./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh --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 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:49:33,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:49:33,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:49:33,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:49:33,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:49:33,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:49:33,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:49:33,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:49:33,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:49:33,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:49:33,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:49:33,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:49:33,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:49:33,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:49:33,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:49:33,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:49:33,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:49:33,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:49:33,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:49:33,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:49:33,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:49:33,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:49:33,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:49:33,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:49:33,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:49:33,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:49:33,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:49:33,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:49:33,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:49:33,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:49:33,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:49:33,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:49:33,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:49:33,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:49:33,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:49:33,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:49:33,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:49:33,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:49:33,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:49:33,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:49:33,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:49:33,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:49:33,820 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:49:33,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:49:33,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:49:33,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:49:33,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:49:33,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:49:33,822 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:49:33,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:49:33,822 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:49:33,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:49:33,823 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:49:33,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:49:33,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:49:33,823 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:49:33,823 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:49:33,823 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:49:33,824 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:49:33,824 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:49:33,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:49:33,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:49:33,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:49:33,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:49:33,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:49:33,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:49:33,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:49:33,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:49:33,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:49:33,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:33,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:49:33,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:49:33,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:49:33,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2022-12-14 06:49:34,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:49:34,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:49:34,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:49:34,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:49:34,034 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:49:34,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-12-14 06:49:36,539 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:49:36,708 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:49:36,708 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-12-14 06:49:36,713 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/data/140a27498/36ecbed77fb643b682f77665ea630cfc/FLAGddc25e9ee [2022-12-14 06:49:37,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/data/140a27498/36ecbed77fb643b682f77665ea630cfc [2022-12-14 06:49:37,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:49:37,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:49:37,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:37,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:49:37,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:49:37,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7714a23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37, skipping insertion in model container [2022-12-14 06:49:37,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:49:37,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:49:37,233 WARN L237 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_1996a7af-353d-4c9e-851a-2bdb22167d77/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-12-14 06:49:37,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:37,255 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:49:37,264 WARN L237 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_1996a7af-353d-4c9e-851a-2bdb22167d77/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-12-14 06:49:37,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:37,282 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:49:37,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37 WrapperNode [2022-12-14 06:49:37,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:37,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:37,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:49:37,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:49:37,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,309 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 158 [2022-12-14 06:49:37,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:37,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:49:37,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:49:37,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:49:37,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:49:37,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:49:37,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:49:37,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:49:37,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (1/1) ... [2022-12-14 06:49:37,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:37,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:37,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:49:37,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:49:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:49:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:49:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:49:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:49:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:49:37,453 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:49:37,455 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:49:37,616 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:49:37,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:49:37,702 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-12-14 06:49:37,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:37 BoogieIcfgContainer [2022-12-14 06:49:37,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:49:37,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:49:37,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:49:37,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:49:37,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:49:37" (1/3) ... [2022-12-14 06:49:37,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a26cab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:37, skipping insertion in model container [2022-12-14 06:49:37,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:37" (2/3) ... [2022-12-14 06:49:37,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a26cab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:37, skipping insertion in model container [2022-12-14 06:49:37,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:37" (3/3) ... [2022-12-14 06:49:37,714 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2022-12-14 06:49:37,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:49:37,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:49:37,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:49:37,789 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=LoopsAndPotentialCycles, 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;@44928714, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:49:37,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:49:37,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:49:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:49:37,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:37,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:37,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:49:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash -949169288, now seen corresponding path program 1 times [2022-12-14 06:49:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:37,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176341590] [2022-12-14 06:49:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:37,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:37,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176341590] [2022-12-14 06:49:37,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176341590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:37,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:37,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:49:37,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647139856] [2022-12-14 06:49:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:37,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:49:37,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:38,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:49:38,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:49:38,019 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:38,124 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions. [2022-12-14 06:49:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:49:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:49:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:38,132 INFO L225 Difference]: With dead ends: 69 [2022-12-14 06:49:38,132 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 06:49:38,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:49:38,137 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:38,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 31 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:49:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 06:49:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 26. [2022-12-14 06:49:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:49:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 38 transitions. [2022-12-14 06:49:38,178 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 38 transitions. Word has length 8 [2022-12-14 06:49:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:38,179 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 38 transitions. [2022-12-14 06:49:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2022-12-14 06:49:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 06:49:38,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:38,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:38,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:49:38,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:49:38,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1419433359, now seen corresponding path program 1 times [2022-12-14 06:49:38,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:38,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550889311] [2022-12-14 06:49:38,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:38,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:38,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550889311] [2022-12-14 06:49:38,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550889311] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:38,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395812442] [2022-12-14 06:49:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:38,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:38,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:38,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:49:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:38,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:49:38,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:38,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:38,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395812442] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:38,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1024937637] [2022-12-14 06:49:38,350 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 06:49:38,350 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:38,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:38,358 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:38,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:38,426 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:49:38,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 06:49:38,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:38,455 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:49:38,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:49:38,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:38,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 06:49:38,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:38,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:38,590 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-12-14 06:49:38,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 192 treesize of output 191 [2022-12-14 06:49:38,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:38,738 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:38,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1024937637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:38,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:38,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 3] total 8 [2022-12-14 06:49:38,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232027086] [2022-12-14 06:49:38,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:38,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:49:38,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:38,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:49:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:49:38,793 INFO L87 Difference]: Start difference. First operand 26 states and 38 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:38,843 INFO L93 Difference]: Finished difference Result 51 states and 75 transitions. [2022-12-14 06:49:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:49:38,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 06:49:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:38,844 INFO L225 Difference]: With dead ends: 51 [2022-12-14 06:49:38,844 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 06:49:38,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:49:38,846 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:38,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:38,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 06:49:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-12-14 06:49:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:49:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2022-12-14 06:49:38,852 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 33 transitions. Word has length 9 [2022-12-14 06:49:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:38,852 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-12-14 06:49:38,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-12-14 06:49:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:49:38,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:38,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:38,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:49:39,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:39,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:49:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1743564460, now seen corresponding path program 1 times [2022-12-14 06:49:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:39,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922535441] [2022-12-14 06:49:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:39,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:39,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922535441] [2022-12-14 06:49:39,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922535441] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:39,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569655763] [2022-12-14 06:49:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:39,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:39,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:39,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:49:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:39,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:49:39,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:49:39,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:49:39,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569655763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:39,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:49:39,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-14 06:49:39,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161651102] [2022-12-14 06:49:39,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:39,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:49:39,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:39,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:49:39,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:39,196 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:39,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:39,232 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2022-12-14 06:49:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:49:39,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 06:49:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:39,233 INFO L225 Difference]: With dead ends: 51 [2022-12-14 06:49:39,234 INFO L226 Difference]: Without dead ends: 32 [2022-12-14 06:49:39,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:39,235 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:39,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-14 06:49:39,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2022-12-14 06:49:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:49:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2022-12-14 06:49:39,242 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 14 [2022-12-14 06:49:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:39,242 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2022-12-14 06:49:39,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-12-14 06:49:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 06:49:39,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:39,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:39,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:49:39,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:39,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:49:39,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:39,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1740263560, now seen corresponding path program 1 times [2022-12-14 06:49:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:39,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900485668] [2022-12-14 06:49:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:39,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:49:39,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900485668] [2022-12-14 06:49:39,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900485668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:39,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787628507] [2022-12-14 06:49:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:39,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:39,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:39,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:39,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:49:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:39,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:49:39,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:49:39,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:49:39,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787628507] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:39,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1172377997] [2022-12-14 06:49:39,584 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 06:49:39,584 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:39,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:39,584 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:39,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:39,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,610 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:49:39,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:49:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 06:49:39,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 06:49:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,700 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 06:49:39,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 190 [2022-12-14 06:49:39,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:39,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:49:39,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 06:49:39,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:39,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 118 [2022-12-14 06:49:39,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:39,880 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:40,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1172377997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:40,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:40,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [3, 3, 3] total 13 [2022-12-14 06:49:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025818619] [2022-12-14 06:49:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:40,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:49:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:40,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:49:40,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=97, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:49:40,122 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:40,199 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-12-14 06:49:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:49:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 06:49:40,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:40,200 INFO L225 Difference]: With dead ends: 51 [2022-12-14 06:49:40,200 INFO L226 Difference]: Without dead ends: 32 [2022-12-14 06:49:40,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=97, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:49:40,201 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:40,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 48 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:49:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-14 06:49:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-12-14 06:49:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:49:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2022-12-14 06:49:40,209 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 15 [2022-12-14 06:49:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:40,209 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2022-12-14 06:49:40,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-12-14 06:49:40,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:49:40,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:40,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:40,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:49:40,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:40,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:49:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:40,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1748272013, now seen corresponding path program 1 times [2022-12-14 06:49:40,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:40,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420216750] [2022-12-14 06:49:40,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:40,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:49:40,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420216750] [2022-12-14 06:49:40,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420216750] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:40,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573848121] [2022-12-14 06:49:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:40,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:40,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:40,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:49:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:40,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:49:40,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:49:40,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:49:40,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573848121] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:40,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2029586189] [2022-12-14 06:49:40,557 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 06:49:40,557 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:40,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:40,558 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:40,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:40,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:40,581 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:49:40,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:49:40,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:40,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 06:49:40,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:40,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 06:49:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:40,640 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 06:49:40,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 190 [2022-12-14 06:49:40,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:40,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:49:40,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 06:49:40,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:40,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 118 [2022-12-14 06:49:40,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 06:49:41,043 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:41,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2029586189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:41,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:41,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 12 [2022-12-14 06:49:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357375337] [2022-12-14 06:49:41,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:41,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:49:41,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:49:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=84, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:49:41,334 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:41,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:41,376 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-12-14 06:49:41,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:49:41,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 06:49:41,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:41,377 INFO L225 Difference]: With dead ends: 34 [2022-12-14 06:49:41,377 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:49:41,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=84, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:49:41,378 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:41,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:49:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:49:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:49:41,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-12-14 06:49:41,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:41,379 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:49:41,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:41,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:49:41,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:49:41,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:49:41,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:49:41,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:41,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:49:42,018 INFO L895 garLoopResultBuilder]: At program point elem_exists_returnLabel#1(lines 20 26) the Hoare annotation is: (and (<= |ULTIMATE.start_elem_exists_#in~size#1| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.base|) (<= 0 |ULTIMATE.start_elem_exists_~set#1.base|) (= |ULTIMATE.start_main_~#values~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#values~0#1.base|) (= 0 |ULTIMATE.start_elem_exists_#res#1|) (not (< |ULTIMATE.start_elem_exists_~i~0#1| |ULTIMATE.start_elem_exists_~size#1|)) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (<= 0 |ULTIMATE.start_elem_exists_~set#1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.offset|) (<= 0 |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_elem_exists_~size#1|) (<= 0 |ULTIMATE.start_elem_exists_#in~size#1|) (<= |ULTIMATE.start_elem_exists_#in~set#1.offset| 0) (= |#NULL.base| 0) (<= |ULTIMATE.start_elem_exists_~set#1.offset| 0)) [2022-12-14 06:49:42,018 INFO L895 garLoopResultBuilder]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 06:49:42,018 INFO L895 garLoopResultBuilder]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2022-12-14 06:49:42,018 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:49:42,019 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: false [2022-12-14 06:49:42,019 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2022-12-14 06:49:42,019 INFO L895 garLoopResultBuilder]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (<= |ULTIMATE.start_elem_exists_#in~size#1| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.base|) (<= 0 |ULTIMATE.start_elem_exists_~set#1.base|) (= |ULTIMATE.start_main_~#values~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#values~0#1.base|) (= 0 |ULTIMATE.start_elem_exists_#res#1|) (not (< |ULTIMATE.start_elem_exists_~i~0#1| |ULTIMATE.start_elem_exists_~size#1|)) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (<= 0 |ULTIMATE.start_elem_exists_~set#1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.offset|) (<= 0 |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_elem_exists_~size#1|) (<= 0 |ULTIMATE.start_elem_exists_#in~size#1|) (<= |ULTIMATE.start_elem_exists_#in~set#1.offset| 0) (= |#NULL.base| 0) (<= |ULTIMATE.start_elem_exists_~set#1.offset| 0)) [2022-12-14 06:49:42,019 INFO L895 garLoopResultBuilder]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (<= |ULTIMATE.start_elem_exists_#in~size#1| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.base|) (<= 0 |ULTIMATE.start_elem_exists_~set#1.base|) (= |ULTIMATE.start_main_~#values~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#values~0#1.base|) (<= |ULTIMATE.start_elem_exists_~size#1| 0) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (<= 0 |ULTIMATE.start_elem_exists_~set#1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.offset|) (<= 0 |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_elem_exists_~size#1|) (<= 0 |ULTIMATE.start_elem_exists_#in~size#1|) (<= |ULTIMATE.start_elem_exists_#in~set#1.offset| 0) (= |#NULL.base| 0) (<= |ULTIMATE.start_elem_exists_~set#1.offset| 0)) [2022-12-14 06:49:42,019 INFO L895 garLoopResultBuilder]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#values~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (<= 0 |ULTIMATE.start_main_~#values~0#1.base|) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 06:49:42,019 INFO L895 garLoopResultBuilder]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 06:49:42,020 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 06:49:42,020 INFO L895 garLoopResultBuilder]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2022-12-14 06:49:42,020 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2022-12-14 06:49:42,020 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: false [2022-12-14 06:49:42,020 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2022-12-14 06:49:42,020 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: false [2022-12-14 06:49:42,020 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-12-14 06:49:42,020 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:49:42,020 INFO L895 garLoopResultBuilder]: At program point L33-3(lines 33 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~#set~0#1.base|) (= |ULTIMATE.start_main_~#set~0#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 06:49:42,021 INFO L895 garLoopResultBuilder]: At program point L51-3(lines 51 60) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#values~0#1.offset| 0)) (.cse1 (<= 0 |ULTIMATE.start_main_~#set~0#1.base|)) (.cse2 (<= 0 |ULTIMATE.start_main_~#values~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#set~0#1.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~n~0#1| 0)) (.cse5 (= |#NULL.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~x~0#1| 0)) (.cse7 (<= 0 |#StackHeapBarrier|)) (.cse8 (= |#NULL.base| 0))) (or (and (<= |ULTIMATE.start_elem_exists_#in~size#1| 0) (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.base|) (<= 0 |ULTIMATE.start_elem_exists_~set#1.base|) .cse0 .cse1 (= |ULTIMATE.start_elem_exists_~i~0#1| 0) .cse2 (= 0 |ULTIMATE.start_elem_exists_#res#1|) (not (< |ULTIMATE.start_elem_exists_~i~0#1| |ULTIMATE.start_elem_exists_~size#1|)) .cse3 .cse4 (<= 0 |ULTIMATE.start_elem_exists_~set#1.offset|) .cse5 (<= 0 |ULTIMATE.start_elem_exists_#in~set#1.offset|) (<= 0 |ULTIMATE.start_main_~v~0#1|) .cse6 .cse7 (<= 0 |ULTIMATE.start_elem_exists_~size#1|) (<= 0 |ULTIMATE.start_elem_exists_#in~size#1|) (<= |ULTIMATE.start_elem_exists_#in~set#1.offset| 0) .cse8 (<= |ULTIMATE.start_elem_exists_~set#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~v~0#1| 0) .cse5 .cse6 .cse7 .cse8))) [2022-12-14 06:49:42,021 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-12-14 06:49:42,021 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-12-14 06:49:42,021 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-12-14 06:49:42,021 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed. [2022-12-14 06:49:42,021 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 13) the Hoare annotation is: true [2022-12-14 06:49:42,021 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-12-14 06:49:42,024 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 06:49:42,026 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:49:42,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:49:42 BoogieIcfgContainer [2022-12-14 06:49:42,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:49:42,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:49:42,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:49:42,046 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:49:42,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:37" (3/4) ... [2022-12-14 06:49:42,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:49:42,052 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 06:49:42,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-12-14 06:49:42,057 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 06:49:42,057 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:49:42,057 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:49:42,079 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0) || (((((((((values == 0 && 0 <= set) && 0 <= values) && set == 0) && n == 0) && v == 0) && #NULL == 0) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-12-14 06:49:42,080 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && size <= 0) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 [2022-12-14 06:49:42,080 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 [2022-12-14 06:49:42,080 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 [2022-12-14 06:49:42,089 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:49:42,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:49:42,090 INFO L158 Benchmark]: Toolchain (without parser) took 4972.73ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 120.7MB in the beginning and 66.3MB in the end (delta: 54.3MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,090 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:49:42,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.29ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 109.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.37ms. Allocated memory is still 157.3MB. Free memory was 109.9MB in the beginning and 107.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,091 INFO L158 Benchmark]: Boogie Preprocessor took 19.35ms. Allocated memory is still 157.3MB. Free memory was 107.8MB in the beginning and 106.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,091 INFO L158 Benchmark]: RCFGBuilder took 375.05ms. Allocated memory is still 157.3MB. Free memory was 106.0MB in the beginning and 85.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,092 INFO L158 Benchmark]: TraceAbstraction took 4337.34ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 84.7MB in the beginning and 70.5MB in the end (delta: 14.2MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,092 INFO L158 Benchmark]: Witness Printer took 43.69ms. Allocated memory is still 207.6MB. Free memory was 70.5MB in the beginning and 66.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:49:42,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.29ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 109.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.37ms. Allocated memory is still 157.3MB. Free memory was 109.9MB in the beginning and 107.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.35ms. Allocated memory is still 157.3MB. Free memory was 107.8MB in the beginning and 106.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.05ms. Allocated memory is still 157.3MB. Free memory was 106.0MB in the beginning and 85.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4337.34ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 84.7MB in the beginning and 70.5MB in the end (delta: 14.2MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Witness Printer took 43.69ms. Allocated memory is still 207.6MB. Free memory was 70.5MB in the beginning and 66.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 63 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, InterpolantAutomatonStates: 27, 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, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 26 PreInvPairs, 41 NumberOfFragments, 404 HoareAnnotationTreeSize, 26 FomulaSimplifications, 35 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 650 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 467 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 19/29 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: OVERALL_TIME: 1.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 22, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 47, TOOLS_POST_TIME: 1.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 47, TOOLS_QUANTIFIERELIM_TIME: 1.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 111, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 22, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 0.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 251, DAG_COMPRESSION_RETAINED_NODES: 87, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((0 <= set && set == 0) && n == 0) && #NULL == 0) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((values == 0 && 0 <= set) && 0 <= values) && set == 0) && n == 0) && #NULL == 0) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && 0 == \result) && !(i < size)) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0) || (((((((((values == 0 && 0 <= set) && 0 <= values) && set == 0) && n == 0) && v == 0) && #NULL == 0) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((((0 <= set && set == 0) && n == 0) && #NULL == 0) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((((((((((((((\old(size) <= 0 && 0 <= set) && 0 <= set) && values == 0) && 0 <= set) && i == 0) && 0 <= values) && size <= 0) && set == 0) && n == 0) && 0 <= set) && #NULL == 0) && 0 <= set) && 0 <= v) && x == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= size) && 0 <= \old(size)) && set <= 0) && #NULL == 0) && set <= 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((((0 <= x && 0 <= set) && set == 0) && n == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 06:49:42,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996a7af-353d-4c9e-851a-2bdb22167d77/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE