./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:31:26,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:31:26,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:31:26,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:31:26,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:31:27,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:31:27,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:31:27,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:31:27,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:31:27,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:31:27,015 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:31:27,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:31:27,016 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:31:27,016 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:31:27,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:31:27,016 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:31:27,016 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:31:27,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:31:27,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:31:27,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:31:27,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:31:27,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:31:27,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:31:27,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:31:27,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:31:27,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:31:27,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:31:27,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:27,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:31:27,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:31:27,021 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2024-11-14 03:31:27,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:31:27,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:31:27,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:31:27,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:31:27,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:31:27,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i Unable to find full path for "g++" [2024-11-14 03:31:29,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:31:29,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:31:29,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2024-11-14 03:31:29,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/d7533b7b0/2c08b8bbbe5640ca9b3358b80f23cf46/FLAG0db44483c [2024-11-14 03:31:29,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/d7533b7b0/2c08b8bbbe5640ca9b3358b80f23cf46 [2024-11-14 03:31:29,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:31:29,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:31:29,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:29,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:31:29,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:31:29,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:29" (1/1) ... [2024-11-14 03:31:29,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637e7655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:29, skipping insertion in model container [2024-11-14 03:31:29,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:29" (1/1) ... [2024-11-14 03:31:29,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:31:29,971 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2024-11-14 03:31:30,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:30,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:31:30,065 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2024-11-14 03:31:30,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:30,105 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:31:30,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30 WrapperNode [2024-11-14 03:31:30,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:30,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:30,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:31:30,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:31:30,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,157 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-14 03:31:30,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:30,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:31:30,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:31:30,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:31:30,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:31:30,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:31:30,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:31:30,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:31:30,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (1/1) ... [2024-11-14 03:31:30,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:30,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:30,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:31:30,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:31:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:31:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:31:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:31:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:31:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:31:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:31:30,386 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:31:30,388 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:31:30,793 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-14 03:31:30,794 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:31:31,045 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:31:31,045 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:31:31,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:31 BoogieIcfgContainer [2024-11-14 03:31:31,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:31:31,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:31:31,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:31:31,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:31:31,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:31:29" (1/3) ... [2024-11-14 03:31:31,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:31, skipping insertion in model container [2024-11-14 03:31:31,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:30" (2/3) ... [2024-11-14 03:31:31,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:31, skipping insertion in model container [2024-11-14 03:31:31,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:31" (3/3) ... [2024-11-14 03:31:31,061 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2024-11-14 03:31:31,081 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:31:31,084 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-82.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:31:31,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:31:31,170 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;@13e2ce37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:31:31,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:31:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:31:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:31:31,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:31,184 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:31,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:31:31,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:31,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2005521859, now seen corresponding path program 1 times [2024-11-14 03:31:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:31,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187331220] [2024-11-14 03:31:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:31,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:31:31,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:31:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:31:31,879 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:31:31,881 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:31:31,882 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:31:31,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:31:31,888 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:31:31,935 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:31:31,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:31:31 BoogieIcfgContainer [2024-11-14 03:31:31,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:31:31,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:31:31,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:31:31,939 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:31:31,939 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:31" (3/4) ... [2024-11-14 03:31:31,944 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:31:31,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:31:31,946 INFO L158 Benchmark]: Toolchain (without parser) took 2168.02ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 87.7MB in the end (delta: 31.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-11-14 03:31:31,949 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:31:31,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.51ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 106.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:31:31,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.11ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 102.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:31:31,950 INFO L158 Benchmark]: Boogie Preprocessor took 56.55ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:31:31,950 INFO L158 Benchmark]: RCFGBuilder took 830.91ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 62.6MB in the end (delta: 38.