./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ee9ab0ce6c16857f5101fdd21f4b28f23af496d642a804f890a8c51cd803df8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:27,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:27,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:51:27,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:27,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:27,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:27,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:27,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:27,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:27,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:27,769 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:27,770 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:27,770 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:27,771 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:51:27,772 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:27,788 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:27,789 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:51:27,790 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:51:27,790 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:27,791 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:51:27,791 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:51:27,792 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:51:27,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:27,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:51:27,794 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:51:27,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:27,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:51:27,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:27,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:51:27,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:27,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:51:27,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:51:27,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:51:27,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:27,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:27,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:27,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:27,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:27,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:27,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:51:27,801 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:51:27,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:51:27,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:51:27,802 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:27,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:27,803 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee9ab0ce6c16857f5101fdd21f4b28f23af496d642a804f890a8c51cd803df8 [2023-11-12 00:51:28,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:28,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:28,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:28,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:28,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:28,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:31,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:31,313 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:31,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:31,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/51df29856/4eb4887db68a47b094ffb316deb9fc63/FLAGc8c193b92 [2023-11-12 00:51:31,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/51df29856/4eb4887db68a47b094ffb316deb9fc63 [2023-11-12 00:51:31,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:31,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:31,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:31,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:31,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:31,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525512b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31, skipping insertion in model container [2023-11-12 00:51:31,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:31,605 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i[913,926] [2023-11-12 00:51:31,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:31,669 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:31,683 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i[913,926] [2023-11-12 00:51:31,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:31,746 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:31,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31 WrapperNode [2023-11-12 00:51:31,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:31,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:31,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:31,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:31,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,831 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2023-11-12 00:51:31,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:31,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:31,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:31,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:31,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:31,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:31,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:31,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:31,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (1/1) ... [2023-11-12 00:51:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:31,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:31,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:31,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:51:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:51:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:51:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:32,099 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:51:32,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:32,514 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:32,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:32,871 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:51:32,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:32 BoogieIcfgContainer [2023-11-12 00:51:32,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:32,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:32,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:32,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:32,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:31" (1/3) ... [2023-11-12 00:51:32,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e8f462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:32, skipping insertion in model container [2023-11-12 00:51:32,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:31" (2/3) ... [2023-11-12 00:51:32,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e8f462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:32, skipping insertion in model container [2023-11-12 00:51:32,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:32" (3/3) ... [2023-11-12 00:51:32,890 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:32,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:32,914 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:51:32,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:32,981 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;@4b47eed4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:32,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:51:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:51:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-12 00:51:32,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:32,998 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:32,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:33,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1564697898, now seen corresponding path program 1 times [2023-11-12 00:51:33,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:33,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990008653] [2023-11-12 00:51:33,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:33,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:51:33,548 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:51:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:51:33,816 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:51:33,819 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:51:33,820 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:51:33,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:51:33,828 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:51:33,833 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:51:33,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:51:33 BoogieIcfgContainer [2023-11-12 00:51:33,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:51:33,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:51:33,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:51:33,946 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:51:33,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:32" (3/4) ... [2023-11-12 00:51:33,950 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:51:33,951 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:51:33,953 INFO L158 Benchmark]: Toolchain (without parser) took 2593.97ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 98.8MB in the beginning and 123.3MB in the end (delta: -24.5MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,953 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 146.8MB. Free memory is still 114.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:51:33,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.01ms. Allocated memory is still 146.8MB. Free memory was 98.8MB in the beginning and 85.6MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.11ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 82.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,958 INFO L158 Benchmark]: Boogie Preprocessor took 53.24ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,962 INFO L158 Benchmark]: RCFGBuilder took 981.14ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 80.9MB in the beginning and 171.5MB in the end (delta: -90.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,963 INFO L158 Benchmark]: TraceAbstraction took 1063.62ms. Allocated memory is still 218.1MB. Free memory was 170.5MB in the beginning and 123.3MB in the end (delta: 47.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:33,964 INFO L158 Benchmark]: Witness Printer took 6.25ms. Allocated memory is still 218.1MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:51:33,972 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 146.8MB. Free memory is still 114.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.01ms. Allocated memory is still 146.8MB. Free memory was 98.8MB in the beginning and 85.6MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.11ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 82.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.24ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 981.14ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 80.9MB in the beginning and 171.5MB in the end (delta: -90.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1063.62ms. Allocated memory is still 218.1MB. Free memory was 170.5MB in the beginning and 123.3MB in the end (delta: 47.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 6.25ms. Allocated memory is still 218.1MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of bitwiseOr at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 9999.5; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 4.5; [L25] double var_1_4 = 2.5; [L26] double var_1_5 = 0.0; [L27] double var_1_6 = 999999999999.3; [L28] signed char var_1_7 = -128; [L29] signed char var_1_11 = 16; [L30] signed char var_1_12 = 16; [L31] unsigned short int var_1_13 = 5; [L32] unsigned char var_1_14 = 1; [L33] unsigned short int var_1_15 = 16; [L34] unsigned short int var_1_16 = 32647; [L35] unsigned short int var_1_17 = 128; [L36] signed long int var_1_18 = -8; [L37] unsigned short int last_1_var_1_13 = 5; [L38] signed long int last_1_var_1_18 = -8; [L110] isInitial = 1 [L111] FCALL initially() [L112] COND TRUE 1 [L113] CALL updateLastVariables() [L102] last_1_var_1_13 = var_1_13 [L103] last_1_var_1_18 = var_1_18 [L113] RET updateLastVariables() [L114] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_3=9/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_3=9/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=9/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=9/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L74] var_1_3 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=5/2, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L76] var_1_4 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=0, var_1_6=9999999999993/10, var_1_7=-128] [L78] var_1_5 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_5 >= 4611686.018427382800e+12F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=9999999999993/10, var_1_7=-128] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_5 >= 4611686.018427382800e+12F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=9999999999993/10, var_1_7=-128] [L80] var_1_6 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=16, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L82] var_1_11 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L84] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=16, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L85] var_1_12 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L87] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L88] var_1_14 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L90] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=16, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L91] var_1_15 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L93] CALL assume_abort_if_not(var_1_15 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_15 <= 65534) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32647, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L94] var_1_16 = __VERIFIER_nondet_ushort() [L95] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L96] CALL assume_abort_if_not(var_1_16 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_16 <= 32767) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=128, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L97] var_1_17 = __VERIFIER_nondet_ushort() [L98] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L99] CALL assume_abort_if_not(var_1_17 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_17 <= 32767) VAL [isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=5, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=-8, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=-128] [L114] RET updateVariables() [L115] CALL step() [L42] signed long int stepLocal_0 = (((-25) < (last_1_var_1_18)) ? (-25) : (last_1_var_1_18)); [L43] EXPR last_1_var_1_18 ^ last_1_var_1_13 [L43] COND FALSE !(stepLocal_0 != (last_1_var_1_18 ^ last_1_var_1_13)) [L48] var_1_7 = ((((var_1_12) < (var_1_11)) ? (var_1_12) : (var_1_11))) [L50] unsigned char stepLocal_1 = var_1_11 >= var_1_7; [L51] COND TRUE stepLocal_1 && var_1_14 [L52] var_1_13 = ((((var_1_15) < (100)) ? (var_1_15) : (100))) [L56] signed char stepLocal_2 = var_1_7; [L57] COND FALSE !