./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/nr4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/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_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/nr4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/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_7e5250df-084b-4165-a5e8-69609e2dbec9/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 3219130777e42bfc39497c312a66c6d1b1af231a6df358861eaa545434d20cb1 --- 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 10:48:55,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:48:55,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:48:55,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:48:55,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:48:55,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:48:55,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:48:55,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:48:55,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:48:55,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:48:55,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:48:55,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:48:55,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:48:55,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:48:55,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:48:55,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:48:55,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:48:55,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:48:55,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:48:55,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:48:55,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:48:55,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:48:55,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:48:55,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:48:55,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:48:55,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:48:55,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:48:55,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:48:55,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:48:55,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:48:55,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:48:55,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:48:55,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:48:55,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:48:55,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:48:55,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:48:55,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:48:55,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:48:55,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:48:55,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:48:55,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:48:55,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:48:55,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:48:55,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:48:55,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:48:55,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:48:55,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:48:55,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:48:55,466 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:48:55,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:48:55,466 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:48:55,466 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:48:55,466 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:48:55,467 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:48:55,467 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:48:55,467 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:48:55,467 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:48:55,467 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:48:55,468 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:48:55,468 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:48:55,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:48:55,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:48:55,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:48:55,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:48:55,470 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:48:55,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:48:55,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:48:55,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:48:55,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:48:55,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:48:55,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:48:55,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:48:55,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:48:55,472 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:48:55,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:48:55,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:48:55,472 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:48:55,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:48:55,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:48:55,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:48:55,473 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_7e5250df-084b-4165-a5e8-69609e2dbec9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3219130777e42bfc39497c312a66c6d1b1af231a6df358861eaa545434d20cb1 [2022-12-14 10:48:55,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:48:55,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:48:55,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:48:55,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:48:55,673 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:48:55,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-tiling/nr4.c [2022-12-14 10:48:58,211 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:48:58,368 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:48:58,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/sv-benchmarks/c/array-tiling/nr4.c [2022-12-14 10:48:58,374 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/data/a46eb090a/e629f07aaf054e4fb3debac7dce184a3/FLAG4971b1983 [2022-12-14 10:48:58,786 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/data/a46eb090a/e629f07aaf054e4fb3debac7dce184a3 [2022-12-14 10:48:58,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:48:58,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:48:58,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:48:58,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:48:58,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:48:58,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:58,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e1bd4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58, skipping insertion in model container [2022-12-14 10:48:58,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:58,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:48:58,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:48:58,923 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_7e5250df-084b-4165-a5e8-69609e2dbec9/sv-benchmarks/c/array-tiling/nr4.c[394,407] [2022-12-14 10:48:58,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:48:58,945 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:48:58,954 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_7e5250df-084b-4165-a5e8-69609e2dbec9/sv-benchmarks/c/array-tiling/nr4.c[394,407] [2022-12-14 10:48:58,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:48:58,973 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:48:58,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58 WrapperNode [2022-12-14 10:48:58,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:48:58,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:48:58,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:48:58,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:48:58,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:58,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,006 INFO L138 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2022-12-14 10:48:59,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:48:59,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:48:59,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:48:59,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:48:59,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:48:59,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:48:59,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:48:59,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:48:59,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (1/1) ... [2022-12-14 10:48:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:48:59,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:48:59,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:48:59,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:48:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:48:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:48:59,141 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:48:59,142 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:48:59,290 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:48:59,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:48:59,326 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:48:59,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:48:59 BoogieIcfgContainer [2022-12-14 10:48:59,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:48:59,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:48:59,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:48:59,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:48:59,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:48:58" (1/3) ... [2022-12-14 10:48:59,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d260c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:48:59, skipping insertion in model container [2022-12-14 10:48:59,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:48:58" (2/3) ... [2022-12-14 10:48:59,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d260c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:48:59, skipping insertion in model container [2022-12-14 10:48:59,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:48:59" (3/3) ... [2022-12-14 10:48:59,334 INFO L112 eAbstractionObserver]: Analyzing ICFG nr4.c [2022-12-14 10:48:59,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:48:59,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-14 10:48:59,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:48:59,407 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;@3ec97921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:48:59,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-14 10:48:59,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 43 states have internal predecessors, (50), 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 10:48:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:48:59,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:48:59,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:48:59,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:48:59,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:48:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash 4507266, now seen corresponding path program 1 times [2022-12-14 10:48:59,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:48:59,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203536161] [2022-12-14 10:48:59,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:48:59,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:48:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:48:59,674 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 10:48:59,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:48:59,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203536161] [2022-12-14 10:48:59,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203536161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:48:59,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:48:59,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:48:59,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903906996] [2022-12-14 10:48:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:48:59,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:48:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:48:59,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:48:59,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:48:59,709 INFO L87 Difference]: Start difference. First operand has 44 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 43 states have internal predecessors, (50), 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 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:48:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:48:59,763 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2022-12-14 10:48:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:48:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:48:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:48:59,773 INFO L225 Difference]: With dead ends: 58 [2022-12-14 10:48:59,773 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 10:48:59,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:48:59,780 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 87 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:48:59,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 38 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:48:59,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 10:48:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-12-14 10:48:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.72) internal successors, (43), 39 states have internal predecessors, (43), 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 10:48:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 10:48:59,803 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 4 [2022-12-14 10:48:59,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:48:59,804 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 10:48:59,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:48:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 10:48:59,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:48:59,804 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:48:59,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:48:59,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:48:59,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:48:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:48:59,805 INFO L85 PathProgramCache]: Analyzing trace with hash 139725300, now seen corresponding path program 1 times [2022-12-14 10:48:59,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:48:59,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753141839] [2022-12-14 10:48:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:48:59,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:48:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:48:59,989 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 10:48:59,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:48:59,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753141839] [2022-12-14 10:48:59,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753141839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:48:59,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:48:59,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:48:59,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451035263] [2022-12-14 10:48:59,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:48:59,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:48:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:48:59,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:48:59,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:48:59,991 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 10:49:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,013 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-12-14 10:49:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:49:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 5 [2022-12-14 10:49:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,014 INFO L225 Difference]: With dead ends: 40 [2022-12-14 10:49:00,015 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 10:49:00,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:49:00,016 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 10:49:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 10:49:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.68) internal successors, (42), 38 states have internal predecessors, (42), 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 10:49:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-12-14 10:49:00,020 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 5 [2022-12-14 10:49:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,020 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-12-14 10:49:00,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 10:49:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-12-14 10:49:00,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:49:00,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:49:00,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 733164359, now seen corresponding path program 1 times [2022-12-14 10:49:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139564516] [2022-12-14 10:49:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,060 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 10:49:00,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139564516] [2022-12-14 10:49:00,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139564516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:00,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283943939] [2022-12-14 10:49:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:00,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:00,063 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10:49:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,107 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-12-14 10:49:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 10:49:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,108 INFO L225 Difference]: With dead ends: 98 [2022-12-14 10:49:00,108 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 10:49:00,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 10:49:00,109 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 49 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 10:49:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2022-12-14 10:49:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 39 states have internal predecessors, (43), 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 10:49:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 10:49:00,114 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 8 [2022-12-14 10:49:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,115 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 10:49:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10:49:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 10:49:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:49:00,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:49:00,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1253145385, now seen corresponding path program 1 times [2022-12-14 10:49:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690273491] [2022-12-14 10:49:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,166 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 10:49:00,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690273491] [2022-12-14 10:49:00,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690273491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835916624] [2022-12-14 10:49:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,169 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 10:49:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,217 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-12-14 10:49:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 10:49:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,218 INFO L225 Difference]: With dead ends: 45 [2022-12-14 10:49:00,218 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 10:49:00,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:49:00,220 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 86 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 10:49:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 10:49:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 