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 03:31:31,951 INFO L158 Benchmark]: TraceAbstraction took 889.38ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 87.7MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:31:31,951 INFO L158 Benchmark]: Witness Printer took 6.51ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 87.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:31:31,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.51ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 106.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.11ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 102.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.55ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 830.91ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 62.6MB in the end (delta: 38.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 889.38ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 87.7MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.51ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 87.7MB in the end (delta: 27.0kB). 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 74, overapproximation of someBinaryFLOATComparisonOperation at line 50, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryDOUBLEComparisonOperation at line 99. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 128.75; [L23] unsigned char var_1_2 = 1; [L24] float var_1_3 = 63.5; [L25] float var_1_4 = 255.5; [L26] unsigned char var_1_5 = 32; [L27] unsigned char var_1_9 = 25; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 16; [L30] unsigned char var_1_12 = 2; [L31] unsigned char var_1_14 = 5; [L32] unsigned char var_1_15 = 10; [L33] double var_1_16 = 3.75; [L34] unsigned char var_1_17 = 0; [L35] double var_1_18 = 255.5; [L36] unsigned char last_1_var_1_5 = 32; [L37] unsigned char last_1_var_1_12 = 2; [L38] unsigned char last_1_var_1_17 = 0; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L94] last_1_var_1_5 = var_1_5 [L95] last_1_var_1_12 = var_1_12 [L96] last_1_var_1_17 = var_1_17 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L70] var_1_2 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L72] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L73] var_1_3 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_4=511/2, var_1_5=32, var_1_9=25] [L75] var_1_4 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=25] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32] [L79] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L80] var_1_10 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L82] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L85] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L86] var_1_14 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L88] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L89] var_1_15 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L91] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=2, var_1_14=254, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=0, var_1_5=32, var_1_9=254] [L107] RET updateVariables() [L108] CALL step() [L42] EXPR last_1_var_1_17 | last_1_var_1_12 [L42] signed long int stepLocal_0 = last_1_var_1_17 | last_1_var_1_12; [L43] COND FALSE !((last_1_var_1_5 / -2) >= stepLocal_0) [L46] var_1_5 = (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) [L48] COND TRUE ! var_1_2 [L49] COND FALSE !(\read(var_1_2)) [L53] var_1_16 = var_1_4 [L54] var_1_17 = var_1_9 [L55] var_1_18 = var_1_3 [L56] unsigned char stepLocal_1 = var_1_9; [L57] COND TRUE (var_1_5 + var_1_11) >= stepLocal_1 [L58] COND TRUE ((((var_1_4) > ((var_1_1 * var_1_3))) ? (var_1_4) : ((var_1_1 * var_1_3)))) <= var_1_1 [L59] var_1_12 = ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) [L99] EXPR last_1_var_1_17 | last_1_var_1_12 [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) [L99-L100] return ((((((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))))) && (((var_1_5 + var_1_11) >= var_1_9) ? ((((((var_1_4) > ((var_1_1 * var_1_3))) ? (var_1_4) : ((var_1_1 * var_1_3)))) <= var_1_1) ? (var_1_12 == ((unsigned char) ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))))) : (var_1_2 ? (var_1_12 == ((unsigned char) (var_1_11 + var_1_15))) : 1)) : (var_1_12 == ((unsigned char) var_1_9)))) && (var_1_16 == ((double) var_1_4))) && (var_1_17 == ((unsigned char) var_1_9))) && (var_1_18 == ((double) var_1_3)) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=254, var_1_14=254, var_1_15=127, var_1_16=515/4, var_1_17=254, var_1_18=515/4, var_1_1=515/4, var_1_2=0, var_1_3=515/4, var_1_4=515/4, var_1_5=128, var_1_9=254] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=-32002, var_1_11=126, var_1_12=254, var_1_14=254, var_1_15=127, var_1_16=515/4, var_1_17=254, var_1_18=515/4, var_1_1=515/4, var_1_2=0, var_1_3=515/4, var_1_4=515/4, var_1_5=128, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 14, 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=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:31:31,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:31:34,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:31:34,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:31:34,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:31:34,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:31:34,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:31:34,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:31:34,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:31:34,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:31:34,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:31:34,932 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:31:34,932 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:31:34,934 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:31:34,934 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:31:34,934 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:31:34,934 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:31:34,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:31:34,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:31:34,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:31:34,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:31:34,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:31:34,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:31:34,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:31:34,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:34,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:31:34,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:31:34,938 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:31:34,938 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2024-11-14 03:31:35,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:31:35,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:31:35,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:31:35,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:31:35,248 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:31:35,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i Unable to find full path for "g++" [2024-11-14 03:31:37,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:31:37,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:31:37,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2024-11-14 03:31:37,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/2d0b859c7/1ecbe54cba6746a68e1a5f1c6ff70ed4/FLAGb70aa8236 [2024-11-14 03:31:37,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/data/2d0b859c7/1ecbe54cba6746a68e1a5f1c6ff70ed4 [2024-11-14 03:31:37,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:31:37,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:31:37,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:37,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:31:37,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:31:37,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510fdc34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37, skipping insertion in model container [2024-11-14 03:31:37,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:31:37,721 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2024-11-14 03:31:37,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:37,814 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:31:37,826 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_98a0fac1-4db0-44ef-91e0-b507fc00e84a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2024-11-14 03:31:37,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:37,899 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:31:37,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37 WrapperNode [2024-11-14 03:31:37,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:37,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:37,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:31:37,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:31:37,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,956 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2024-11-14 03:31:37,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:37,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:31:37,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:31:37,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:31:37,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:37,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:38,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:38,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:38,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:31:38,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:31:38,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:31:38,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:31:38,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (1/1) ... [2024-11-14 03:31:38,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:38,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:38,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:31:38,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:31:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:31:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:31:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:31:38,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:31:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:31:38,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:31:38,152 