./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:32:43,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:32:43,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:32:43,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:32:43,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:32:44,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:32:44,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:32:44,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:32:44,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:32:44,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:32:44,030 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:32:44,031 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:32:44,031 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:32:44,031 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:32:44,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:32:44,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:32:44,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:32:44,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:32:44,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:44,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:32:44,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:32:44,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:32:44,034 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:32:44,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:32:44,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:32:44,035 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:32:44,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:32:44,035 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-11-13 23:32:44,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:32:44,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:32:44,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:32:44,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:32:44,376 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:32:44,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i Unable to find full path for "g++" [2024-11-13 23:32:46,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:46,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:46,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-11-13 23:32:46,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/d2645223f/3a8ec6110d6446b59696c33decc7dc49/FLAGf7cc1bd7e [2024-11-13 23:32:46,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/d2645223f/3a8ec6110d6446b59696c33decc7dc49 [2024-11-13 23:32:46,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:46,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:46,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:46,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:46,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:46,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc6d327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46, skipping insertion in model container [2024-11-13 23:32:46,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:46,755 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-11-13 23:32:46,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:46,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:46,817 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-11-13 23:32:46,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:46,859 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:46,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46 WrapperNode [2024-11-13 23:32:46,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:46,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:46,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:46,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:46,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,900 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-13 23:32:46,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:46,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:46,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:46,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:46,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:46,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:46,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:46,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:46,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (1/1) ... [2024-11-13 23:32:46,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:46,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:46,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:46,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:32:47,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:32:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:32:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:47,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:47,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:47,101 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:32:47,370 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 23:32:47,370 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:32:47,495 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:32:47,495 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:32:47,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:47 BoogieIcfgContainer [2024-11-13 23:32:47,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:32:47,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:32:47,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:32:47,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:32:47,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:46" (1/3) ... [2024-11-13 23:32:47,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2598cd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:47, skipping insertion in model container [2024-11-13 23:32:47,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:46" (2/3) ... [2024-11-13 23:32:47,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2598cd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:47, skipping insertion in model container [2024-11-13 23:32:47,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:47" (3/3) ... [2024-11-13 23:32:47,506 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-11-13 23:32:47,522 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:32:47,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-13.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:32:47,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:32:47,589 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;@6b12d65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:32:47,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:32:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:32:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 23:32:47,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:47,602 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:47,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:47,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash -878863336, now seen corresponding path program 1 times [2024-11-13 23:32:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:47,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689248128] [2024-11-13 23:32:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:47,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:32:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825687107] [2024-11-13 23:32:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:47,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:47,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:47,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:32:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:32:48,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:32:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:32:48,202 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:32:48,204 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:32:48,205 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:32:48,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:32:48,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 23:32:48,413 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:32:48,491 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:32:48,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:32:48 BoogieIcfgContainer [2024-11-13 23:32:48,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:32:48,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:32:48,497 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:32:48,497 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:32:48,498 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:47" (3/4) ... [2024-11-13 23:32:48,500 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:32:48,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:32:48,502 INFO L158 Benchmark]: Toolchain (without parser) took 1916.21ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 75.1MB in the end (delta: 17.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-13 23:32:48,503 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:48,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.78ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:32:48,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.86ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:48,506 INFO L158 Benchmark]: Boogie Preprocessor took 28.42ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:48,506 INFO L158 Benchmark]: RCFGBuilder took 565.87ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 54.3MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:32:48,507 INFO L158 Benchmark]: TraceAbstraction took 996.08ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 75.6MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:48,507 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 75.1MB in the end (delta: 553.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:48,510 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.78ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.86ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.42ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 565.87ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 54.3MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 996.08ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 75.6MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 75.1MB in the end (delta: 553.7kB). 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 someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryDOUBLEComparisonOperation at line 83. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] double var_1_12 = 128.4; [L32] double var_1_13 = 50.2; [L33] double var_1_14 = 3.8; [L34] double var_1_15 = 25.1; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L78] var_1_13 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L80] var_1_14 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L82] var_1_15 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=33, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=66] [L96] RET updateVariables() [L97] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) [L41] COND FALSE !(\read(var_1_2)) [L44] COND FALSE !((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) [L47] var_1_5 = 5 [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) [L52] COND TRUE stepLocal_1 < ((var_1_9 - var_1_10) - 16) [L53] var_1_8 = ((((var_1_10) > (32)) ? (var_1_10) : (32))) [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=1, var_1_7=-127, var_1_8=33, var_1_9=66] [L19] reach_error() VAL [isInitial=1, var_1_10=33, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=1, var_1_7=-127, var_1_8=33, var_1_9=66] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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, 116 NumberOfCodeBlocks, 116 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 [2024-11-13 23:32:48,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:32:51,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:32:51,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:32:51,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:32:51,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:32:51,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:32:51,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:32:51,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:32:51,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:32:51,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:32:51,293 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:32:51,293 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:32:51,293 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:32:51,293 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:32:51,294 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:32:51,294 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:32:51,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:32:51,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:32:51,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:32:51,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:51,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:32:51,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:32:51,298 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:32:51,298 