./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ --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 a51318993ea13721f6dafa900810134bb32711cd41e6503c3f74581bbdabe004 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:16,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:16,718 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:12:16,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:16,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:16,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:16,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:16,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:16,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:16,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:16,768 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:16,769 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:16,770 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:16,770 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:12:16,771 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:16,772 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:16,772 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:12:16,773 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:12:16,774 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:16,775 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:12:16,776 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:12:16,777 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:12:16,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:16,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:16,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:16,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:16,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:16,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:16,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:16,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:16,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:16,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:16,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:16,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:16,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:16,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:16,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:16,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:16,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:16,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:16,797 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:12:16,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:12:16,798 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:16,798 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:16,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:16,799 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a51318993ea13721f6dafa900810134bb32711cd41e6503c3f74581bbdabe004 [2023-11-19 05:12:17,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:17,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:17,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:17,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:17,162 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:17,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:20,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:20,676 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:20,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:20,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/3ba3c11ad/52cbcb6de627420aa2e0811047d19ae0/FLAG0bffe4c44 [2023-11-19 05:12:20,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/3ba3c11ad/52cbcb6de627420aa2e0811047d19ae0 [2023-11-19 05:12:20,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:20,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:20,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:20,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:20,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:20,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:20" (1/1) ... [2023-11-19 05:12:20,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50746dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:20, skipping insertion in model container [2023-11-19 05:12:20,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:20" (1/1) ... [2023-11-19 05:12:20,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:20,947 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i[913,926] [2023-11-19 05:12:20,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:21,006 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:21,017 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i[913,926] [2023-11-19 05:12:21,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:21,056 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:21,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21 WrapperNode [2023-11-19 05:12:21,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:21,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:21,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:21,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:21,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,114 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-19 05:12:21,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:21,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:21,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:21,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:21,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:21,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:21,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:21,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:21,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:21,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:21,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:21,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:21,264 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:12:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:21,389 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:21,392 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:21,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:21,906 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:21,906 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:21,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:21 BoogieIcfgContainer [2023-11-19 05:12:21,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:21,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:21,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:21,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:21,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:20" (1/3) ... [2023-11-19 05:12:21,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@931580d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:21, skipping insertion in model container [2023-11-19 05:12:21,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21" (2/3) ... [2023-11-19 05:12:21,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@931580d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:21, skipping insertion in model container [2023-11-19 05:12:21,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:21" (3/3) ... [2023-11-19 05:12:21,929 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:21,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:21,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:22,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:22,027 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;@2dde13e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:22,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 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) [2023-11-19 05:12:22,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 05:12:22,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:22,043 INFO L195 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] [2023-11-19 05:12:22,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:22,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1930683420, now seen corresponding path program 1 times [2023-11-19 05:12:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:22,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217912077] [2023-11-19 05:12:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:22,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:22,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:12:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:22,807 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:12:22,810 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:12:22,811 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:22,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:22,820 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:12:22,824 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:22,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:22 BoogieIcfgContainer [2023-11-19 05:12:22,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:22,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:22,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:22,930 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:22,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:21" (3/4) ... [2023-11-19 05:12:22,934 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:12:22,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:22,937 INFO L158 Benchmark]: Toolchain (without parser) took 2231.44ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 129.1MB in the end (delta: 20.3MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,937 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:22,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.51ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 137.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.22ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 134.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,941 INFO L158 Benchmark]: Boogie Preprocessor took 46.47ms. Allocated memory is still 195.0MB. Free memory was 134.8MB in the beginning and 133.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,945 INFO L158 Benchmark]: RCFGBuilder took 748.61ms. Allocated memory is still 195.0MB. Free memory was 133.2MB in the beginning and 107.