./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX --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 6b50568a5bee6511b42bf1cf0968d7f09eeaeacd32170fa25aff7f8f1a2e83cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:50:44,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:50:44,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:50:44,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:50:44,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:50:45,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:50:45,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:50:45,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:50:45,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:50:45,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:50:45,016 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:50:45,017 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:50:45,018 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:50:45,018 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:50:45,019 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:50:45,019 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:50:45,020 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:50:45,020 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:50:45,021 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:50:45,021 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:50:45,022 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:50:45,025 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:50:45,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:50:45,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:50:45,026 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:50:45,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:50:45,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:50:45,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:50:45,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:50:45,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:50:45,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:50:45,030 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:50:45,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:50:45,031 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:50:45,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:50:45,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:50:45,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:45,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:50:45,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:50:45,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:50:45,033 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:50:45,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:50:45,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:50:45,034 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:50:45,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:50:45,034 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b50568a5bee6511b42bf1cf0968d7f09eeaeacd32170fa25aff7f8f1a2e83cf [2023-11-12 00:50:45,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:50:45,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:50:45,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:50:45,418 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:50:45,419 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:50:45,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i [2023-11-12 00:50:48,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:50:49,113 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:50:49,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i [2023-11-12 00:50:49,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/b4e584717/1aa5142e164648c797a265e460581e6f/FLAGd9aa67c8b [2023-11-12 00:50:49,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/b4e584717/1aa5142e164648c797a265e460581e6f [2023-11-12 00:50:49,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:50:49,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:50:49,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:49,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:50:49,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:50:49,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28709fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49, skipping insertion in model container [2023-11-12 00:50:49,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,211 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:50:49,414 WARN L240 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_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i[913,926] [2023-11-12 00:50:49,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:49,504 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:50:49,522 WARN L240 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_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i[913,926] [2023-11-12 00:50:49,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:49,585 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:50:49,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49 WrapperNode [2023-11-12 00:50:49,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:49,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:49,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:50:49,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:50:49,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,653 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2023-11-12 00:50:49,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:49,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:50:49,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:50:49,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:50:49,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:50:49,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:50:49,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:50:49,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:50:49,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:49,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:50:49,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:50:49,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:50:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:50:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:50:49,793 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:50:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:50:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:50:49,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:50:49,906 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:50:49,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:50:50,278 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:50:50,520 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:50:50,520 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:50:50,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:50 BoogieIcfgContainer [2023-11-12 00:50:50,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:50:50,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:50:50,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:50:50,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:50:50,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:50:49" (1/3) ... [2023-11-12 00:50:50,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3f270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:50, skipping insertion in model container [2023-11-12 00:50:50,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49" (2/3) ... [2023-11-12 00:50:50,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3f270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:50, skipping insertion in model container [2023-11-12 00:50:50,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:50" (3/3) ... [2023-11-12 00:50:50,548 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-28.i [2023-11-12 00:50:50,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:50:50,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:50:50,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:50:50,621 INFO L357 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, mHoare=true, 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;@6318d609, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:50:50,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:50:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2023-11-12 00:50:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 00:50:50,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:50,638 INFO L195 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, 1] [2023-11-12 00:50:50,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:50,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash 612258883, now seen corresponding path program 1 times [2023-11-12 00:50:50,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:50,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613920174] [2023-11-12 00:50:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:50:51,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:50:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:50:51,279 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:50:51,281 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:50:51,282 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:50:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:50:51,290 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:50:51,294 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:50:51,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:50:51 BoogieIcfgContainer [2023-11-12 00:50:51,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:50:51,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:50:51,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:50:51,365 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:50:51,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:50" (3/4) ... [2023-11-12 00:50:51,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:50:51,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:50:51,371 INFO L158 Benchmark]: Toolchain (without parser) took 2212.30ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 111.4MB in the beginning and 155.5MB in the end (delta: -44.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-12 00:50:51,371 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:50:51,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.58ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 98.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:50:51,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.49ms. Allocated memory is still 159.4MB. Free memory was 98.7MB in the beginning and 96.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:50:51,373 INFO L158 Benchmark]: Boogie Preprocessor took 35.95ms. Allocated memory is still 159.4MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:50:51,374 INFO L158 Benchmark]: RCFGBuilder took 830.59ms. Allocated memory is still 159.4MB. Free memory was 95.1MB in the beginning and 63.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:50:51,375 INFO L158 Benchmark]: TraceAbstraction took 823.81ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 62.7MB in the beginning and 156.5MB in the end (delta: -93.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:50:51,375 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 209.7MB. Free memory was 156.5MB in the beginning and 155.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:50:51,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.58ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 98.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.49ms. Allocated memory is still 159.4MB. Free memory was 98.7MB in the beginning and 96.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.95ms. Allocated memory is still 159.4MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 830.59ms. Allocated memory is still 159.4MB. Free memory was 95.1MB in the beginning and 63.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 823.81ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 62.7MB in the beginning and 156.5MB in the end (delta: -93.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 209.7MB. Free memory was 156.5MB in the beginning and 155.5MB in the end (delta: 1.0MB). 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 42, overapproximation of bitwiseOr at line 52. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 1; [L23] float var_1_2 = 63.75; [L24] float var_1_3 = 255.75; [L25] signed char var_1_5 = 10; [L26] signed char var_1_6 = 4; [L27] signed char var_1_7 = -10; [L28] float var_1_8 = 4.75; [L29] float var_1_9 = 99.5; [L30] float var_1_10 = 255.9; [L31] float var_1_11 = 24.85; [L32] signed long int var_1_12 = -2; [L33] signed long int var_1_13 = 1629954775; [L34] signed long int var_1_15 = 1928642731; [L35] signed short int var_1_18 = 0; [L36] unsigned short int var_1_19 = 5; [L91] isInitial = 1 [L92] FCALL initially() [L93] COND TRUE 1 [L94] FCALL updateLastVariables() [L95] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1023/4, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1023/4, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L62] var_1_3 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L64] var_1_5 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L66] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=4, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L67] var_1_6 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L69] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-10, var_1_8=19/4, var_1_9=199/2] [L70] var_1_7 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=199/2] [L72] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=199/2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=199/2] [L73] var_1_9 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2559/10, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L75] var_1_10 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L77] var_1_13 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_13 >= 1073741822) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_13 >= 1073741822) VAL [isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L79] CALL assume_abort_if_not(var_1_13 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_13 <= 2147483646) VAL [isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L80] var_1_15 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_15 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 >= 1073741823) VAL [isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L82] CALL assume_abort_if_not(var_1_15 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_15 <= 2147483646) VAL [isInitial=1, var_1_10=19/4, var_1_11=497/20, var_1_12=-2, var_1_13=1073741822, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L95] RET updateVariables() [L96] CALL step() [L40] signed long int stepLocal_0 = -4; [L41] COND TRUE stepLocal_0 < var_1_6 [L42] var_1_8 = ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) [L44] var_1_11 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) [L45] var_1_18 = var_1_5 [L46] var_1_19 = var_1_6 [L47] COND FALSE !((var_1_2 - var_1_3) <= (- var_1_8)) [L50] var_1_1 = var_1_5 [L52] EXPR var_1_6 | 5 [L52] signed long int stepLocal_1 = var_1_6 | 5; [L53] COND FALSE !(stepLocal_1 <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) [L56] var_1_12 = (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19)) [L96] RET step() [L97] CALL, EXPR property() [L87] EXPR (((((var_1_2 - var_1_3) <= (- var_1_8)) ? (var_1_1 == ((signed char) (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))))) : (var_1_1 == ((signed char) var_1_5))) && ((-4 < var_1_6) ? (var_1_8 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1)) && (var_1_11 == ((float) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) && (((var_1_6 | 5) <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) ? (var_1_12 == ((signed long int) (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))))) : (var_1_12 == ((signed long int) (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19))))) [L87-L88] return (((((((var_1_2 - var_1_3) <= (- var_1_8)) ? (var_1_1 == ((signed char) (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))))) : (var_1_1 == ((signed char) var_1_5))) && ((-4 < var_1_6) ? (var_1_8 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1)) && (var_1_11 == ((float) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) && (((var_1_6 | 5) <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) ? (var_1_12 == ((signed long int) (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))))) : (var_1_12 == ((signed long int) (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19)))))) && (var_1_18 == ((signed short int) var_1_5))) && (var_1_19 == ((unsigned short int) var_1_6)) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=19/4, var_1_11=19/4, var_1_12=1, var_1_13=1073741822, var_1_15=1073741823, var_1_18=-1, var_1_19=1, var_1_1=-1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=19/4, var_1_11=19/4, var_1_12=1, var_1_13=1073741822, var_1_15=1073741823, var_1_18=-1, var_1_19=1, var_1_1=-1, var_1_3=1928642736, var_1_5=-1, var_1_6=1, var_1_7=-127, var_1_8=19/4, var_1_9=19/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=32occurred 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, 55 NumberOfCodeBlocks, 55 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 [2023-11-12 00:50:51,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX --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 6b50568a5bee6511b42bf1cf0968d7f09eeaeacd32170fa25aff7f8f1a2e83cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:50:54,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:50:54,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:50:54,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:50:54,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:50:54,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:50:54,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:50:54,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:50:54,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:50:54,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:50:54,309 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:50:54,309 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:50:54,310 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:50:54,311 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:50:54,312 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:50:54,312 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:50:54,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:50:54,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:50:54,315 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:50:54,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:50:54,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:50:54,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:50:54,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:50:54,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:50:54,319 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:50:54,319 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:50:54,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:50:54,320 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:50:54,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:50:54,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:50:54,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:50:54,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:50:54,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:50:54,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:54,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:50:54,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:50:54,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:50:54,325 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:50:54,326 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:50:54,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:50:54,327 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:50:54,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:50:54,328 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b50568a5bee6511b42bf1cf0968d7f09eeaeacd32170fa25aff7f8f1a2e83cf [2023-11-12 00:50:54,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:50:54,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:50:54,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:50:54,817 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:50:54,818 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:50:54,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i [2023-11-12 00:50:58,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:50:58,750 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:50:58,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i [2023-11-12 00:50:58,762 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/519d85a66/1c3d2c856cbe4af39a0e0962323e7af6/FLAGc41a5e7c5 [2023-11-12 00:50:58,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/data/519d85a66/1c3d2c856cbe4af39a0e0962323e7af6 [2023-11-12 00:50:58,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:50:58,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:50:58,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:58,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:50:58,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:50:58,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:58" (1/1) ... [2023-11-12 00:50:58,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0d5516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:58, skipping insertion in model container [2023-11-12 00:50:58,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:58" (1/1) ... [2023-11-12 00:50:58,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:50:59,038 WARN L240 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_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i[913,926] [2023-11-12 00:50:59,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:59,133 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:50:59,154 WARN L240 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_c679f259-e231-404e-81a1-ea711aed6953/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-28.i[913,926] [2023-11-12 00:50:59,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:59,234 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:50:59,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59 WrapperNode [2023-11-12 00:50:59,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:59,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:59,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:50:59,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:50:59,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,298 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-12 00:50:59,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:59,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:50:59,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:50:59,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:50:59,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:50:59,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:50:59,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:50:59,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:50:59,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (1/1) ... [2023-11-12 00:50:59,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:59,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:50:59,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:50:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:50:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:50:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:50:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:50:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:50:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:50:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:50:59,488 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:50:59,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:00,163 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:00,170 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:00,170 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:51:00,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:00 BoogieIcfgContainer [2023-11-12 00:51:00,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:00,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:00,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:00,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:00,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:50:58" (1/3) ... [2023-11-12 00:51:00,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b6aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:00, skipping insertion in model container [2023-11-12 00:51:00,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:59" (2/3) ... [2023-11-12 00:51:00,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b6aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:00, skipping insertion in model container [2023-11-12 00:51:00,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:00" (3/3) ... [2023-11-12 00:51:00,182 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-28.i [2023-11-12 00:51:00,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:00,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:51:00,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:00,257 INFO L357 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, mHoare=true, 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;@458f7223, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:00,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:51:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 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) [2023-11-12 00:51:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-12 00:51:00,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:00,279 INFO L195 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, 1, 1] [2023-11-12 00:51:00,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:00,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2128567644, now seen corresponding path program 1 times [2023-11-12 00:51:00,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:00,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173696944] [2023-11-12 00:51:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:00,305 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 [2023-11-12 00:51:00,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:00,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:51:00,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:00,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:51:00,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-12 00:51:00,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:00,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173696944] [2023-11-12 00:51:00,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173696944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:00,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:00,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:00,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967405901] [2023-11-12 00:51:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:00,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:51:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:00,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:51:00,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:00,823 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-12 00:51:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:00,868 INFO L93 Difference]: Finished difference Result 87 states and 140 transitions. [2023-11-12 00:51:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:51:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2023-11-12 00:51:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:00,881 INFO L225 Difference]: With dead ends: 87 [2023-11-12 00:51:00,881 INFO L226 Difference]: Without dead ends: 43 [2023-11-12 00:51:00,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:00,890 INFO L413 NwaCegarLoop]: 59 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, 59 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 [2023-11-12 00:51:00,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:00,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-12 00:51:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-12 00:51:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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) [2023-11-12 00:51:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2023-11-12 00:51:00,933 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 93 [2023-11-12 00:51:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:00,933 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2023-11-12 00:51:00,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-12 00:51:00,934 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2023-11-12 00:51:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-12 00:51:00,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:00,939 INFO L195 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, 1, 1] [2023-11-12 00:51:00,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:01,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:01,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:01,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1087616412, now seen corresponding path program 1 times [2023-11-12 00:51:01,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:01,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827108561] [2023-11-12 00:51:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:01,142 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 [2023-11-12 00:51:01,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:01,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:51:01,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c679f259-e231-404e-81a1-ea711aed6953/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:01,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 00:51:01,444 INFO L285 TraceCheckSpWp]: Computing forward predicates...