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-11-13 23:32:51,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:32:51,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:32:51,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:32:51,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:32:51,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:32:51,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i Unable to find full path for "g++" [2024-11-13 23:32:53,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:53,847 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:53,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-11-13 23:32:53,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/934ed112b/fd597ce913d448bcb98922e4a6a46058/FLAG9a9df4ea9 [2024-11-13 23:32:54,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/data/934ed112b/fd597ce913d448bcb98922e4a6a46058 [2024-11-13 23:32:54,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:54,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:54,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:54,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:54,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:54,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679b15d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54, skipping insertion in model container [2024-11-13 23:32:54,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:54,223 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-11-13 23:32:54,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:54,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:54,296 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_81ea0e05-aeab-4284-9ddc-26b32b8bf589/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-11-13 23:32:54,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:54,345 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:54,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54 WrapperNode [2024-11-13 23:32:54,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:54,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:54,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:54,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:54,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,386 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-13 23:32:54,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:54,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:54,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:54,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:54,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:54,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:54,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:54,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:54,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (1/1) ... [2024-11-13 23:32:54,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:54,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:54,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:54,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:32:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:32:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:32:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:54,604 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:54,605 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:33:00,409 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 23:33:00,409 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:33:00,420 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:33:00,420 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:33:00,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:00 BoogieIcfgContainer [2024-11-13 23:33:00,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:33:00,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:33:00,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:33:00,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:33:00,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:54" (1/3) ... [2024-11-13 23:33:00,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dba44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:00, skipping insertion in model container [2024-11-13 23:33:00,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:54" (2/3) ... [2024-11-13 23:33:00,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dba44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:00, skipping insertion in model container [2024-11-13 23:33:00,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:00" (3/3) ... [2024-11-13 23:33:00,431 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-11-13 23:33:00,446 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:33:00,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-13.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:33:00,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:33:00,517 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;@6003d9d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:33:00,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:33:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:33:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 23:33:00,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:00,532 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:00,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:00,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:00,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1423052777, now seen corresponding path program 1 times [2024-11-13 23:33:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:33:00,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401853984] [2024-11-13 23:33:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:00,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:33:00,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:33:00,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:33:00,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:33:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:00,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:33:00,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-13 23:33:01,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:33:01,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:33:01,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401853984] [2024-11-13 23:33:01,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401853984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:01,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:01,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:33:01,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656527147] [2024-11-13 23:33:01,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:01,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:33:01,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:33:01,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:33:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:33:01,037 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-13 23:33:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:01,060 INFO L93 Difference]: Finished difference Result 91 states and 151 transitions. [2024-11-13 23:33:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:33:01,062 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-13 23:33:01,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:01,069 INFO L225 Difference]: With dead ends: 91 [2024-11-13 23:33:01,069 INFO L226 Difference]: Without dead ends: 45 [2024-11-13 23:33:01,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:33:01,075 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 [2024-11-13 23:33:01,078 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] [2024-11-13 23:33:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-13 23:33:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-13 23:33:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:33:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2024-11-13 23:33:01,129 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 98 [2024-11-13 23:33:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:01,131 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-11-13 23:33:01,132 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-13 23:33:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2024-11-13 23:33:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 23:33:01,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:01,138 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:01,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 [2024-11-13 23:33:01,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:33:01,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:01,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:01,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1400523431, now seen corresponding path program 1 times [2024-11-13 23:33:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:33:01,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938769102] [2024-11-13 23:33:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:01,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:33:01,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:33:01,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:33:01,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:33:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:01,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:01,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-13 23:33:02,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:33:02,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:33:02,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938769102] [2024-11-13 23:33:02,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938769102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:02,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:02,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:33:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272556125] [2024-11-13 23:33:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:02,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:33:02,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:33:02,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:33:02,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:02,109 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-13 23:33:04,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:33:05,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:33:08,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:33:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:08,609 INFO L93 Difference]: Finished difference Result 171 states and 243 transitions. [2024-11-13 23:33:08,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:33:08,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-11-13 23:33:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:08,627 INFO L225 Difference]: With dead ends: 171 [2024-11-13 23:33:08,627 INFO L226 Difference]: Without dead ends: 129 [2024-11-13 23:33:08,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:08,628 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 141 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:08,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 182 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2024-11-13 23:33:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-13 23:33:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-11-13 23:33:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 76 states have internal predecessors, (90), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-13 23:33:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2024-11-13 23:33:08,663 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 99 [2024-11-13 23:33:08,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:08,664 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2024-11-13 23:33:08,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-13 23:33:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2024-11-13 23:33:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 23:33:08,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:08,666 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:08,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 23:33:08,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:33:08,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:08,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2085097239, now seen corresponding path program 1 times [2024-11-13 23:33:08,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:33:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014233213] [2024-11-13 23:33:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:08,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:33:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:33:08,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:33:08,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ea0e05-aeab-4284-9ddc-26b32b8bf589/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 [2024-11-13 23:33:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:09,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:09,239 INFO L278 TraceCheckSpWp]: Computing forward predicates...