42 states have internal predecessors, (46), 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 10:49:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-12-14 10:49:00,224 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 9 [2022-12-14 10:49:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,225 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-12-14 10:49:00,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 10:49:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-12-14 10:49:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:49:00,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:49:00,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1253164894, now seen corresponding path program 1 times [2022-12-14 10:49:00,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967803854] [2022-12-14 10:49:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,265 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 10:49:00,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967803854] [2022-12-14 10:49:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967803854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:49:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653724857] [2022-12-14 10:49:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,268 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 10:49:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,303 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2022-12-14 10:49:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 10:49:00,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,304 INFO L225 Difference]: With dead ends: 97 [2022-12-14 10:49:00,304 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 10:49:00,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,305 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 53 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 10:49:00,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2022-12-14 10:49:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 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 10:49:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2022-12-14 10:49:00,309 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 9 [2022-12-14 10:49:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,309 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2022-12-14 10:49:00,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 10:49:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2022-12-14 10:49:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:49:00,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:49:00,310 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1253164574, now seen corresponding path program 1 times [2022-12-14 10:49:00,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918829768] [2022-12-14 10:49:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,335 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 10:49:00,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918829768] [2022-12-14 10:49:00,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918829768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:49:00,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141711636] [2022-12-14 10:49:00,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:00,337 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 10:49:00,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,384 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2022-12-14 10:49:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:00,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 10:49:00,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,385 INFO L225 Difference]: With dead ends: 77 [2022-12-14 10:49:00,385 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 10:49:00,385 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 10:49:00,386 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 40 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 10:49:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 62. [2022-12-14 10:49:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 61 states have internal predecessors, (74), 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 10:49:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2022-12-14 10:49:00,391 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 9 [2022-12-14 10:49:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,391 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2022-12-14 10:49:00,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 10:49:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2022-12-14 10:49:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:49:00,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:49:00,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1700315104, now seen corresponding path program 1 times [2022-12-14 10:49:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378283083] [2022-12-14 10:49:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,428 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 10:49:00,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378283083] [2022-12-14 10:49:00,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378283083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:00,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16355640] [2022-12-14 10:49:00,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,431 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 10:49:00,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,490 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-12-14 10:49:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 11 [2022-12-14 10:49:00,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,490 INFO L225 Difference]: With dead ends: 84 [2022-12-14 10:49:00,490 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 10:49:00,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,491 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 38 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 45 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:00,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 10:49:00,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 66. [2022-12-14 10:49:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.5) internal successors, (78), 65 states have internal predecessors, (78), 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 10:49:00,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2022-12-14 10:49:00,496 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 11 [2022-12-14 10:49:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,497 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2022-12-14 10:49:00,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 10:49:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2022-12-14 10:49:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:49:00,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,497 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:49:00,497 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash 598563555, now seen corresponding path program 1 times [2022-12-14 10:49:00,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356898050] [2022-12-14 10:49:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:49:00,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356898050] [2022-12-14 10:49:00,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356898050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:49:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062569254] [2022-12-14 10:49:00,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,605 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 10:49:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,658 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2022-12-14 10:49:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 12 [2022-12-14 10:49:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,659 INFO L225 Difference]: With dead ends: 85 [2022-12-14 10:49:00,659 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 10:49:00,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,660 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 90 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 36 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 10:49:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2022-12-14 10:49:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 65 states have internal predecessors, (77), 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 10:49:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-12-14 10:49:00,665 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 12 [2022-12-14 10:49:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,665 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-12-14 10:49:00,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 10:49:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-12-14 10:49:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:49:00,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:49:00,666 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash -756947920, now seen corresponding path program 1 times [2022-12-14 10:49:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753312164] [2022-12-14 10:49:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,698 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 10:49:00,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753312164] [2022-12-14 10:49:00,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753312164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349266077] [2022-12-14 10:49:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,700 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:49:00,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,738 INFO L93 Difference]: Finished difference Result 82 states and 95 transitions. [2022-12-14 10:49:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 10:49:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,739 INFO L225 Difference]: With dead ends: 82 [2022-12-14 10:49:00,739 INFO L226 Difference]: Without dead ends: 80 [2022-12-14 10:49:00,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:49:00,740 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 83 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-12-14 