(stepLocal_2 > var_1_16) [L64] var_1_18 = var_1_15 [L66] COND TRUE \read(var_1_2) [L67] var_1_1 = ((((var_1_3) > ((var_1_4 - (var_1_5 - var_1_6)))) ? (var_1_3) : ((var_1_4 - (var_1_5 - var_1_6))))) [L115] RET step() [L116] CALL, EXPR property() [L106] EXPR (var_1_2 ? (var_1_1 == ((double) ((((var_1_3) > ((var_1_4 - (var_1_5 - var_1_6)))) ? (var_1_3) : ((var_1_4 - (var_1_5 - var_1_6))))))) : 1) && ((((((-25) < (last_1_var_1_18)) ? (-25) : (last_1_var_1_18))) != (last_1_var_1_18 ^ last_1_var_1_13)) ? (var_1_2 ? (var_1_7 == ((signed char) (var_1_11 + var_1_12))) : 1) : (var_1_7 == ((signed char) ((((var_1_12) < (var_1_11)) ? (var_1_12) : (var_1_11)))))) [L106-L107] return (((var_1_2 ? (var_1_1 == ((double) ((((var_1_3) > ((var_1_4 - (var_1_5 - var_1_6)))) ? (var_1_3) : ((var_1_4 - (var_1_5 - var_1_6))))))) : 1) && ((((((-25) < (last_1_var_1_18)) ? (-25) : (last_1_var_1_18))) != (last_1_var_1_18 ^ last_1_var_1_13)) ? (var_1_2 ? (var_1_7 == ((signed char) (var_1_11 + var_1_12))) : 1) : (var_1_7 == ((signed char) ((((var_1_12) < (var_1_11)) ? (var_1_12) : (var_1_11))))))) && (((var_1_11 >= var_1_7) && var_1_14) ? (var_1_13 == ((unsigned short int) ((((var_1_15) < (100)) ? (var_1_15) : (100))))) : (var_1_13 == ((unsigned short int) ((var_1_16 - 5) + var_1_17))))) && ((var_1_7 > var_1_16) ? ((var_1_3 < (var_1_5 - var_1_6)) ? (var_1_18 == ((signed long int) ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))) : (var_1_18 == ((signed long int) var_1_13))) : (var_1_18 == ((signed long int) var_1_15))) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=100, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=101, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=5, last_1_var_1_18=-8, var_1_11=4, var_1_12=4, var_1_13=100, var_1_14=1, var_1_15=101, var_1_16=32767, var_1_17=32767, var_1_18=101, var_1_1=19999/2, var_1_2=1, var_1_3=19999/2, var_1_4=1000000000006, var_1_5=1000000000004, var_1_6=1000000000005, var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 18, 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=38occurred 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, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:51:34,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ee9ab0ce6c16857f5101fdd21f4b28f23af496d642a804f890a8c51cd803df8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:36,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:36,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:51:36,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:36,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:36,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:36,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:36,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:36,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:36,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:36,996 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:36,996 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:36,997 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:36,999 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:37,000 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:37,001 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:37,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:37,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:51:37,003 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:51:37,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:51:37,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:37,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:51:37,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:37,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:51:37,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:51:37,008 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:51:37,009 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:51:37,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:51:37,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:51:37,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:37,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:37,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:51:37,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:37,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:37,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:37,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:37,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:51:37,015 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:51:37,015 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:51:37,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:51:37,017 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:37,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:37,018 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee9ab0ce6c16857f5101fdd21f4b28f23af496d642a804f890a8c51cd803df8 [2023-11-12 00:51:37,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:37,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:37,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:37,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:37,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:37,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:40,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:40,877 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:40,878 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:40,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/617f66e3f/75fd6ff9b3de46288e66aaee367b5c90/FLAGf2dd5be7c [2023-11-12 00:51:40,911 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/data/617f66e3f/75fd6ff9b3de46288e66aaee367b5c90 [2023-11-12 00:51:40,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:40,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:40,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:40,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:40,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:40,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:40" (1/1) ... [2023-11-12 00:51:40,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da0472b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:40, skipping insertion in model container [2023-11-12 00:51:40,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:40" (1/1) ... [2023-11-12 00:51:40,972 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:41,184 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i[913,926] [2023-11-12 00:51:41,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:41,281 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:41,300 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_2e487e53-2fad-45ed-8405-8c4c4f9ee986/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-81.i[913,926] [2023-11-12 00:51:41,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:41,377 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:41,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41 WrapperNode [2023-11-12 00:51:41,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:41,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:41,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:41,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:41,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,464 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-11-12 00:51:41,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:41,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:41,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:41,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:41,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:41,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:41,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:41,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:41,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (1/1) ... [2023-11-12 00:51:41,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:41,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:41,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:51:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:51:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:51:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:41,712 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:51:41,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:44,277 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:44,284 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:44,284 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:51:44,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:44 BoogieIcfgContainer [2023-11-12 00:51:44,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:44,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:44,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:44,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:44,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:40" (1/3) ... [2023-11-12 00:51:44,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738cce1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:44, skipping insertion in model container [2023-11-12 00:51:44,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:41" (2/3) ... [2023-11-12 00:51:44,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738cce1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:44, skipping insertion in model container [2023-11-12 00:51:44,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:44" (3/3) ... [2023-11-12 00:51:44,297 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-81.i [2023-11-12 00:51:44,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:44,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:51:44,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:44,391 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;@149efbc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:44,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:51:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:51:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 00:51:44,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:44,414 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:44,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:44,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash -15431121, now seen corresponding path program 1 times [2023-11-12 00:51:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:44,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302790923] [2023-11-12 00:51:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:44,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:44,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:44,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:44,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:51:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:44,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:51:44,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2023-11-12 00:51:44,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:44,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:44,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302790923] [2023-11-12 00:51:44,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302790923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:44,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:44,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:44,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948317349] [2023-11-12 00:51:44,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:44,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:51:44,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:45,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:51:45,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:45,027 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:51:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:45,058 INFO L93 Difference]: Finished difference Result 105 states and 176 transitions. [2023-11-12 00:51:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:51:45,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2023-11-12 00:51:45,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:45,068 INFO L225 Difference]: With dead ends: 105 [2023-11-12 00:51:45,069 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 00:51:45,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:45,077 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:45,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 00:51:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 00:51:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:51:45,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2023-11-12 00:51:45,127 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 116 [2023-11-12 00:51:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:45,128 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2023-11-12 00:51:45,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:51:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2023-11-12 00:51:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 00:51:45,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:45,133 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:45,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:45,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:45,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:45,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1317154585, now seen corresponding path program 1 times [2023-11-12 00:51:45,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:45,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240666369] [2023-11-12 00:51:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:45,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:45,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:45,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:45,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:51:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:45,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:51:45,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-12 00:51:47,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:47,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:47,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240666369] [2023-11-12 00:51:47,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240666369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:47,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:47,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42136658] [2023-11-12 00:51:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:47,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:47,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:47,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:47,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:47,346 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 00:51:49,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:51:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:50,303 INFO L93 Difference]: Finished difference Result 151 states and 220 transitions. [2023-11-12 00:51:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:50,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2023-11-12 00:51:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:50,328 INFO L225 Difference]: With dead ends: 151 [2023-11-12 00:51:50,328 INFO L226 Difference]: Without dead ends: 102 [2023-11-12 00:51:50,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:50,331 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 41 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:50,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 236 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 00:51:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-12 00:51:50,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 88. [2023-11-12 00:51:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 00:51:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 128 transitions. [2023-11-12 00:51:50,375 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 128 transitions. Word has length 116 [2023-11-12 00:51:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:50,376 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 128 transitions. [2023-11-12 00:51:50,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 00:51:50,377 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 128 transitions. [2023-11-12 00:51:50,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 00:51:50,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:50,380 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:50,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:50,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:50,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:50,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2144427370, now seen corresponding path program 1 times [2023-11-12 00:51:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:50,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103082574] [2023-11-12 00:51:50,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:50,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:50,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:50,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:50,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e487e53-2fad-45ed-8405-8c4c4f9ee986/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 00:51:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:50,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-12 00:51:50,993 INFO L285 TraceCheckSpWp]: Computing forward predicates...