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,947 INFO L158 Benchmark]: TraceAbstraction took 1010.22ms. Allocated memory is still 195.0MB. Free memory was 106.0MB in the beginning and 130.2MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:22,949 INFO L158 Benchmark]: Witness Printer took 8.46ms. Allocated memory is still 195.0MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:22,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.51ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 137.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.22ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 134.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.47ms. Allocated memory is still 195.0MB. Free memory was 134.8MB in the beginning and 133.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.61ms. Allocated memory is still 195.0MB. Free memory was 133.2MB in the beginning and 107.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1010.22ms. Allocated memory is still 195.0MB. Free memory was 106.0MB in the beginning and 130.2MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.46ms. Allocated memory is still 195.0MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] signed char var_1_4 = 16; [L25] signed char var_1_5 = 4; [L26] signed char var_1_6 = 0; [L27] unsigned short int var_1_7 = 0; [L28] unsigned short int var_1_10 = 55182; [L29] unsigned char var_1_12 = 0; [L30] unsigned char var_1_14 = 1; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 100; [L33] float var_1_17 = 2.25; [L34] float var_1_18 = 199.4; [L35] signed char var_1_19 = -128; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L64] var_1_4 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=4, var_1_6=0, var_1_7=0] [L66] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=4, var_1_6=0, var_1_7=0] [L67] var_1_5 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L70] var_1_6 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_6 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= -127) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L72] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L73] var_1_10 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_10 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 32767) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L75] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L79] var_1_15 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L81] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L82] var_1_18 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=55187, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=55187, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L96] RET updateVariables() [L97] CALL step() [L39] COND FALSE !(! var_1_2) [L42] var_1_12 = ((! var_1_15) || (! (! 0))) [L44] var_1_16 = var_1_5 [L45] var_1_17 = var_1_18 [L46] var_1_19 = var_1_4 [L47] COND FALSE !(var_1_12 || (64.75f < var_1_17)) [L54] var_1_1 = var_1_4 [L56] COND FALSE !((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return ((((((var_1_12 || (64.75f < var_1_17)) ? (var_1_12 ? (var_1_1 == ((signed char) (var_1_4 - var_1_5))) : (var_1_1 == ((signed char) ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6)))))) : (var_1_1 == ((signed char) var_1_4))) && (((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) ? (var_1_7 == ((unsigned short int) (((((var_1_10 - (22925 - var_1_5))) < (var_1_16)) ? ((var_1_10 - (22925 - var_1_5))) : (var_1_16))))) : 1)) && ((! var_1_2) ? (var_1_12 == ((unsigned char) var_1_14)) : (var_1_12 == ((unsigned char) ((! var_1_15) || (! (! 0))))))) && (var_1_16 == ((unsigned char) var_1_5))) && (var_1_17 == ((float) var_1_18))) && (var_1_19 == ((signed char) var_1_4)) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=55187, var_1_18=55187, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=55187, var_1_18=55187, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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=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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 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 [2023-11-19 05:12:22,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ --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 a51318993ea13721f6dafa900810134bb32711cd41e6503c3f74581bbdabe004 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:25,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:25,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:12:25,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:25,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:25,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:25,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:25,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:25,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:25,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:25,906 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:25,906 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:25,907 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:25,908 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:25,909 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:25,909 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:25,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:25,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:25,912 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:25,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:25,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:25,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:25,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:25,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:25,922 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:12:25,923 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:12:25,923 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:12:25,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:25,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:25,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:25,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:25,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:12:25,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:25,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:25,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:25,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:25,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:25,929 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:12:25,929 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:12:25,931 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:25,931 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:25,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:25,932 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a51318993ea13721f6dafa900810134bb32711cd41e6503c3f74581bbdabe004 [2023-11-19 05:12:26,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:26,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:26,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:26,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:26,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:26,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:29,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:29,989 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:29,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:29,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/b49ea187d/0f5b1bad456e46f9916122537a5cf2e0/FLAG5adb2ed36 [2023-11-19 05:12:30,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/data/b49ea187d/0f5b1bad456e46f9916122537a5cf2e0 [2023-11-19 05:12:30,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:30,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:30,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:30,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:30,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:30,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183eb8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30, skipping insertion in model container [2023-11-19 05:12:30,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,080 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:30,237 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i[913,926] [2023-11-19 05:12:30,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:30,304 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:30,320 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_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-24.i[913,926] [2023-11-19 05:12:30,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:30,366 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:30,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30 WrapperNode [2023-11-19 05:12:30,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:30,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:30,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:30,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:30,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,433 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-19 05:12:30,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:30,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:30,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:30,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:30,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:30,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:30,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:30,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:30,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (1/1) ... [2023-11-19 05:12:30,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:30,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:30,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:12:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:30,697 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:30,700 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:37,463 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:37,476 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:37,476 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:37,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:37 BoogieIcfgContainer [2023-11-19 05:12:37,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:37,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:37,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:37,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:37,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:30" (1/3) ... [2023-11-19 