10:49:00,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2022-12-14 10:49:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.467741935483871) internal successors, (91), 75 states have internal predecessors, (91), 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 10:49:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-12-14 10:49:00,745 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 14 [2022-12-14 10:49:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,745 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-12-14 10:49:00,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:49:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-12-14 10:49:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:49:00,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:49:00,746 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1657085202, now seen corresponding path program 1 times [2022-12-14 10:49:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907613287] [2022-12-14 10:49:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:49:00,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907613287] [2022-12-14 10:49:00,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907613287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:00,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:00,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393004367] [2022-12-14 10:49:00,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:00,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:00,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:00,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:00,784 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 10:49:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:00,834 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-12-14 10:49:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:00,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) Word has length 17 [2022-12-14 10:49:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:00,835 INFO L225 Difference]: With dead ends: 86 [2022-12-14 10:49:00,835 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 10:49:00,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:49:00,836 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:00,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 60 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 10:49:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2022-12-14 10:49:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 64 states have (on average 1.453125) internal successors, (93), 77 states have internal predecessors, (93), 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 10:49:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2022-12-14 10:49:00,841 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 17 [2022-12-14 10:49:00,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:00,841 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2022-12-14 10:49:00,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 10:49:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2022-12-14 10:49:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 10:49:00,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:00,842 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:00,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:49:00,842 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash 38751577, now seen corresponding path program 1 times [2022-12-14 10:49:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:00,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123700657] [2022-12-14 10:49:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,902 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 10:49:00,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:00,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123700657] [2022-12-14 10:49:00,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123700657] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:00,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038644441] [2022-12-14 10:49:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:00,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:00,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:00,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:00,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:49:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:00,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:49:00,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:01,050 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 10:49:01,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:01,096 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 10:49:01,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038644441] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:01,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [680539238] [2022-12-14 10:49:01,112 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-12-14 10:49:01,112 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:01,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:01,119 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:01,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:01,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,206 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:49:01,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:49:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:49:01,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 95 [2022-12-14 10:49:01,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 110 [2022-12-14 10:49:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:49:01,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:01,845 INFO L321 Elim1Store]: treesize reduction 127, result has 5.2 percent of original size [2022-12-14 10:49:01,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 615 treesize of output 597 [2022-12-14 10:49:01,965 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 18 treesize of output 14 [2022-12-14 10:49:02,174 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:49:03,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [680539238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:03,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:49:03,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 6, 6] total 25 [2022-12-14 10:49:03,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850866176] [2022-12-14 10:49:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 10:49:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 10:49:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2022-12-14 10:49:03,833 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 10:49:05,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:05,350 INFO L93 Difference]: Finished difference Result 132 states and 157 transitions. [2022-12-14 10:49:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 10:49:05,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 20 [2022-12-14 10:49:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:05,352 INFO L225 Difference]: With dead ends: 132 [2022-12-14 10:49:05,352 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 10:49:05,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 34 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2022-12-14 10:49:05,353 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 165 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:05,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 64 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:49:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 10:49:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2022-12-14 10:49:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 74 states have internal predecessors, (84), 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 10:49:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2022-12-14 10:49:05,363 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 20 [2022-12-14 10:49:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:05,363 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2022-12-14 10:49:05,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 10:49:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2022-12-14 10:49:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 10:49:05,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:05,364 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:05,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:49:05,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 10:49:05,566 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:05,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1747968747, now seen corresponding path program 1 times [2022-12-14 10:49:05,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:05,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320142261] [2022-12-14 10:49:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 10:49:05,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:05,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320142261] [2022-12-14 10:49:05,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320142261] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:05,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310051953] [2022-12-14 10:49:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:05,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:05,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:05,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:05,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:49:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:05,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:49:05,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:49:05,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:49:05,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310051953] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:05,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2118154312] [2022-12-14 10:49:05,792 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 10:49:05,792 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:05,792 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:05,792 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:05,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:05,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:05,846 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:49:05,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:49:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:05,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:49:05,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:05,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 95 [2022-12-14 10:49:06,010 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 110 [2022-12-14 10:49:06,162 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:49:06,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:06,560 INFO L321 Elim1Store]: treesize reduction 127, result has 5.2 percent of original size [2022-12-14 10:49:06,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 651 treesize of output 633 [2022-12-14 10:49:06,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:06,871 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 18 treesize of output 14 [2022-12-14 10:49:06,961 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 18 treesize of output 14 [2022-12-14 10:49:07,096 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 18 treesize of output 14 [2022-12-14 10:49:07,134 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 18 treesize of output 14 [2022-12-14 10:49:07,299 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 18 treesize of output 14 [2022-12-14 10:49:07,353 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 18 treesize of output 14 [2022-12-14 10:49:07,523 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:49:08,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2118154312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:08,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:49:08,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 6, 6] total 26 [2022-12-14 10:49:08,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249697836] [2022-12-14 10:49:08,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:08,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 10:49:08,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:08,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 10:49:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2022-12-14 10:49:08,817 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:49:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:11,066 INFO L93 Difference]: Finished difference Result 120 states and 148 transitions. [2022-12-14 10:49:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:49:11,066 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 10:49:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:11,067 INFO L225 Difference]: With dead ends: 120 [2022-12-14 10:49:11,067 INFO L226 Difference]: Without dead ends: 72 [2022-12-14 10:49:11,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 10:49:11,068 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 58 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:11,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 29 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:49:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-14 10:49:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2022-12-14 10:49:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 64 states have internal predecessors, (70), 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 10:49:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2022-12-14 10:49:11,074 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 33 [2022-12-14 10:49:11,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:11,074 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2022-12-14 10:49:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:49:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2022-12-14 10:49:11,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 10:49:11,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:11,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:11,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:49:11,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:11,277 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:11,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:11,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2124968820, now seen corresponding path program 1 times [2022-12-14 10:49:11,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:11,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972639747] [2022-12-14 10:49:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:11,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:49:11,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972639747] [2022-12-14 10:49:11,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972639747] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:11,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361812986] [2022-12-14 10:49:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:11,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:11,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:11,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:11,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:49:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:11,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:49:11,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:49:11,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:49:11,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361812986] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:11,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [326346320] [2022-12-14 10:49:11,529 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 10:49:11,529 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:11,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:11,530 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:11,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:11,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:11,583 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-12-14 10:49:11,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 42 [2022-12-14 10:49:11,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:11,614 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:49:11,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:49:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:11,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 95 [2022-12-14 10:49:11,733 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:11,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 110 [2022-12-14 10:49:11,855 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:12,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:49:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:12,207 INFO L321 Elim1Store]: treesize reduction 127, result has 5.2 percent of original size [2022-12-14 10:49:12,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 651 treesize of output 633 [2022-12-14 10:49:12,430 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:12,527 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 18 treesize of output 14 [2022-12-14 10:49:12,603 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 18 treesize of output 14 [2022-12-14 10:49:12,696 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 18 treesize of output 14 [2022-12-14 10:49:12,715 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 18 treesize of output 14 [2022-12-14 10:49:12,816 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 18 treesize of output 14 [2022-12-14 10:49:12,879 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 18 treesize of output 14 [2022-12-14 10:49:13,282 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:49:14,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [326346320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:14,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:49:14,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6, 6, 6] total 31 [2022-12-14 10:49:14,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949362708] [2022-12-14 10:49:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:14,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 10:49:14,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:14,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 10:49:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=756, Unknown=0, NotChecked=0, Total=930 [2022-12-14 10:49:14,857 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 10:49:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:18,944 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2022-12-14 10:49:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 10:49:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 36 [2022-12-14 10:49:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:18,945 INFO L225 Difference]: With dead ends: 67 [2022-12-14 10:49:18,945 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 10:49:18,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 75 SyntacticMatches, 9 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=431, Invalid=1825, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 10:49:18,946 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 122 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:18,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:49:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 10:49:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-12-14 10:49:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.15) internal successors, (69), 63 states have internal predecessors, (69), 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 10:49:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-12-14 10:49:18,952 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 36 [2022-12-14 10:49:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:18,952 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-12-14 10:49:18,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 10:49:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-12-14 10:49:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 10:49:18,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:18,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:18,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:49:19,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 10:49:19,154 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:19,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1449523844, now seen corresponding path program 1 times [2022-12-14 10:49:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:19,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536424972] [2022-12-14 10:49:19,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:19,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 10:49:19,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536424972] [2022-12-14 10:49:19,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536424972] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663975560] [2022-12-14 10:49:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:19,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:19,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:49:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:19,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:49:19,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 10:49:19,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 10:49:19,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663975560] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:19,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [213386558] [2022-12-14 10:49:19,417 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 10:49:19,417 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:19,417 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:19,417 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:19,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:19,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:19,461 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-12-14 10:49:19,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 42 [2022-12-14 10:49:19,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:19,494 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:49:19,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:49:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:19,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 95 [2022-12-14 10:49:19,617 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:19,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 110 [2022-12-14 10:49:19,759 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:20,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:49:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:20,152 INFO L321 Elim1Store]: treesize reduction 127, result has 5.2 percent of original size [2022-12-14 10:49:20,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 651 treesize of output 633 [2022-12-14 10:49:20,534 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:20,627 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 18 treesize of output 14 [2022-12-14 10:49:20,683 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 18 treesize of output 14 [2022-12-14 10:49:20,803 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 18 treesize of output 14 [2022-12-14 10:49:20,830 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 18 treesize of output 14 [2022-12-14 10:49:20,978 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 18 treesize of output 14 [2022-12-14 10:49:21,056 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 18 treesize of output 14 [2022-12-14 10:49:21,457 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:49:23,366 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3021#(and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= 2 |ULTIMATE.start_main_~MINVAL~0#1|) (<= ~CELLCOUNT~0 2147483647) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 1 ~CELLCOUNT~0) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#volArray~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:49:23,366 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:49:23,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:49:23,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2022-12-14 10:49:23,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547333713] [2022-12-14 10:49:23,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:49:23,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 10:49:23,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:23,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 10:49:23,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=848, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:49:23,367 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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 10:49:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:23,622 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2022-12-14 10:49:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 10:49:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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 37 [2022-12-14 10:49:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:23,623 INFO L225 Difference]: With dead ends: 158 [2022-12-14 10:49:23,623 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 10:49:23,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 77 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=269, Invalid=1623, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 10:49:23,623 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 148 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:23,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 81 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 10:49:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2022-12-14 10:49:23,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 100 states have internal predecessors, (107), 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 10:49:23,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2022-12-14 10:49:23,637 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 37 [2022-12-14 10:49:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:23,638 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2022-12-14 10:49:23,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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 10:49:23,638 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2022-12-14 10:49:23,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 10:49:23,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:23,639 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:23,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 10:49:23,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 10:49:23,841 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:23,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1776495160, now seen corresponding path program 2 times [2022-12-14 10:49:23,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:23,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917543981] [2022-12-14 10:49:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:23,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-14 10:49:23,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917543981] [2022-12-14 10:49:23,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917543981] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558222728] [2022-12-14 10:49:23,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:49:23,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:23,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:23,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:24,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:49:24,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:49:24,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:49:24,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:49:24,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 10:49:24,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 10:49:24,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558222728] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:24,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1286403309] [2022-12-14 10:49:24,150 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 10:49:24,150 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:24,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:24,150 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:24,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:24,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,197 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:49:24,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:49:24,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:49:24,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 95 [2022-12-14 10:49:24,323 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:24,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 110 [2022-12-14 10:49:24,463 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:24,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:49:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:49:24,813 INFO L321 Elim1Store]: treesize reduction 127, result has 5.2 percent of original size [2022-12-14 10:49:24,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 651 treesize of output 633 [2022-12-14 10:49:25,041 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:49:25,151 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 18 treesize of output 14 [2022-12-14 10:49:25,219 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 18 treesize of output 14 [2022-12-14 10:49:25,321 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 18 treesize of output 14 [2022-12-14 10:49:25,349 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 18 treesize of output 14 [2022-12-14 10:49:25,457 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 18 treesize of output 14 [2022-12-14 10:49:25,504 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 18 treesize of output 14 [2022-12-14 10:49:25,884 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:49:28,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3714#(and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= 2 |ULTIMATE.start_main_~MINVAL~0#1|) (<= ~CELLCOUNT~0 2147483647) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 1 ~CELLCOUNT~0) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#volArray~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:49:28,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:49:28,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:49:28,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 2, 2] total 9 [2022-12-14 10:49:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211810585] [2022-12-14 10:49:28,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:49:28,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 10:49:28,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 10:49:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2022-12-14 10:49:28,048 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 10:49:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:28,222 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2022-12-14 10:49:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 10:49:28,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 58 [2022-12-14 10:49:28,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:28,224 INFO L225 Difference]: With dead ends: 104 [2022-12-14 10:49:28,224 INFO L226 Difference]: Without dead ends: 90 [2022-12-14 10:49:28,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 140 SyntacticMatches, 14 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 10:49:28,225 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:28,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 71 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-14 10:49:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-12-14 10:49:28,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 87 states have (on average 1.0919540229885059) internal successors, (95), 89 states have internal predecessors, (95), 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 10:49:28,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2022-12-14 10:49:28,233 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 58 [2022-12-14 10:49:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:28,233 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2022-12-14 10:49:28,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 10:49:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2022-12-14 10:49:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 10:49:28,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:28,234 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:28,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:49:28,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:28,435 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1292863958, now seen corresponding path program 1 times [2022-12-14 10:49:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:28,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777620697] [2022-12-14 10:49:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:28,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 10:49:28,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777620697] [2022-12-14 10:49:28,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777620697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:28,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:28,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:49:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637042434] [2022-12-14 10:49:28,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:28,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:28,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:28,477 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:49:28,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:28,504 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2022-12-14 10:49:28,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:28,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 61 [2022-12-14 10:49:28,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:28,505 INFO L225 Difference]: With dead ends: 90 [2022-12-14 10:49:28,505 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 10:49:28,505 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 10:49:28,506 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:28,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:28,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 10:49:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-12-14 10:49:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.0574712643678161) internal successors, (92), 87 states have internal predecessors, (92), 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 10:49:28,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2022-12-14 10:49:28,519 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 61 [2022-12-14 10:49:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:28,520 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2022-12-14 10:49:28,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:49:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2022-12-14 10:49:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 10:49:28,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:28,521 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 10:49:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:49:28,521 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-12-14 10:49:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:28,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1687477280, now seen corresponding path program 1 times [2022-12-14 10:49:28,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:28,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795390837] [2022-12-14 10:49:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:28,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-14 10:49:28,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:28,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795390837] [2022-12-14 10:49:28,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795390837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:28,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:28,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:28,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448328409] [2022-12-14 10:49:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:28,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:49:28,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:49:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:28,610 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 10:49:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:28,643 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2022-12-14 10:49:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:49:28,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 87 [2022-12-14 10:49:28,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:28,644 INFO L225 Difference]: With dead ends: 88 [2022-12-14 10:49:28,644 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:49:28,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:49:28,645 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:28,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:49:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:49:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:49:28,646 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 10:49:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:49:28,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2022-12-14 10:49:28,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:28,646 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:49:28,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 10:49:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:49:28,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:49:28,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-12-14 10:49:28,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-12-14 10:49:28,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-12-14 10:49:28,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-12-14 10:49:28,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:49:28,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:49:29,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,686 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,686 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 40) no Hoare annotation was computed. [2022-12-14 10:49:29,686 INFO L899 garLoopResultBuilder]: For program point L27-5(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,686 INFO L899 garLoopResultBuilder]: For program point L27-6(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,687 INFO L895 garLoopResultBuilder]: At program point L27-7(lines 27 40) the Hoare annotation is: (let ((.cse26 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse30 (select |#memory_int| 1)) (.cse27 (select |#memory_int| 2))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= (* (mod ~CELLCOUNT~0 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#volArray~0#1.base|))) (.cse2 (= (select |#valid| |ULTIMATE.start_main_~#volArray~0#1.base|) 1)) (.cse3 (= (select .cse27 5) 0)) (.cse4 (= 114 (select .cse27 1))) (.cse5 (<= 2 ~CELLCOUNT~0)) (.cse6 (= 52 (select .cse27 2))) (.cse7 (= 2 (select |#length| 1))) (.cse8 (= (select |#valid| 3) 1)) (.cse9 (= 2 |ULTIMATE.start_main_~MINVAL~0#1|)) (.cse10 (<= ~CELLCOUNT~0 2147483647)) (.cse11 (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0)) (.cse12 (= (select |#valid| 1) 1)) (.cse13 (= (select .cse27 4) 99)) (.cse14 (= (select .cse27 0) 110)) (.cse15 (= (select |#valid| 0) 0)) (.cse16 (= (select |#valid| 2) 1)) (.cse17 (= |#NULL.offset| 0)) (.cse18 (= (select .cse30 0) 48)) (.cse19 (= (select .cse30 1) 0)) (.cse20 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#volArray~0#1.base|)) (.cse21 (or (let ((.cse28 (= (let ((.cse29 (mod ~CELLCOUNT~0 4))) (ite (and (not (= .cse29 0)) (< ~CELLCOUNT~0 0)) (+ .cse29 (- 4)) .cse29)) 0))) (and .cse26 .cse28 (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (= (ite .cse28 1 0) |ULTIMATE.start_assume_abort_if_not_#in~cond#1|))) (and (<= 2 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~j~0#1| 1)))) (.cse22 (= 46 (select .cse27 3))) (.cse23 (= 6 (select |#length| 2))) (.cse24 (< 0 |#StackHeapBarrier|)) (.cse25 (= |#NULL.base| 0))) (or (and .cse0 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) .cse12 .cse13 .cse14 (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 4) 4)) .cse15 .cse16 .cse17 .cse18 (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) .cse19 .cse20 (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse21 .cse22 .cse23 .cse24 .cse25) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse26 .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25)))) [2022-12-14 10:49:29,687 INFO L899 garLoopResultBuilder]: For program point L27-8(lines 27 40) no Hoare annotation was computed. [2022-12-14 10:49:29,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-14 10:49:29,687 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 48) the Hoare annotation is: true [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,688 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 39) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 39) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select |#length| 3) 12) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (= (* (mod ~CELLCOUNT~0 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#volArray~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#volArray~0#1.base|) 1) (= (select .cse0 5) 0) (<= |ULTIMATE.start_main_~j~0#1| 4) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 536870911) (= 114 (select .cse0 1)) (<= 2 ~CELLCOUNT~0) (= 52 (select .cse0 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~MINVAL~0#1|) (<= ~CELLCOUNT~0 2147483647) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= (select |#valid| 1) 1) (= (select .cse0 4) 99) (= (select .cse0 0) 110) (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 4) 4)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select .cse1 1) 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#volArray~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= 46 (select .cse0 3)) (= 6 (select |#length| 2)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 38) no Hoare annotation was computed. [2022-12-14 10:49:29,689 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 46) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 16 46) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L895 garLoopResultBuilder]: At program point L42-5(lines 42 45) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select |#length| 3) 12) (= (* (mod ~CELLCOUNT~0 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#volArray~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#volArray~0#1.base|) 1) (= (select .cse0 5) 0) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= 114 (select .cse0 1)) (<= 2 ~CELLCOUNT~0) (= 52 (select .cse0 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~MINVAL~0#1|) (<= ~CELLCOUNT~0 2147483647) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= (select |#valid| 1) 1) (= (select .cse0 4) 99) (= (select .cse0 0) 110) (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 4) 4)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select .cse1 1) 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#volArray~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= 46 (select .cse0 3)) (= 6 (select |#length| 2)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-14 10:49:29,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 10:49:29,694 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:29,695 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:49:29,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:49:29 BoogieIcfgContainer [2022-12-14 10:49:29,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:49:29,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:49:29,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:49:29,717 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:49:29,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:48:59" (3/4) ... [2022-12-14 10:49:29,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:49:29,728 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 10:49:29,729 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 10:49:29,729 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 10:49:29,729 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:49:29,729 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:49:29,746 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= j + 2147483648) && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && i <= 2147483647) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && ((((i == 1 && (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0) && !(cond == 0)) && (if (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0 then 1 else 0) == \old(cond)) || (2 <= i && j < 1))) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && i == 1) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && \old(cond) == cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && ((((i == 1 && (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0) && !(cond == 0)) && (if (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0 then 1 else 0) == \old(cond)) || (2 <= i && j < 1))) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-12-14 10:49:29,746 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && i <= 2147483647) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 10:49:29,746 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= j + 2147483648) && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && j <= 4) && 1 <= i) && i <= 536870911) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 10:49:29,756 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:49:29,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:49:29,756 INFO L158 Benchmark]: Toolchain (without parser) took 30967.21ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 82.8MB in the beginning and 110.2MB in the end (delta: -27.4MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,757 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:49:29,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.05ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 72.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.06ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,757 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:49:29,758 INFO L158 Benchmark]: RCFGBuilder took 297.60ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 52.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,758 INFO L158 Benchmark]: TraceAbstraction took 30386.52ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 51.4MB in the beginning and 113.4MB in the end (delta: -62.0MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,758 INFO L158 Benchmark]: Witness Printer took 39.69ms. Allocated memory is still 209.7MB. Free memory was 113.4MB in the beginning and 110.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:49:29,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.05ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 72.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.06ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.60ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 52.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30386.52ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 51.4MB in the beginning and 113.4MB in the end (delta: -62.0MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Witness Printer took 39.69ms. Allocated memory is still 209.7MB. Free memory was 113.4MB in the beginning and 110.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: 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, 44 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 17, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 964 mSDsluCounter, 807 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 455 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1548 IncrementalHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 352 mSDtfsCounter, 1548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 670 GetRequests, 409 SyntacticMatches, 49 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=14, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 99 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 23 NumberOfFragments, 739 HoareAnnotationTreeSize, 4 FomulaSimplifications, 246 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2489 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 614 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 771 ConstructedInterpolants, 0 QuantifiedInterpolants, 1970 SizeOfPredicates, 15 NumberOfNonLiveVariables, 559 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 27 InterpolantComputations, 12 PerfectInterpolantSequences, 584/633 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: 4.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 92, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 422, TOOLS_POST_TIME: 3.8s, 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: 358, TOOLS_QUANTIFIERELIM_TIME: 3.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 568, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 38, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 29, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 92, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 18, LOOP_SUMMARIZER_CACHE_MISSES: 18, LOOP_SUMMARIZER_OVERALL_TIME: 3.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 29, 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: 3070, DAG_COMPRESSION_RETAINED_NODES: 265, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && i <= 2147483647) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= j + 2147483648) && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && i <= 2147483647) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && ((((i == 1 && (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0) && !(cond == 0)) && (if (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0 then 1 else 0) == \old(cond)) || (2 <= i && j < 1))) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && i == 1) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && \old(cond) == cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && ((((i == 1 && (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0) && !(cond == 0)) && (if (if !(CELLCOUNT % 4 == 0) && CELLCOUNT < 0 then CELLCOUNT % 4 + -4 else CELLCOUNT % 4) == 0 then 1 else 0) == \old(cond)) || (2 <= i && j < 1))) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= j + 2147483648) && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && j <= 4) && 1 <= i) && i <= 536870911) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && 52 == unknown-#memory_int-unknown[2][2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == MINVAL) && CELLCOUNT <= 2147483647) && volArray == 0) && 0 <= \old(cond)) && 0 <= cond) && \valid[1] == 1) && unknown-#memory_int-unknown[2][4] == 99) && unknown-#memory_int-unknown[2][0] == 110) && CELLCOUNT == CELLCOUNT / 4 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 10:49:29,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5250df-084b-4165-a5e8-69609e2dbec9/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