./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --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 e365d1f7c546788b4f6c8f402c5031aacc4ea6e6 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:04,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:04,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:04,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:04,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:04,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:04,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:04,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:04,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:04,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:04,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:04,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:04,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:04,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:04,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:04,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:04,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:04,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:04,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:04,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:04,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:04,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:04,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:04,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:04,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:04,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:04,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:04,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:04,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:04,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:04,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:04,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:04,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:04,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:04,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:04,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:04,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:04,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:04,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:04,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:04,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:04,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:30:04,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:04,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:04,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:04,922 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:04,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:04,922 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:04,922 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:30:04,923 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:04,923 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:04,923 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:30:04,924 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:30:04,925 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:04,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:30:04,925 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:30:04,926 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:30:04,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:04,927 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:04,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:30:04,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:04,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:04,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:04,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:04,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:04,929 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:04,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:04,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:04,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:04,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:04,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:04,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:04,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:04,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:04,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:04,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:04,933 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:30:04,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:30:04,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:04,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:04,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:04,935 INFO L138 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_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e365d1f7c546788b4f6c8f402c5031aacc4ea6e6 [2021-10-11 02:30:05,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:05,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:05,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:05,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:05,311 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:05,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2021-10-11 02:30:05,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/data/fb147362a/1bb3d3dab8ca4abfa246aef2913f603f/FLAGce8e0e7af [2021-10-11 02:30:05,921 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:05,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2021-10-11 02:30:05,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/data/fb147362a/1bb3d3dab8ca4abfa246aef2913f603f/FLAGce8e0e7af [2021-10-11 02:30:06,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/data/fb147362a/1bb3d3dab8ca4abfa246aef2913f603f [2021-10-11 02:30:06,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:06,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:06,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:06,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:06,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:06,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f82aae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06, skipping insertion in model container [2021-10-11 02:30:06,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:06,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:06,538 WARN L226 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_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-10-11 02:30:06,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:06,561 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:06,572 WARN L226 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_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-10-11 02:30:06,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:06,591 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:06,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06 WrapperNode [2021-10-11 02:30:06,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:06,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:06,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:06,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:06,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:06,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:06,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:06,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:06,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... [2021-10-11 02:30:06,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:06,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:06,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:06,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:06,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:30:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:30:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:30:07,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:07,093 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:30:07,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:07 BoogieIcfgContainer [2021-10-11 02:30:07,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:07,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:07,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:07,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:07,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:06" (1/3) ... [2021-10-11 02:30:07,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7e277f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:07, skipping insertion in model container [2021-10-11 02:30:07,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:06" (2/3) ... [2021-10-11 02:30:07,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7e277f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:07, skipping insertion in model container [2021-10-11 02:30:07,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:07" (3/3) ... [2021-10-11 02:30:07,104 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2021-10-11 02:30:07,118 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:07,122 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:30:07,134 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:30:07,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:07,190 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:07,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:07,191 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:07,191 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:07,191 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:07,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:07,191 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2021-10-11 02:30:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:30:07,208 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:07,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:30:07,209 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:07,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1916652, now seen corresponding path program 1 times [2021-10-11 