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:31:38,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:31:39,807 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 03:31:39,807 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:31:39,821 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:31:39,822 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:31:39,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:39 BoogieIcfgContainer [2024-11-14 03:31:39,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:31:39,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:31:39,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:31:39,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:31:39,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:31:37" (1/3) ... [2024-11-14 03:31:39,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22523a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:39, skipping insertion in model container [2024-11-14 03:31:39,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:37" (2/3) ... [2024-11-14 03:31:39,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22523a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:39, skipping insertion in model container [2024-11-14 03:31:39,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:39" (3/3) ... [2024-11-14 03:31:39,835 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2024-11-14 03:31:39,854 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:31:39,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-82.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:31:39,936 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:31:39,954 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;@3a4f04a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:31:39,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:31:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:31:39,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 03:31:39,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:39,971 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:39,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:31:39,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash 921489623, now seen corresponding path program 1 times [2024-11-14 03:31:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:31:39,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276678792] [2024-11-14 03:31:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:39,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:31:39,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:31:39,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:31:40,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:31:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:40,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:31:40,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-14 03:31:40,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:31:40,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:31:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276678792] [2024-11-14 03:31:40,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276678792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:40,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:40,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:31:40,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65486228] [2024-11-14 03:31:40,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:40,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:31:40,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:31:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:31:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:31:40,395 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 03:31:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:40,428 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2024-11-14 03:31:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:31:40,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-14 03:31:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:40,437 INFO L225 Difference]: With dead ends: 89 [2024-11-14 03:31:40,438 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 03:31:40,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 03:31:40,449 INFO L432 NwaCegarLoop]: 63 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, 63 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 03:31:40,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:31:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 03:31:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 03:31:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:31:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2024-11-14 03:31:40,503 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 91 [2024-11-14 03:31:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:40,505 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2024-11-14 03:31:40,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 03:31:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2024-11-14 03:31:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 03:31:40,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:40,514 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:40,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 03:31:40,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:31:40,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:31:40,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -574452133, now seen corresponding path program 1 times [2024-11-14 03:31:40,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:31:40,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832195458] [2024-11-14 03:31:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:40,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:31:40,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:31:40,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:31:40,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:31:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:40,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:31:40,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-14 03:31:41,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:31:41,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:31:41,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832195458] [2024-11-14 03:31:41,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832195458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:41,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:41,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:31:41,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015723831] [2024-11-14 03:31:41,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:41,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:31:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:31:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:31:41,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:31:41,545 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 03:31:43,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:43,833 INFO L93 Difference]: Finished difference Result 127 states and 184 transitions. [2024-11-14 03:31:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:31:43,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-14 03:31:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:43,847 INFO L225 Difference]: With dead ends: 127 [2024-11-14 03:31:43,848 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 03:31:43,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:31:43,849 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:43,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 199 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 03:31:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 03:31:43,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2024-11-14 03:31:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 03:31:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2024-11-14 03:31:43,913 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 91 [2024-11-14 03:31:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:43,915 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2024-11-14 03:31:43,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 03:31:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2024-11-14 03:31:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 03:31:43,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:43,918 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:43,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/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 03:31:44,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:31:44,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:31:44,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:44,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1383798759, now seen corresponding path program 1 times [2024-11-14 03:31:44,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:31:44,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541619399] [2024-11-14 03:31:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:44,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:31:44,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:31:44,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:31:44,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98a0fac1-4db0-44ef-91e0-b507fc00e84a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:31:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:44,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:31:44,329 INFO L278 TraceCheckSpWp]: Computing forward predicates...