./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum_array-2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum_array-2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh --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 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:13:56,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:13:56,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:13:56,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:13:56,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:13:56,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:13:56,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:13:56,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:13:56,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:13:56,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:13:56,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:13:56,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:13:56,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:13:56,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:13:56,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:13:56,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:13:56,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:13:56,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:13:56,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:13:56,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:13:56,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:13:56,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:13:56,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:13:56,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:13:56,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:13:56,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:13:56,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:13:56,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:13:56,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:13:56,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:13:56,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:13:56,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:13:56,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:13:56,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:13:56,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:13:56,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:13:56,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:13:56,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:13:56,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:13:56,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:13:56,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:13:56,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 12:13:56,925 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:13:56,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:13:56,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:13:56,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:13:56,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:13:56,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:13:56,926 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:13:56,926 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:13:56,927 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:13:56,927 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:13:56,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:13:56,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:13:56,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:13:56,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:13:56,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:13:56,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:13:56,930 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_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 [2022-12-14 12:13:57,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:13:57,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:13:57,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:13:57,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:13:57,123 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:13:57,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loops/sum_array-2-2.i [2022-12-14 12:13:59,614 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:13:59,791 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:13:59,791 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/sv-benchmarks/c/loops/sum_array-2-2.i [2022-12-14 12:13:59,796 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/data/61c501efe/9ac0a2162e4a4186a325a8a8f9dc9037/FLAG9ff96c89e [2022-12-14 12:14:00,202 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/data/61c501efe/9ac0a2162e4a4186a325a8a8f9dc9037 [2022-12-14 12:14:00,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:14:00,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:14:00,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:14:00,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:14:00,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:14:00,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c889f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00, skipping insertion in model container [2022-12-14 12:14:00,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:14:00,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:14:00,336 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_9f3fad4d-0a2b-4873-a719-a785cb721dd2/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2022-12-14 12:14:00,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:14:00,354 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:14:00,363 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_9f3fad4d-0a2b-4873-a719-a785cb721dd2/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2022-12-14 12:14:00,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:14:00,380 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:14:00,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00 WrapperNode [2022-12-14 12:14:00,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:14:00,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:14:00,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:14:00,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:14:00,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,407 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-14 12:14:00,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:14:00,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:14:00,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:14:00,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:14:00,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,425 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:14:00,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:14:00,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:14:00,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:14:00,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (1/1) ... [2022-12-14 12:14:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:14:00,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:14:00,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:14:00,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:14:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:14:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:14:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:14:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:14:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:14:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:14:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:14:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:14:00,547 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:14:00,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:14:00,726 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:14:00,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:14:00,766 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 12:14:00,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:14:00 BoogieIcfgContainer [2022-12-14 12:14:00,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:14:00,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:14:00,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:14:00,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:14:00,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:14:00" (1/3) ... [2022-12-14 12:14:00,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33510b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:14:00, skipping insertion in model container [2022-12-14 12:14:00,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:00" (2/3) ... [2022-12-14 12:14:00,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33510b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:14:00, skipping insertion in model container [2022-12-14 12:14:00,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:14:00" (3/3) ... [2022-12-14 12:14:00,776 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-2.i [2022-12-14 12:14:00,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:14:00,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 12:14:00,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:14:00,844 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;@696a32aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:14:00,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 12:14:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:14:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 12:14:00,852 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:00,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 12:14:00,853 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)] === [2022-12-14 12:14:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash -305365130, now seen corresponding path program 1 times [2022-12-14 12:14:00,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:00,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386215674] [2022-12-14 12:14:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:00,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:01,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:01,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386215674] [2022-12-14 12:14:01,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386215674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:01,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:01,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:14:01,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640681607] [2022-12-14 12:14:01,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:01,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:14:01,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:01,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:14:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:14:01,209 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 19 states have internal predecessors, (28), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-14 12:14:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:01,326 INFO L93 Difference]: Finished difference Result 58 states and 79 transitions. [2022-12-14 12:14:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:14:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2022-12-14 12:14:01,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:01,334 INFO L225 Difference]: With dead ends: 58 [2022-12-14 12:14:01,334 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 12:14:01,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:14:01,338 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:01,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 43 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:14:01,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 12:14:01,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2022-12-14 12:14:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:14:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 12:14:01,362 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 6 [2022-12-14 12:14:01,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:01,362 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 12:14:01,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-14 12:14:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 12:14:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 12:14:01,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:01,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:01,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:14:01,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:14:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1584251465, now seen corresponding path program 1 times [2022-12-14 12:14:01,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:01,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670802281] [2022-12-14 12:14:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:01,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:02,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:02,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670802281] [2022-12-14 12:14:02,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670802281] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:14:02,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236849677] [2022-12-14 12:14:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:02,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:14:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:14:02,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:14:02,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3fad4d-0a2b-4873-a719-a785cb721dd2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:14:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:02,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 12:14:02,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:14:02,581 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 10 treesize of output 8 [2022-12-14 12:14:02,638 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 17 treesize of output 13 [2022-12-14 12:14:02,749 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 59 treesize of output 57 [2022-12-14 12:14:02,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-12-14 12:14:02,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 17 [2022-12-14 12:14:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:02,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:14:03,637 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:14:03,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 115 treesize of output 117 [2022-12-14 12:14:03,896 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 8 treesize of output 6 [2022-12-14 12:14:03,901 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 32 treesize of output 30 [2022-12-14 12:14:03,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:03,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:03,918 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 12:14:03,932 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 158 treesize of output 154 [2022-12-14 12:14:03,992 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 25 treesize of output 23 [2022-12-14 12:14:04,008 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 158 treesize of output 154 [2022-12-14 12:14:04,045 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 182 treesize of output 176 [2022-12-14 12:14:04,069 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 32 treesize of output 30 [2022-12-14 12:14:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:04,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236849677] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:14:04,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337458428] [2022-12-14 12:14:04,132 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 12:14:04,132 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:14:04,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:14:04,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:14:04,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:14:04,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,237 INFO L321 Elim1Store]: treesize reduction 129, result has 17.8 percent of original size [2022-12-14 12:14:04,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 55 treesize of output 73 [2022-12-14 12:14:04,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2022-12-14 12:14:04,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2022-12-14 12:14:04,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2022-12-14 12:14:04,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:04,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,621 INFO L321 Elim1Store]: treesize reduction 176, result has 7.9 percent of original size [2022-12-14 12:14:04,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 467 treesize of output 409 [2022-12-14 12:14:04,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:04,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2022-12-14 12:14:04,939 INFO L321 Elim1Store]: treesize reduction 226, result has 36.9 percent of original size [2022-12-14 12:14:04,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 352 [2022-12-14 12:14:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:09,213 INFO L321 Elim1Store]: treesize reduction 1842, result has 52.5 percent of original size [2022-12-14 12:14:09,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 64 case distinctions, treesize of input 2025 treesize of output 3752