05:12:37,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581ad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:37, skipping insertion in model container [2023-11-19 05:12:37,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:30" (2/3) ... [2023-11-19 05:12:37,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581ad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:37, skipping insertion in model container [2023-11-19 05:12:37,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:37" (3/3) ... [2023-11-19 05:12:37,495 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-24.i [2023-11-19 05:12:37,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:37,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:37,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:37,585 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;@4e809ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:37,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 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) [2023-11-19 05:12:37,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:12:37,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:37,605 INFO L195 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] [2023-11-19 05:12:37,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:37,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash -35554996, now seen corresponding path program 1 times [2023-11-19 05:12:37,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:37,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025801580] [2023-11-19 05:12:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:37,628 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 [2023-11-19 05:12:37,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:37,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:12:37,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:12:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:38,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:12:38,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-19 05:12:38,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:38,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025801580] [2023-11-19 05:12:38,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025801580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:38,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:38,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22250047] [2023-11-19 05:12:38,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:38,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:12:38,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:12:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:38,851 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:12:38,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:38,880 INFO L93 Difference]: Finished difference Result 87 states and 145 transitions. [2023-11-19 05:12:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:12:38,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2023-11-19 05:12:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:38,890 INFO L225 Difference]: With dead ends: 87 [2023-11-19 05:12:38,891 INFO L226 Difference]: Without dead ends: 43 [2023-11-19 05:12:38,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:38,899 INFO L413 NwaCegarLoop]: 61 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, 61 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 [2023-11-19 05:12:38,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-19 05:12:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-19 05:12:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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) [2023-11-19 05:12:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2023-11-19 05:12:38,947 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 61 transitions. Word has length 96 [2023-11-19 05:12:38,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:38,948 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 61 transitions. [2023-11-19 05:12:38,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:12:38,948 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2023-11-19 05:12:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:12:38,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:38,954 INFO L195 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] [2023-11-19 05:12:38,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:39,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:12:39,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:39,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1725162186, now seen corresponding path program 1 times [2023-11-19 05:12:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:39,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664820815] [2023-11-19 05:12:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:39,178 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 [2023-11-19 05:12:39,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:39,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:12:39,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:12:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:40,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:12:40,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-19 05:12:42,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 05:12:43,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664820815] [2023-11-19 05:12:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664820815] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:12:43,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1361040592] [2023-11-19 05:12:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:43,475 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:12:43,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:12:43,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:12:43,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:12:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:45,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:12:45,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 194 proven. 12 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-19 05:12:45,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 05:12:46,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1361040592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:12:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973514604] [2023-11-19 05:12:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:46,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:46,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:46,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:12:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:47,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:12:47,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 194 proven. 12 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-19 05:12:47,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 05:12:48,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973514604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:12:48,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:12:48,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2023-11-19 05:12:48,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275872043] [2023-11-19 05:12:48,514 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:12:48,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:12:48,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:12:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:12:48,523 INFO L87 Difference]: Start difference. First operand 43 states and 61 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-19 05:12:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:56,011 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2023-11-19 05:12:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-19 05:12:56,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 96 [2023-11-19 05:12:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:56,018 INFO L225 Difference]: With dead ends: 190 [2023-11-19 05:12:56,018 INFO L226 Difference]: Without dead ends: 150 [2023-11-19 05:12:56,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 559 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2023-11-19 05:12:56,025 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 131 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:56,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 258 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-19 05:12:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-19 05:12:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 54. [2023-11-19 05:12:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:12:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2023-11-19 05:12:56,061 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 96 [2023-11-19 05:12:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:56,062 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2023-11-19 05:12:56,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-19 05:12:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2023-11-19 05:12:56,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:12:56,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:56,065 INFO L195 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] [2023-11-19 05:12:56,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:56,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:56,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 05:12:56,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:56,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:56,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:56,690 INFO L85 PathProgramCache]: Analyzing trace with hash 915815560, now seen corresponding path program 1 times [2023-11-19 05:12:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:56,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398460584] [2023-11-19 05:12:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:56,691 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 [2023-11-19 05:12:56,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:56,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:12:56,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6286cb72-6e47-4b4c-bb6e-511f1025c8b6/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:12:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:57,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 05:12:57,992 INFO L285 TraceCheckSpWp]: Computing forward predicates...