./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 --- 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-b5237d8 [2022-11-22 02:31:25,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:31:25,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:31:25,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:31:25,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:31:25,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:31:25,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:31:25,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:31:25,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:31:25,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:31:25,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:31:25,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:31:25,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:31:25,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:31:25,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:31:25,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:31:25,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:31:25,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:31:25,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:31:25,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:31:25,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:31:25,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:31:25,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:31:25,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:31:25,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:31:25,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:31:25,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:31:25,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:31:25,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:31:25,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:31:25,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:31:25,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:31:25,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:31:25,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:31:25,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:31:25,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:31:25,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:31:25,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:31:25,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:31:25,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:31:25,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:31:25,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:31:25,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:31:25,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:31:25,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:31:25,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:31:25,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:31:25,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:31:25,960 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:31:25,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:31:25,960 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:31:25,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:31:25,962 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:31:25,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:31:25,962 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:31:25,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:31:25,963 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:31:25,963 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:31:25,963 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:31:25,963 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:31:25,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:31:25,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:31:25,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:31:25,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:31:25,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:31:25,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:31:25,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:31:25,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:31:25,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:31:25,967 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:31:25,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:31:25,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:31:25,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:31:25,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:31:25,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:31:25,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:31:25,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:31:25,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:31:25,971 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:31:25,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:31:25,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:31:25,972 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:31:25,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:31:25,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:31:25,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:31:25,973 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_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 [2022-11-22 02:31:26,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:31:26,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:31:26,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:31:26,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:31:26,308 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:31:26,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2022-11-22 02:31:29,399 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:31:29,612 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:31:29,613 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2022-11-22 02:31:29,624 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/data/a46f2e666/ef90e36bd4da43e5a133c685c2fa4b56/FLAGad37808a7 [2022-11-22 02:31:29,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/data/a46f2e666/ef90e36bd4da43e5a133c685c2fa4b56 [2022-11-22 02:31:29,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:31:29,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:31:29,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:31:29,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:31:29,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:31:29,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:29,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d24519b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29, skipping insertion in model container [2022-11-22 02:31:29,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:29,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:31:29,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:31:29,866 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_723a6061-98b6-46a8-93be-cf1eb53dfa9e/sv-benchmarks/c/array-lopstr16/single_elem_safe.i[809,822] [2022-11-22 02:31:29,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:31:29,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:31:29,936 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_723a6061-98b6-46a8-93be-cf1eb53dfa9e/sv-benchmarks/c/array-lopstr16/single_elem_safe.i[809,822] [2022-11-22 02:31:29,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:31:29,981 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:31:29,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29 WrapperNode [2022-11-22 02:31:29,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:31:29,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:31:29,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:31:29,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:31:29,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,044 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-11-22 02:31:30,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:31:30,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:31:30,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:31:30,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:31:30,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:31:30,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:31:30,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:31:30,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:31:30,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (1/1) ... [2022-11-22 02:31:30,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:31:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:31:30,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:31:30,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:31:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:31:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:31:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:31:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:31:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:31:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:31:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:31:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:31:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:31:30,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:31:30,321 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:31:30,631 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:31:30,790 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:31:30,791 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:31:30,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:30 BoogieIcfgContainer [2022-11-22 02:31:30,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:31:30,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:31:30,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:31:30,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:31:30,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:31:29" (1/3) ... [2022-11-22 02:31:30,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:30, skipping insertion in model container [2022-11-22 02:31:30,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:29" (2/3) ... [2022-11-22 02:31:30,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:30, skipping insertion in model container [2022-11-22 02:31:30,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:30" (3/3) ... [2022-11-22 02:31:30,804 INFO L112 eAbstractionObserver]: Analyzing ICFG single_elem_safe.i [2022-11-22 02:31:30,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:31:30,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 02:31:30,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:31:30,900 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;@eac3c2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:31:30,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 02:31:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-22 02:31:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:31:30,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:30,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:31:30,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:30,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash 113771, now seen corresponding path program 1 times [2022-11-22 02:31:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:30,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413667344] [2022-11-22 02:31:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:31:31,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:31,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413667344] [2022-11-22 02:31:31,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413667344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:31,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:31,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:31:31,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620833395] [2022-11-22 02:31:31,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:31,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:31:31,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:31:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:31:31,356 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-22 02:31:31,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:31,550 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-22 02:31:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:31:31,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-22 02:31:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:31,561 INFO L225 Difference]: With dead ends: 28 [2022-11-22 02:31:31,562 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 02:31:31,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:31:31,568 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:31,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:31:31,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 02:31:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2022-11-22 02:31:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-11-22 02:31:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-22 02:31:31,604 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2022-11-22 02:31:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:31,604 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-22 02:31:31,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-22 02:31:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-22 02:31:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:31:31,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:31,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:31:31,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:31:31,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:31,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:31,607 INFO L85 PathProgramCache]: Analyzing trace with hash 3526966, now seen corresponding path program 1 times [2022-11-22 02:31:31,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:31,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183831071] [2022-11-22 02:31:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:31,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:31,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:31:31,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:31,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183831071] [2022-11-22 02:31:31,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183831071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:31,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:31,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:31:31,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215945887] [2022-11-22 02:31:31,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:31,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:31:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:31,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:31:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:31:31,708 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:31:31,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:31,791 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-22 02:31:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:31:31,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-11-22 02:31:31,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:31,793 INFO L225 Difference]: With dead ends: 18 [2022-11-22 02:31:31,793 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 02:31:31,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:31:31,794 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:31,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:31:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 02:31:31,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2022-11-22 02:31:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-22 02:31:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-22 02:31:31,799 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 4 [2022-11-22 02:31:31,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:31,799 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-22 02:31:31,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:31:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-22 02:31:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:31:31,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:31,800 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 02:31:31,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:31:31,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash -905548753, now seen corresponding path program 1 times [2022-11-22 02:31:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:31,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561653783] [2022-11-22 02:31:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:31,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:31:31,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:31,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561653783] [2022-11-22 02:31:31,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561653783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:31,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:31,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:31:31,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160409805] [2022-11-22 02:31:31,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:31,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:31,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:31,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:31,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:31,922 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:31:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:31,993 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-22 02:31:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:31,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-22 02:31:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:31,994 INFO L225 Difference]: With dead ends: 12 [2022-11-22 02:31:31,994 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:31:31,995 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 [2022-11-22 02:31:31,996 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:31,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:31:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:31:31,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-22 02:31:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-11-22 02:31:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-11-22 02:31:32,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2022-11-22 02:31:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:32,001 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-22 02:31:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:31:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-22 02:31:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:31:32,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:32,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:31:32,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:32,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1992758807, now seen corresponding path program 1 times [2022-11-22 02:31:32,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:32,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194149614] [2022-11-22 02:31:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:31:32,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:32,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194149614] [2022-11-22 02:31:32,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194149614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:32,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:32,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565523377] [2022-11-22 02:31:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:32,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:31:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:31:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:31:32,153 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-22 02:31:32,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:32,219 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-22 02:31:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:31:32,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2022-11-22 02:31:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:32,220 INFO L225 Difference]: With dead ends: 17 [2022-11-22 02:31:32,220 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 02:31:32,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:31:32,222 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:32,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:31:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 02:31:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-22 02:31:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-11-22 02:31:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-22 02:31:32,238 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2022-11-22 02:31:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:32,239 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-22 02:31:32,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-22 02:31:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-22 02:31:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:31:32,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:32,240 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:32,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:31:32,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1239756922, now seen corresponding path program 1 times [2022-11-22 02:31:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:32,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363686893] [2022-11-22 02:31:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:31:32,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:32,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363686893] [2022-11-22 02:31:32,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363686893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:32,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:32,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:31:32,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374999634] [2022-11-22 02:31:32,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:32,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:32,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:32,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:32,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:32,366 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-22 02:31:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:32,480 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-22 02:31:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-11-22 02:31:32,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:32,482 INFO L225 Difference]: With dead ends: 13 [2022-11-22 02:31:32,482 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 02:31:32,483 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 [2022-11-22 02:31:32,484 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:32,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:31:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 02:31:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-22 02:31:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-22 02:31:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-22 02:31:32,488 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2022-11-22 02:31:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:32,488 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-22 02:31:32,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-22 02:31:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-22 02:31:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:31:32,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:32,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:32,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:31:32,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:31:32,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash -222240979, now seen corresponding path program 1 times [2022-11-22 02:31:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:32,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238779832] [2022-11-22 02:31:32,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:32,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:31:32,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:32,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238779832] [2022-11-22 02:31:32,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238779832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:31:32,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138224328] [2022-11-22 02:31:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:32,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:31:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:31:32,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:31:32,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:31:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:32,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:31:32,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:31:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:31:32,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:31:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:31:32,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138224328] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:31:32,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092058420] [2022-11-22 02:31:32,936 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-22 02:31:32,936 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:31:32,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:31:32,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:31:32,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:31:33,014 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 7 treesize of output 6 [2022-11-22 02:31:33,022 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 7 treesize of output 6 [2022-11-22 02:31:33,684 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:33,700 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:33,931 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 02:31:33,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 02:31:34,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 13 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 35 [2022-11-22 02:31:34,537 INFO L321 Elim1Store]: treesize reduction 474, result has 11.2 percent of original size [2022-11-22 02:31:34,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 575 treesize of output 612 [2022-11-22 02:31:34,978 INFO L321 Elim1Store]: treesize reduction 158, result has 7.6 percent of original size [2022-11-22 02:31:34,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 705 treesize of output 768 [2022-11-22 02:31:35,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 585 treesize of output 577 [2022-11-22 02:31:35,143 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:35,157 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:35,184 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:35,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:31:35,367 INFO L321 Elim1Store]: treesize reduction 51, result has 17.7 percent of original size [2022-11-22 02:31:35,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 872 treesize of output 880 [2022-11-22 02:31:35,467 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-22 02:31:35,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 876 treesize of output 880 [2022-11-22 02:31:35,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2022-11-22 02:31:35,742 INFO L321 Elim1Store]: treesize reduction 51, result has 17.7 percent of original size [2022-11-22 02:31:35,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 912 treesize of output 920 [2022-11-22 02:31:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:35,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2022-11-22 02:31:35,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:35,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-22 02:31:36,292 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 19 treesize of output 1 [2022-11-22 02:31:36,315 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 31 treesize of output 27 [2022-11-22 02:31:36,345 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 [2022-11-22 02:31:36,363 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 19 treesize of output 1 [2022-11-22 02:31:36,382 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 [2022-11-22 02:31:36,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:36,405 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:36,428 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 11 treesize of output 7 [2022-11-22 02:31:36,447 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 11 treesize of output 7 [2022-11-22 02:31:36,534 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:31:36,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 162 treesize of output 157 [2022-11-22 02:31:36,746 INFO L321 Elim1Store]: treesize reduction 152, result has 41.5 percent of original size [2022-11-22 02:31:36,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 347 treesize of output 435 [2022-11-22 02:31:36,797 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 02:31:36,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 170 [2022-11-22 02:31:36,903 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:31:36,904 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 1 case distinctions, treesize of input 68 treesize of output 70 [2022-11-22 02:31:36,936 INFO L321 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2022-11-22 02:31:36,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 73 [2022-11-22 02:31:36,989 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:31:36,989 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 1 case distinctions, treesize of input 64 treesize of output 66 [2022-11-22 02:31:37,024 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:31:37,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 69 [2022-11-22 02:31:37,217 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:37,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:37,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2022-11-22 02:31:37,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:31:37,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:31:37,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:31:37,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:31:37,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2022-11-22 02:31:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:37,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2022-11-22 02:31:38,826 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 31 treesize of output 27 [2022-11-22 02:31:38,849 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 [2022-11-22 02:31:38,873 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 [2022-11-22 02:31:38,889 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 19 treesize of output 1 [2022-11-22 02:31:38,907 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 19 treesize of output 1 [2022-11-22 02:31:38,922 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:38,925 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:38,938 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 11 treesize of output 7 [2022-11-22 02:31:38,952 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 11 treesize of output 7 [2022-11-22 02:31:39,033 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:31:39,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 162 treesize of output 157 [2022-11-22 02:31:39,225 INFO L321 Elim1Store]: treesize reduction 152, result has 41.5 percent of original size [2022-11-22 02:31:39,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 347 treesize of output 435 [2022-11-22 02:31:39,269 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 02:31:39,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 170 [2022-11-22 02:31:39,341 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:31:39,342 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 1 case distinctions, treesize of input 64 treesize of output 66 [2022-11-22 02:31:39,374 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:31:39,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 69 [2022-11-22 02:31:39,432 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:31:39,432 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 1 case distinctions, treesize of input 68 treesize of output 70 [2022-11-22 02:31:39,465 INFO L321 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2022-11-22 02:31:39,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 73 [2022-11-22 02:31:39,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:39,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 122 [2022-11-22 02:31:39,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:31:39,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:31:39,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:31:39,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:31:39,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:31:39,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 336 [2022-11-22 02:31:39,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:39,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 189 [2022-11-22 02:31:39,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:39,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-22 02:31:40,287 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 [2022-11-22 02:31:40,302 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 31 treesize of output 27 [2022-11-22 02:31:40,316 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 [2022-11-22 02:31:40,330 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 19 treesize of output 1 [2022-11-22 02:31:40,343 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 19 treesize of output 1 [2022-11-22 02:31:40,366 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 11 treesize of output 7 [2022-11-22 02:31:40,380 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 11 treesize of output 7 [2022-11-22 02:31:40,394 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:40,396 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:31:40,433 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 02:31:40,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 117 [2022-11-22 02:31:40,488 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:31:40,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 113 [2022-11-22 02:31:40,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:40,613 INFO L321 Elim1Store]: treesize reduction 92, result has 41.8 percent of original size [2022-11-22 02:31:40,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 243 [2022-11-22 02:31:40,654 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:31:40,654 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 1 case distinctions, treesize of input 64 treesize of output 66 [2022-11-22 02:31:40,685 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:31:40,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 69 [2022-11-22 02:31:40,760 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-22 02:31:40,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 47 [2022-11-22 02:31:40,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:31:40,796 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:31:40,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 48 [2022-11-22 02:31:41,000 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 19 treesize of output 1 [2022-11-22 02:31:41,006 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 13 treesize of output 9 [2022-11-22 02:31:41,014 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 13 treesize of output 9 [2022-11-22 02:31:41,020 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 12 treesize of output 11 [2022-11-22 02:31:41,026 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 24 treesize of output 15 [2022-11-22 02:31:41,242 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:31:42,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1092058420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:42,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:31:42,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 13 [2022-11-22 02:31:42,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210175972] [2022-11-22 02:31:42,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:42,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:31:42,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:42,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:31:42,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=135, Unknown=2, NotChecked=0, Total=182 [2022-11-22 02:31:42,622 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-22 02:31:42,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:42,706 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-22 02:31:42,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:31:42,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) Word has length 11 [2022-11-22 02:31:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:42,707 INFO L225 Difference]: With dead ends: 12 [2022-11-22 02:31:42,707 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:31:42,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=135, Unknown=2, NotChecked=0, Total=182 [2022-11-22 02:31:42,709 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:42,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:31:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:31:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:31:42,710 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) [2022-11-22 02:31:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:31:42,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-22 02:31:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:42,710 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:31:42,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-22 02:31:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:31:42,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:31:42,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 02:31:42,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 02:31:42,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 02:31:42,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 02:31:42,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:31:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:31:42,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:31:43,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point L48-4(line 48) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L895 garLoopResultBuilder]: At program point L48-5(lines 48 55) the Hoare annotation is: (and (<= 0 |#NULL.base|) (<= 3 |~#a~0.base|) (<= |~#a~0.offset| 0) (<= 0 |~#a~0.offset|) (<= |#NULL.offset| 0) (<= |~#a~0.base| 3) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 02:31:43,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:31:43,023 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-22 02:31:43,023 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-22 02:31:43,023 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 46) the Hoare annotation is: (and (<= 0 |#NULL.base|) (<= 3 |~#a~0.base|) (<= |~#a~0.offset| 0) (<= 0 |~#a~0.offset|) (<= |#NULL.offset| 0) (<= |~#a~0.base| 3) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) [2022-11-22 02:31:43,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-22 02:31:43,026 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 02:31:43,028 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:31:43,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:31:43 BoogieIcfgContainer [2022-11-22 02:31:43,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:31:43,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:31:43,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:31:43,049 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:31:43,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:30" (3/4) ... [2022-11-22 02:31:43,053 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:31:43,064 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-22 02:31:43,065 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-22 02:31:43,065 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:31:43,065 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:31:43,098 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:31:43,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:31:43,099 INFO L158 Benchmark]: Toolchain (without parser) took 13448.75ms. Allocated memory was 153.1MB in the beginning and 299.9MB in the end (delta: 146.8MB). Free memory was 110.3MB in the beginning and 225.4MB in the end (delta: -115.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,100 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:31:43,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.55ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 99.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.50ms. Allocated memory is still 153.1MB. Free memory was 99.5MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,101 INFO L158 Benchmark]: Boogie Preprocessor took 53.35ms. Allocated memory is still 153.1MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,101 INFO L158 Benchmark]: RCFGBuilder took 694.20ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 74.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,101 INFO L158 Benchmark]: TraceAbstraction took 12252.44ms. Allocated memory was 153.1MB in the beginning and 299.9MB in the end (delta: 146.8MB). Free memory was 74.3MB in the beginning and 228.6MB in the end (delta: -154.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:31:43,102 INFO L158 Benchmark]: Witness Printer took 49.88ms. Allocated memory is still 299.9MB. Free memory was 228.6MB in the beginning and 225.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:31:43,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.55ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 99.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.50ms. Allocated memory is still 153.1MB. Free memory was 99.5MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.35ms. Allocated memory is still 153.1MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.20ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 74.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12252.44ms. Allocated memory was 153.1MB in the beginning and 299.9MB in the end (delta: 146.8MB). Free memory was 74.3MB in the beginning and 228.6MB in the end (delta: -154.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.88ms. Allocated memory is still 299.9MB. Free memory was 228.6MB in the beginning and 225.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 12.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 19 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=1, InterpolantAutomatonStates: 24, 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, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 62 HoareAnnotationTreeSize, 2 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 1 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 15/18 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: 8.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 8.1s, 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: 22, TOOLS_QUANTIFIERELIM_TIME: 8.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 2.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 43, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 7.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 7.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, 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: 55, DAG_COMPRESSION_RETAINED_NODES: 29, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((((0 <= #NULL && 3 <= a) && a <= 0) && 0 <= a) && #NULL <= 0) && a <= 3) && 0 <= i) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((((0 <= #NULL && 3 <= a) && a <= 0) && 0 <= a) && #NULL <= 0) && a <= 3) && 0 <= i) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown RESULT: Ultimate proved your program to be correct! [2022-11-22 02:31:43,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723a6061-98b6-46a8-93be-cf1eb53dfa9e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE