./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.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_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/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_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/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_063c4506-1759-4be2-89a3-332dbb780df9/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 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 --- 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 05:12:52,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:12:52,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:12:52,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:12:52,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:12:52,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:12:52,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:12:52,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:12:52,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:12:52,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:12:52,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:12:52,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:12:52,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:12:52,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:12:52,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:12:52,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:12:52,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:12:52,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:12:52,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:12:52,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:12:52,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:12:52,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:12:52,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:12:52,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:12:52,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:12:52,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:12:52,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:12:52,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:12:52,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:12:52,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:12:52,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:12:52,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:12:52,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:12:52,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:12:52,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:12:52,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:12:52,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:12:52,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:12:52,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:12:52,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:12:52,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:12:52,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 05:12:52,268 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:12:52,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:12:52,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:12:52,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:12:52,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:12:52,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:12:52,275 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:12:52,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:12:52,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:12:52,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:12:52,276 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:12:52,276 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:12:52,277 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:12:52,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:12:52,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:12:52,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:12:52,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:12:52,278 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:12:52,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:12:52,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:12:52,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:12:52,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:12:52,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:12:52,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:52,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:12:52,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:12:52,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:12:52,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:12:52,281 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_063c4506-1759-4be2-89a3-332dbb780df9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2022-12-14 05:12:52,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:12:52,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:12:52,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:12:52,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:12:52,487 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:12:52,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2022-12-14 05:12:55,069 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:12:55,222 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:12:55,223 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/sv-benchmarks/c/loop-acceleration/array_3-1.i [2022-12-14 05:12:55,227 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/data/3c0839ad3/2758a3c4df994083ba3fc931202b5f39/FLAG731083e7d [2022-12-14 05:12:55,648 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/data/3c0839ad3/2758a3c4df994083ba3fc931202b5f39 [2022-12-14 05:12:55,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:12:55,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:12:55,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:55,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:12:55,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:12:55,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da8541a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55, skipping insertion in model container [2022-12-14 05:12:55,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:12:55,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:12:55,767 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_063c4506-1759-4be2-89a3-332dbb780df9/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2022-12-14 05:12:55,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:55,781 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:12:55,789 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_063c4506-1759-4be2-89a3-332dbb780df9/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2022-12-14 05:12:55,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:55,801 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:12:55,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55 WrapperNode [2022-12-14 05:12:55,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:55,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:55,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:12:55,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:12:55,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,824 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-14 05:12:55,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:55,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:12:55,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:12:55,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:12:55,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:12:55,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:12:55,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:12:55,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:12:55,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (1/1) ... [2022-12-14 05:12:55,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:55,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:12:55,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:12:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:12:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:12:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:12:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:12:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:12:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:12:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:12:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:12:55,957 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:12:55,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:12:56,040 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:12:56,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:12:56,067 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:12:56,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:56 BoogieIcfgContainer [2022-12-14 05:12:56,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:12:56,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:12:56,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:12:56,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:12:56,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:12:55" (1/3) ... [2022-12-14 05:12:56,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ded1c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:56, skipping insertion in model container [2022-12-14 05:12:56,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:55" (2/3) ... [2022-12-14 05:12:56,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ded1c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:56, skipping insertion in model container [2022-12-14 05:12:56,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:56" (3/3) ... [2022-12-14 05:12:56,077 INFO L112 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2022-12-14 05:12:56,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:12:56,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 05:12:56,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:12:56,148 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;@3d11dc41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:12:56,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 05:12:56,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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 05:12:56,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:12:56,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:56,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:12:56,156 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 05:12:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash 90254, now seen corresponding path program 1 times [2022-12-14 05:12:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:56,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278268960] [2022-12-14 05:12:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:56,351 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 05:12:56,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:56,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278268960] [2022-12-14 05:12:56,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278268960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:56,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:56,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:56,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672062375] [2022-12-14 05:12:56,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:56,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:56,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:56,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:56,385 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-12-14 05:12:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:56,451 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2022-12-14 05:12:56,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:12:56,453 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 [2022-12-14 05:12:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:56,461 INFO L225 Difference]: With dead ends: 38 [2022-12-14 05:12:56,461 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 05:12:56,464 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 [2022-12-14 05:12:56,467 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:56,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 24 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:56,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 05:12:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2022-12-14 05:12:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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 05:12:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-14 05:12:56,491 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 3 [2022-12-14 05:12:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:56,492 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-14 05:12:56,492 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) [2022-12-14 05:12:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-14 05:12:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 05:12:56,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:56,492 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 05:12:56,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:12:56,493 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 05:12:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:56,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1606163373, now seen corresponding path program 1 times [2022-12-14 05:12:56,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:56,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820555781] [2022-12-14 05:12:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:56,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:56,585 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 05:12:56,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:56,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820555781] [2022-12-14 05:12:56,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820555781] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:12:56,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128877233] [2022-12-14 05:12:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:56,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:12:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:56,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:12:56,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:12:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:56,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:12:56,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:56,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:56,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128877233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:56,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:12:56,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 05:12:56,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245026363] [2022-12-14 05:12:56,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:56,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:12:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:56,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:12:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:12:56,697 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 6 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 05:12:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:56,738 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-12-14 05:12:56,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:12:56,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 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 05:12:56,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:56,740 INFO L225 Difference]: With dead ends: 23 [2022-12-14 05:12:56,740 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 05:12:56,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:12:56,742 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:56,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 05:12:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-12-14 05:12:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 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 05:12:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-14 05:12:56,747 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2022-12-14 05:12:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:56,747 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-14 05:12:56,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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 05:12:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 05:12:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:12:56,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:56,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-12-14 05:12:56,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:12:56,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:12:56,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 05:12:56,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:56,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1748543035, now seen corresponding path program 1 times [2022-12-14 05:12:56,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:56,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70702468] [2022-12-14 05:12:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 05:12:57,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70702468] [2022-12-14 05:12:57,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70702468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:57,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:57,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:57,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884316911] [2022-12-14 05:12:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:57,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:12:57,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:57,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:12:57,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:57,060 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 05:12:57,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:57,069 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-12-14 05:12:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:12:57,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-12-14 05:12:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:57,070 INFO L225 Difference]: With dead ends: 15 [2022-12-14 05:12:57,070 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 05:12:57,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:57,071 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:57,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 05:12:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 05:12:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) 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) [2022-12-14 05:12:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 05:12:57,074 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7 [2022-12-14 05:12:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:57,074 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 05:12:57,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 05:12:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 05:12:57,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:12:57,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:57,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:57,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:12:57,075 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)] === [2022-12-14 05:12:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1023498286, now seen corresponding path program 1 times [2022-12-14 05:12:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:57,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583034921] [2022-12-14 05:12:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:57,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:57,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583034921] [2022-12-14 05:12:57,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583034921] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:12:57,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806003844] [2022-12-14 05:12:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:12:57,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:57,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:12:57,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:12:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:57,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:12:57,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:57,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:57,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:12:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:57,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806003844] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:12:57,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [102547015] [2022-12-14 05:12:57,214 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 05:12:57,214 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:12:57,217 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:12:57,222 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:12:57,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:12:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,303 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:12:57,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 05:12:57,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,328 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:12:57,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 05:12:57,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:12:57,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 05:12:57,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:12:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:57,534 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 05:12:57,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 237 treesize of output 206 [2022-12-14 05:12:57,619 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 15 treesize of output 11 [2022-12-14 05:12:57,669 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 15 treesize of output 11 [2022-12-14 05:12:57,679 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:12:58,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [102547015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:58,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:12:58,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2022-12-14 05:12:58,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551877010] [2022-12-14 05:12:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:58,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:12:58,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:58,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:12:58,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2022-12-14 05:12:58,094 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-12-14 05:12:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:58,296 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-12-14 05:12:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:12:58,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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 9 [2022-12-14 05:12:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:58,297 INFO L225 Difference]: With dead ends: 28 [2022-12-14 05:12:58,297 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 05:12:58,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-12-14 05:12:58,298 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:58,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 22 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 05:12:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 17. [2022-12-14 05:12:58,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 05:12:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-12-14 05:12:58,304 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2022-12-14 05:12:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:58,304 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-12-14 05:12:58,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-12-14 05:12:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-14 05:12:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:12:58,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:58,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:58,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:12:58,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:12:58,506 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)] === [2022-12-14 05:12:58,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash 948467335, now seen corresponding path program 1 times [2022-12-14 05:12:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:58,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976601442] [2022-12-14 05:12:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:12:58,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:58,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976601442] [2022-12-14 05:12:58,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976601442] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:12:58,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947879249] [2022-12-14 05:12:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:58,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:12:58,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:58,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:12:58,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:12:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:58,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:12:58,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:12:58,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:12:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:12:58,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947879249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:12:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [893422162] [2022-12-14 05:12:58,737 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:12:58,737 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:12:58,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:12:58,738 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:12:58,738 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:12:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,759 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:12:58,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 05:12:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,778 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:12:58,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 05:12:58,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:12:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 05:12:58,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:12:58,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:12:58,906 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-12-14 05:12:58,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 221 treesize of output 209 [2022-12-14 05:12:58,982 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 15 treesize of output 11 [2022-12-14 05:12:59,079 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 15 treesize of output 11 [2022-12-14 05:12:59,087 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:12:59,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [893422162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:59,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:12:59,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-12-14 05:12:59,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242516786] [2022-12-14 05:12:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:59,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:12:59,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:12:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-12-14 05:12:59,624 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) 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) [2022-12-14 05:13:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:00,118 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-12-14 05:13:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 05:13:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) 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) Word has length 14 [2022-12-14 05:13:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:00,119 INFO L225 Difference]: With dead ends: 17 [2022-12-14 05:13:00,119 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 05:13:00,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-12-14 05:13:00,120 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:00,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 05:13:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 05:13:00,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:13:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 05:13:00,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 05:13:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:00,122 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 05:13:00,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) 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) [2022-12-14 05:13:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 05:13:00,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 05:13:00,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 05:13:00,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 05:13:00,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 05:13:00,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 05:13:00,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:13:00,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:13:00,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 05:13:00,528 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 05:13:00,528 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 05:13:00,528 INFO L899 garLoopResultBuilder]: For program point L28-1(lines 28 32) no Hoare annotation was computed. [2022-12-14 05:13:00,528 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-12-14 05:13:00,528 INFO L899 garLoopResultBuilder]: For program point L28-5(line 28) no Hoare annotation was computed. [2022-12-14 05:13:00,529 INFO L895 garLoopResultBuilder]: At program point L28-6(lines 28 32) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|)) (.cse4 (<= 0 |#NULL.offset|)) (.cse5 (<= 0 |#StackHeapBarrier|))) (or (and (<= 0 |#NULL.base|) .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 .cse2 .cse3 (<= |#NULL.base| 0) .cse4 .cse5) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse2 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse3 .cse4 .cse5 (= |#NULL.base| 0)))) [2022-12-14 05:13:00,529 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-12-14 05:13:00,529 INFO L902 garLoopResultBuilder]: At program point L28-7(lines 28 32) the Hoare annotation is: true [2022-12-14 05:13:00,529 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-12-14 05:13:00,530 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 26) the Hoare annotation is: (let ((.cse2 (<= 1 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse0 (let ((.cse3 (<= 0 |#NULL.base|)) (.cse4 (<= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|)) (.cse7 (<= |#NULL.base| 0)) (.cse8 (<= 0 |#NULL.offset|))) (or (and .cse3 .cse4 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) .cse5 .cse6 .cse7 .cse8 (<= 0 |#StackHeapBarrier|)) (and .cse3 .cse4 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse5 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse6 .cse7 .cse8))))) (or (let ((.cse1 (select |#memory_int| 1))) (and (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) .cse0 (= 2 (select |#length| 1)) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 12 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) 4096) (< 0 |#StackHeapBarrier|))) (and .cse2 .cse0)))) [2022-12-14 05:13:00,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 05:13:00,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 05:13:00,530 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2022-12-14 05:13:00,530 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 05:13:00,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 05:13:00,533 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 05:13:00,535 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:13:00,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:13:00 BoogieIcfgContainer [2022-12-14 05:13:00,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:13:00,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:13:00,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:13:00,553 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:13:00,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:56" (3/4) ... [2022-12-14 05:13:00,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 05:13:00,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 05:13:00,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 05:13:00,562 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 05:13:00,562 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 05:13:00,583 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:13:00,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:13:00,583 INFO L158 Benchmark]: Toolchain (without parser) took 4932.68ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 91.8MB in the beginning and 83.4MB in the end (delta: 8.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,583 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:13:00,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.60ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 81.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.03ms. Allocated memory is still 125.8MB. Free memory was 81.4MB in the beginning and 79.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:13:00,584 INFO L158 Benchmark]: Boogie Preprocessor took 14.45ms. Allocated memory is still 125.8MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 938.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,584 INFO L158 Benchmark]: RCFGBuilder took 228.79ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 67.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,584 INFO L158 Benchmark]: TraceAbstraction took 4481.96ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 85.4MB in the end (delta: -18.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,585 INFO L158 Benchmark]: Witness Printer took 29.64ms. Allocated memory is still 155.2MB. Free memory was 85.4MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:13:00,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.60ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 81.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.03ms. Allocated memory is still 125.8MB. Free memory was 81.4MB in the beginning and 79.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.45ms. Allocated memory is still 125.8MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 938.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 228.79ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 67.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4481.96ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 85.4MB in the end (delta: -18.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 29.64ms. Allocated memory is still 155.2MB. Free memory was 85.4MB in the beginning and 83.4MB in the end (delta: 2.1MB). 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 25 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 236 HoareAnnotationTreeSize, 3 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 4 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 17/25 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: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 58, TOOLS_POST_TIME: 0.6s, 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: 58, TOOLS_QUANTIFIERELIM_TIME: 0.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 100, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 10, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, 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: 327, DAG_COMPRESSION_RETAINED_NODES: 69, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((((unknown-#StackHeapBarrier-unknown < A && ((((((((((0 <= #NULL && A <= 0) && 1 <= i) && i <= 2147483647) && 0 <= A) && #NULL <= 0) && 0 <= A) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && A <= 0) && i <= 0) && #NULL <= 0) && 0 <= i) && 0 <= A) && #NULL <= 0) && 0 <= #NULL))) && 2 == unknown-#length-unknown[1]) && \valid[A] == 1) && \valid[1] == 1) && \valid[0] == 0) && 12 == unknown-#length-unknown[2]) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#length-unknown[A] == 4096) && 0 < unknown-#StackHeapBarrier-unknown) || (1 <= i && ((((((((((0 <= #NULL && A <= 0) && 1 <= i) && i <= 2147483647) && 0 <= A) && #NULL <= 0) && 0 <= A) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && A <= 0) && i <= 0) && #NULL <= 0) && 0 <= i) && 0 <= A) && #NULL <= 0) && 0 <= #NULL))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((0 <= #NULL && A <= 0) && 1 <= i) && i <= 2147483647) && 0 <= A) && #NULL <= 0) && 0 <= A) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || ((((((((A <= 0 && 0 <= A) && i <= 0) && #NULL <= 0) && 0 <= i) && 0 <= A) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 05:13:00,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063c4506-1759-4be2-89a3-332dbb780df9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE