465273ad6411781c67404da0d0d9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:16:26,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:16:26,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:16:26,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:16:26,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:16:26,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:16:26,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:16:26,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:16:26,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:16:26,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:16:26,381 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:16:26,381 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:16:26,381 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:16:26,381 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:16:26,382 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:16:26,382 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:16:26,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:16:26,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:16:26,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:16:26,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:16:26,385 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:16:26,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:16:26,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:16:26,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:16:26,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:16:26,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:16:26,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:16:26,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:16:26,387 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:16:26,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:16:26,388 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:16:26,388 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_e9315de7-066f-4532-82ca-76eb194bcf1d/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 -> 7aa7b40afd745d6b11fb7961b18fb49ff63e465273ad6411781c67404da0d0d9 [2024-11-14 05:16:26,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:16:26,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:16:26,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:16:26,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:16:26,789 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:16:26,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i Unable to find full path for "g++" [2024-11-14 05:16:29,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:16:29,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:16:29,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i [2024-11-14 05:16:29,404 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/803c04e7c/0bf3e790c9464b51b3c1694add0da696/FLAG1e0e71b20 [2024-11-14 05:16:29,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/data/803c04e7c/0bf3e790c9464b51b3c1694add0da696 [2024-11-14 05:16:29,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:16:29,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:16:29,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:29,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:16:29,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:16:29,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:29,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30112bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29, skipping insertion in model container [2024-11-14 05:16:29,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:29,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:16:29,708 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_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i[913,926] [2024-11-14 05:16:29,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:29,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:16:29,845 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_e9315de7-066f-4532-82ca-76eb194bcf1d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-84.i[913,926] [2024-11-14 05:16:29,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:29,915 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:16:29,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29 WrapperNode [2024-11-14 05:16:29,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:29,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:29,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:16:29,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:16:29,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:29,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:29,986 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-14 05:16:29,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:29,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:16:29,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:16:29,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:16:29,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:29,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:16:30,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:16:30,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:16:30,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:16:30,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (1/1) ... [2024-11-14 05:16:30,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:16:30,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:30,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:16:30,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:16:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:16:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:16:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:16:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:16:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:16:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:16:30,258 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:16:30,261 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:16:30,717 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 05:16:30,717 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:16:30,729 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:16:30,730 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:16:30,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:30 BoogieIcfgContainer [2024-11-14 05:16:30,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:16:30,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:16:30,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:16:30,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:16:30,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:16:29" (1/3) ... [2024-11-14 05:16:30,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6d0b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:30, skipping insertion in model container [2024-11-14 05:16:30,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:29" (2/3) ... [2024-11-14 05:16:30,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6d0b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:30, skipping insertion in model container [2024-11-14 05:16:30,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:30" (3/3) ... [2024-11-14 05:16:30,743 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-84.i [2024-11-14 05:16:30,764 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:16:30,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-84.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:16:30,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:16:30,880 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;@692c259e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:16:30,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:16:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:16:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:16:30,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:30,906 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:30,907 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:16:30,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -44021188, now seen corresponding path program 1 times [2024-11-14 05:16:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:16:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284066134] [2024-11-14 05:16:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:30,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:16:30,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:16:30,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:16:30,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:16:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:31,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:16:31,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:16:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-14 05:16:31,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:16:31,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:16:31,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284066134] [2024-11-14 05:16:31,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284066134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:16:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:16:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256448390] [2024-11-14 05:16:31,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:31,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:16:31,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:16:31,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:16:31,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:16:31,421 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:16:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:16:31,466 INFO L93 Difference]: Finished difference Result 103 states and 178 transitions. [2024-11-14 05:16:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:16:31,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2024-11-14 05:16:31,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:16:31,474 INFO L225 Difference]: With dead ends: 103 [2024-11-14 05:16:31,475 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 05:16:31,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:16:31,481 INFO L432 NwaCegarLoop]: 75 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, 75 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 [2024-11-14 05:16:31,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:16:31,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 05:16:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 05:16:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:16:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2024-11-14 05:16:31,533 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 124 [2024-11-14 05:16:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:16:31,534 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2024-11-14 05:16:31,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:16:31,535 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2024-11-14 05:16:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:16:31,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:31,538 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:31,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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)] Ended with exit code 0 [2024-11-14 05:16:31,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:16:31,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:16:31,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1060737092, now seen corresponding path program 1 times [2024-11-14 05:16:31,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:16:31,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504341219] [2024-11-14 05:16:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:16:31,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:16:31,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:16:31,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:16:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:32,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:16:32,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-14 05:23:54,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:23:54,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:23:54,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504341219] [2024-11-14 05:23:54,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504341219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:54,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:54,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 05:23:54,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865107793] [2024-11-14 05:23:54,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:54,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:23:54,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:23:54,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:23:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:23:54,305 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:23:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:56,908 INFO L93 Difference]: Finished difference Result 149 states and 205 transitions. [2024-11-14 05:23:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:23:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2024-11-14 05:23:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:56,912 INFO L225 Difference]: With dead ends: 149 [2024-11-14 05:23:56,913 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 05:23:56,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2024-11-14 05:23:56,914 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 193 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:56,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 335 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 05:23:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 05:23:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 108. [2024-11-14 05:23:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 64 states have (on average 1.234375) internal successors, (79), 64 states have internal predecessors, (79), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:23:56,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2024-11-14 05:23:56,975 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 124 [2024-11-14 05:23:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:56,976 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2024-11-14 05:23:56,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:23:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2024-11-14 05:23:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:23:56,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:56,979 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:56,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 [2024-11-14 05:23:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:23:57,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 714270270, now seen corresponding path program 1 times [2024-11-14 05:23:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:23:57,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144664719] [2024-11-14 05:23:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:57,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:23:57,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:23:57,190 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:23:57,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:23:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:57,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:23:57,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 410 proven. 48 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-14 05:23:57,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:57,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:23:57,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144664719] [2024-11-14 05:23:57,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144664719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:57,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [901487486] [2024-11-14 05:23:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:57,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:23:57,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:23:57,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:23:57,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 05:23:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:58,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:23:58,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 399 proven. 27 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-14 05:23:58,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:58,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [901487486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920925640] [2024-11-14 05:23:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:58,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:58,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:58,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:58,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:23:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:58,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:23:58,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 399 proven. 27 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-14 05:23:58,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:58,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920925640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:58,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:58,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2024-11-14 05:23:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577815260] [2024-11-14 05:23:58,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:58,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:23:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:23:58,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:23:58,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:23:58,712 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-14 05:23:59,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:59,049 INFO L93 Difference]: Finished difference Result 233 states and 331 transitions. [2024-11-14 05:23:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:23:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 124 [2024-11-14 05:23:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:59,056 INFO L225 Difference]: With dead ends: 233 [2024-11-14 05:23:59,056 INFO L226 Difference]: Without dead ends: 128 [2024-11-14 05:23:59,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:23:59,058 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 56 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:59,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 110 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:23:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-14 05:23:59,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2024-11-14 05:23:59,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 76 states have internal predecessors, (88), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:23:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 168 transitions. [2024-11-14 05:23:59,083 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 168 transitions. Word has length 124 [2024-11-14 05:23:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:59,084 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 168 transitions. [2024-11-14 05:23:59,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-14 05:23:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 168 transitions. [2024-11-14 05:23:59,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:23:59,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:59,086 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:59,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:23:59,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:23:59,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-14 05:23:59,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:23:59,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:59,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1870083718, now seen corresponding path program 1 times [2024-11-14 05:23:59,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:23:59,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405915352] [2024-11-14 05:23:59,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:23:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:23:59,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:23:59,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 (7)] Waiting until timeout for monitored process [2024-11-14 05:23:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:59,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:23:59,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-14 05:31:17,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:31:17,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:31:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405915352] [2024-11-14 05:31:17,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405915352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:17,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:31:17,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 05:31:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904900091] [2024-11-14 05:31:17,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:17,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:31:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:31:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:31:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:31:17,787 INFO L87 Difference]: Start difference. First operand 124 states and 168 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:31:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:20,400 INFO L93 Difference]: Finished difference Result 157 states and 203 transitions. [2024-11-14 05:31:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:31:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2024-11-14 05:31:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:20,403 INFO L225 Difference]: With dead ends: 157 [2024-11-14 05:31:20,403 INFO L226 Difference]: Without dead ends: 155 [2024-11-14 05:31:20,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2024-11-14 05:31:20,404 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 137 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:20,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 359 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 05:31:20,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-14 05:31:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 124. [2024-11-14 05:31:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 76 states have internal predecessors, (88), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:31:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 168 transitions. [2024-11-14 05:31:20,449 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 168 transitions. Word has length 124 [2024-11-14 05:31:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:20,450 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 168 transitions. [2024-11-14 05:31:20,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:31:20,450 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 168 transitions. [2024-11-14 05:31:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:31:20,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:20,456 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:20,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:31:20,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:20,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:20,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash -380678722, now seen corresponding path program 1 times [2024-11-14 05:31:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:20,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067913556] [2024-11-14 05:31:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:20,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:20,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:20,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:31:20,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 (8)] Waiting until timeout for monitored process [2024-11-14 05:31:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:20,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:31:20,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:31:21,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:31:21,028 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:31:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067913556] [2024-11-14 05:31:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067913556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:21,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:31:21,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:31:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598155660] [2024-11-14 05:31:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:21,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:31:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:31:21,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:31:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:31:21,030 INFO L87 Difference]: Start difference. First operand 124 states and 168 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:31:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:21,253 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2024-11-14 05:31:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:31:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2024-11-14 05:31:21,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:21,259 INFO L225 Difference]: With dead ends: 250 [2024-11-14 05:31:21,259 INFO L226 Difference]: Without dead ends: 129 [2024-11-14 05:31:21,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:31:21,261 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 51 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:21,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 279 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:31:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-14 05:31:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120. [2024-11-14 05:31:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 72 states have (on average 1.125) internal successors, (81), 72 states have internal predecessors, (81), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:31:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2024-11-14 05:31:21,284 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 124 [2024-11-14 05:31:21,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:21,284 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2024-11-14 05:31:21,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:31:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2024-11-14 05:31:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 05:31:21,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:21,286 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:21,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 (8)] Ended with exit code 0 [2024-11-14 05:31:21,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:21,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:21,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:21,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1241328218, now seen corresponding path program 1 times [2024-11-14 05:31:21,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:21,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796274137] [2024-11-14 05:31:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:21,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:21,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:21,489 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:31:21,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9315de7-066f-4532-82ca-76eb194bcf1d/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 (9)] Waiting until timeout for monitored process [2024-11-14 05:31:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:21,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:31:21,657 INFO L278 TraceCheckSpWp]: Computing forward predicates...