02:30:07,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:07,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357274664] [2021-10-11 02:30:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:07,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357274664] [2021-10-11 02:30:07,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:07,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:07,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976120503] [2021-10-11 02:30:07,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:30:07,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:07,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:30:07,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:30:07,589 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2021-10-11 02:30:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:07,659 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-10-11 02:30:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:30:07,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:30:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:07,670 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:30:07,670 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:30:07,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:30:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:30:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-11 02:30:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:30:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-11 02:30:07,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-11 02:30:07,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:07,706 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-11 02:30:07,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:30:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-11 02:30:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:30:07,707 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:07,707 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-11 02:30:07,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:30:07,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:07,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:07,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1269628337, now seen corresponding path program 1 times [2021-10-11 02:30:07,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:07,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572590418] [2021-10-11 02:30:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:07,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572590418] [2021-10-11 02:30:07,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28766940] [2021-10-11 02:30:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:07,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-11 02:30:07,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:08,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:30:08,107 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:30:08,122 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:30:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:08,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1348074202] [2021-10-11 02:30:08,159 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:30:08,159 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:30:08,167 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:30:08,172 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:30:08,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:30:08,509 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:30:08,522 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:30:09,235 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:30:09,521 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-10-11 02:30:10,557 WARN L197 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 113 [2021-10-11 02:30:12,066 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 148 DAG size of output: 121 [2021-10-11 02:30:12,353 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-10-11 02:30:12,356 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:30:12,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:30:12,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-10-11 02:30:12,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757142565] [2021-10-11 02:30:12,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:30:12,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:12,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:30:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:30:12,359 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2021-10-11 02:30:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:12,448 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-10-11 02:30:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:30:12,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2021-10-11 02:30:12,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:12,450 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:30:12,450 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:30:12,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:30:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:30:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-11 02:30:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:30:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-11 02:30:12,468 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2021-10-11 02:30:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:12,468 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-11 02:30:12,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:30:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-11 02:30:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:30:12,469 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:12,469 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-10-11 02:30:12,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:30:12,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2021002444, now seen corresponding path program 2 times [2021-10-11 02:30:12,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:12,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406258972] [2021-10-11 02:30:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:12,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:12,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:12,726 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:30:12,726 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:30:12,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-11 02:30:12,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:30:12 BoogieIcfgContainer [2021-10-11 02:30:12,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:30:12,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:30:12,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:30:12,757 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:30:12,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:07" (3/4) ... [2021-10-11 02:30:12,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:30:12,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7075844-7fb9-445d-aba6-b4ac9c4ff4e0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:30:12,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:30:12,823 INFO L168 Benchmark]: Toolchain (without parser) took 6540.81 ms. Allocated memory was 121.6 MB in the beginning and 186.6 MB in the end (delta: 65.0 MB). Free memory was 86.7 MB in the beginning and 124.7 MB in the end (delta: -38.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,824 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:12,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.43 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 97.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 95.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:12,825 INFO L168 Benchmark]: Boogie Preprocessor took 37.62 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 94.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,825 INFO L168 Benchmark]: RCFGBuilder took 423.84 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 76.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,826 INFO L168 Benchmark]: TraceAbstraction took 5659.03 ms. Allocated memory was 121.6 MB in the beginning and 186.6 MB in the end (delta: 65.0 MB). Free memory was 76.1 MB in the beginning and 126.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,826 INFO L168 Benchmark]: Witness Printer took 64.98 ms. Allocated memory is still 186.6 MB. Free memory was 126.9 MB in the beginning and 124.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:12,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.43 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 97.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 95.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.62 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 94.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 423.84 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 76.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5659.03 ms. Allocated memory was 121.6 MB in the beginning and 186.6 MB in the end (delta: 65.0 MB). Free memory was 76.1 MB in the beginning and 126.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 64.98 ms. Allocated memory is still 186.6 MB. Free memory was 126.9 MB in the beginning and 124.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] Char *tmp; [L40] Char pathbuf[1 +1]; [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L27] Char *p; [L29] p = pathbuf VAL [tmp={5:4}] [L29] COND TRUE p <= pathlim [L15] COND FALSE !(!(cond)) VAL [tmp={5:4}] [L32] *p = 1 [L29] p++ VAL [tmp={5:4}] [L29] COND TRUE p <= pathlim [L15] COND FALSE !(!(cond)) VAL [tmp={5:4}] [L32] *p = 1 [L29] p++ VAL [tmp={5:4}] [L29] COND TRUE p <= pathlim [L15] COND TRUE !(cond) VAL [tmp={5:4}] [L16] reach_error() VAL [tmp={5:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 25 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 753 SizeOfPredicates, 11 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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 proved your program to be incorrect! Received shutdown request...