./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bAnd1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/bAnd1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad5600d67d8e26bbe74b5b2723c79b08c56f70a1300290f9b8c920a6b187d1e0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:13:23,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:13:23,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:13:23,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:13:23,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:13:23,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:13:23,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:13:23,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:13:23,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:13:23,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:13:23,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:13:23,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:13:23,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:13:23,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:13:23,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:13:23,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:13:23,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:13:23,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:13:23,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:13:23,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:13:23,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:13:23,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:13:23,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:13:23,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:13:23,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:13:23,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:13:23,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:13:23,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:13:23,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:13:23,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:13:23,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:13:23,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:13:23,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:13:23,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:13:23,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:13:23,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:13:23,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:13:23,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:13:23,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:13:23,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:13:23,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:13:23,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:13:23,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:13:23,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:13:23,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:13:23,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:13:23,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:13:23,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:13:23,440 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:13:23,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:13:23,440 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:13:23,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:13:23,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:13:23,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:13:23,442 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:13:23,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:13:23,443 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:13:23,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:13:23,443 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:13:23,443 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:13:23,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:13:23,444 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:13:23,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:13:23,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:13:23,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:13:23,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:13:23,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:13:23,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:13:23,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:13:23,447 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:13:23,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:13:23,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:13:23,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:13:23,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:13:23,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:13:23,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:13:23,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:13:23,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:13:23,449 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:13:23,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:13:23,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:13:23,450 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:13:23,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:13:23,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:13:23,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:13:23,451 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_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad5600d67d8e26bbe74b5b2723c79b08c56f70a1300290f9b8c920a6b187d1e0 [2022-11-22 02:13:23,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:13:23,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:13:23,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:13:23,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:13:23,788 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:13:23,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-crafted/bAnd1.i [2022-11-22 02:13:26,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:13:26,995 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:13:26,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/sv-benchmarks/c/array-crafted/bAnd1.i [2022-11-22 02:13:27,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/data/745aaba62/552a70cf6d464b4896657729da713c2f/FLAG1f032b63b [2022-11-22 02:13:27,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/data/745aaba62/552a70cf6d464b4896657729da713c2f [2022-11-22 02:13:27,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:13:27,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:13:27,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:13:27,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:13:27,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:13:27,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1941639f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27, skipping insertion in model container [2022-11-22 02:13:27,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:13:27,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:13:27,239 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_31ae3752-08f0-4d1b-8eb2-429a33de01b6/sv-benchmarks/c/array-crafted/bAnd1.i[1290,1303] [2022-11-22 02:13:27,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:13:27,249 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:13:27,272 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_31ae3752-08f0-4d1b-8eb2-429a33de01b6/sv-benchmarks/c/array-crafted/bAnd1.i[1290,1303] [2022-11-22 02:13:27,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:13:27,286 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:13:27,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27 WrapperNode [2022-11-22 02:13:27,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:13:27,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:13:27,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:13:27,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:13:27,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,326 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-11-22 02:13:27,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:13:27,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:13:27,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:13:27,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:13:27,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:13:27,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:13:27,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:13:27,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:13:27,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (1/1) ... [2022-11-22 02:13:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:13:27,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:27,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:13:27,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:13:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:13:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:13:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:13:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:13:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure bAnd [2022-11-22 02:13:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bAnd [2022-11-22 02:13:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:13:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:13:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:13:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:13:27,580 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:13:27,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:13:27,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:13:27,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:13:27,957 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 02:13:27,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:27 BoogieIcfgContainer [2022-11-22 02:13:27,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:13:27,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:13:27,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:13:27,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:13:27,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:13:27" (1/3) ... [2022-11-22 02:13:27,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459d685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:27, skipping insertion in model container [2022-11-22 02:13:27,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:13:27" (2/3) ... [2022-11-22 02:13:27,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459d685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:27, skipping insertion in model container [2022-11-22 02:13:27,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:27" (3/3) ... [2022-11-22 02:13:27,978 INFO L112 eAbstractionObserver]: Analyzing ICFG bAnd1.i [2022-11-22 02:13:27,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:13:27,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 02:13:28,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:13:28,048 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;@356acc81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:13:28,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:13:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:13:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:13:28,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:28,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:13:28,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:28,067 INFO L85 PathProgramCache]: Analyzing trace with hash 128943, now seen corresponding path program 1 times [2022-11-22 02:13:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:28,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829975010] [2022-11-22 02:13:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:28,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:28,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:28,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829975010] [2022-11-22 02:13:28,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829975010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:28,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:28,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:13:28,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418588954] [2022-11-22 02:13:28,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:28,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:28,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:28,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:13:28,477 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:28,595 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2022-11-22 02:13:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:13:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:13:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:28,605 INFO L225 Difference]: With dead ends: 57 [2022-11-22 02:13:28,605 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 02:13:28,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:13:28,616 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:28,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 68 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:13:28,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 02:13:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-22 02:13:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-22 02:13:28,654 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 3 [2022-11-22 02:13:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:28,654 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-22 02:13:28,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-22 02:13:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:13:28,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:28,656 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 02:13:28,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:13:28,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash -453547412, now seen corresponding path program 1 times [2022-11-22 02:13:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:28,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002446055] [2022-11-22 02:13:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:13:28,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:28,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002446055] [2022-11-22 02:13:28,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002446055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:28,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:28,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:13:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996198966] [2022-11-22 02:13:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:28,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:13:28,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:28,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:13:28,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:13:28,725 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:28,751 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-22 02:13:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:13:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:13:28,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:28,753 INFO L225 Difference]: With dead ends: 30 [2022-11-22 02:13:28,753 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:13:28,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:13:28,755 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:28,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:13:28,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:13:28,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 02:13:28,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-22 02:13:28,762 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 6 [2022-11-22 02:13:28,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:28,762 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-22 02:13:28,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-22 02:13:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:13:28,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:28,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-22 02:13:28,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:13:28,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1175067806, now seen corresponding path program 1 times [2022-11-22 02:13:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:28,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630740387] [2022-11-22 02:13:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:28,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630740387] [2022-11-22 02:13:28,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630740387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:28,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667572943] [2022-11-22 02:13:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:28,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:28,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:28,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:28,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:13:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:29,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:13:29,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:29,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:13:29,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667572943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:29,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:13:29,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2022-11-22 02:13:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089356064] [2022-11-22 02:13:29,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:29,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:13:29,133 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:29,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:29,186 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-22 02:13:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:13:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:13:29,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:29,188 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:13:29,188 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 02:13:29,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:13:29,190 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:29,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 48 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:13:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 02:13:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-22 02:13:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-22 02:13:29,198 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2022-11-22 02:13:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:29,199 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-22 02:13:29,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-22 02:13:29,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:13:29,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:29,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:29,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:29,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:29,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 344894582, now seen corresponding path program 1 times [2022-11-22 02:13:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:29,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356384113] [2022-11-22 02:13:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:29,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356384113] [2022-11-22 02:13:29,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356384113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:29,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303653425] [2022-11-22 02:13:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:29,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:29,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:13:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:29,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:13:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:29,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:13:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:13:29,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303653425] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:13:29,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1282381404] [2022-11-22 02:13:29,713 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 02:13:29,713 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:13:29,716 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:13:29,736 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:13:29,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:13:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:29,950 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:13:29,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:13:29,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:29,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:13:30,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 112 [2022-11-22 02:13:30,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 132 [2022-11-22 02:13:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:30,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:30,480 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-22 02:13:30,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 333 treesize of output 313 [2022-11-22 02:13:30,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:13:30,688 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 12 for LOIs [2022-11-22 02:13:30,728 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:13:31,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1282381404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:31,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:13:31,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2022-11-22 02:13:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557985368] [2022-11-22 02:13:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:31,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:13:31,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:13:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:13:31,354 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:31,729 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-11-22 02:13:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:13:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:13:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:31,730 INFO L225 Difference]: With dead ends: 49 [2022-11-22 02:13:31,731 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:13:31,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:13:31,732 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 37 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:31,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 51 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:13:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:13:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 02:13:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-22 02:13:31,741 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2022-11-22 02:13:31,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:31,741 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-22 02:13:31,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-22 02:13:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:13:31,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:31,742 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:31,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:31,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:31,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1192778602, now seen corresponding path program 1 times [2022-11-22 02:13:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:31,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117419823] [2022-11-22 02:13:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:13:32,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:32,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117419823] [2022-11-22 02:13:32,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117419823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:32,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474533252] [2022-11-22 02:13:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:32,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:32,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:32,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:32,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:13:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:32,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:13:32,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:13:32,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:13:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:13:32,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474533252] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:13:32,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1953836642] [2022-11-22 02:13:32,143 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 02:13:32,143 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:13:32,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:13:32,144 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:13:32,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:13:32,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,178 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:13:32,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:13:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:13:32,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 112 [2022-11-22 02:13:32,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 127 [2022-11-22 02:13:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:32,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:32,547 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 02:13:32,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 42 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 349 treesize of output 310 [2022-11-22 02:13:32,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:13:32,671 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 12 for LOIs [2022-11-22 02:13:34,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:13:34,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1953836642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:34,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:13:34,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-11-22 02:13:34,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521056935] [2022-11-22 02:13:34,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:34,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:13:34,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:34,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:13:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:13:34,985 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:35,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:35,431 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-22 02:13:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:13:35,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 02:13:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:35,432 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:13:35,432 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 02:13:35,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:13:35,434 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:35,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 35 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:13:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 02:13:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-22 02:13:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-22 02:13:35,450 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 12 [2022-11-22 02:13:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:35,450 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-22 02:13:35,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-22 02:13:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 02:13:35,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:35,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:35,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:35,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:35,663 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash -26183244, now seen corresponding path program 1 times [2022-11-22 02:13:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:35,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835404012] [2022-11-22 02:13:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:13:35,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:35,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835404012] [2022-11-22 02:13:35,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835404012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:35,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263018266] [2022-11-22 02:13:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:35,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:35,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:35,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:35,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:13:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:35,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:13:35,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:13:35,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:13:35,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263018266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:35,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:13:35,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 02:13:35,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895922552] [2022-11-22 02:13:35,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:35,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:13:35,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:35,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:13:35,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:35,938 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:35,973 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-22 02:13:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:13:35,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-22 02:13:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:35,975 INFO L225 Difference]: With dead ends: 32 [2022-11-22 02:13:35,975 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 02:13:35,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:35,976 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:35,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:13:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 02:13:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-22 02:13:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-22 02:13:35,994 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 23 [2022-11-22 02:13:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:35,996 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-22 02:13:35,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-22 02:13:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 02:13:35,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:35,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:36,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:36,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 02:13:36,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:36,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:36,206 INFO L85 PathProgramCache]: Analyzing trace with hash -811680467, now seen corresponding path program 1 times [2022-11-22 02:13:36,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:36,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466010479] [2022-11-22 02:13:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:36,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:13:36,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466010479] [2022-11-22 02:13:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466010479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358411995] [2022-11-22 02:13:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:36,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:36,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:36,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:36,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:13:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:36,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:13:36,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:13:36,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:13:36,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358411995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:36,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:13:36,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 02:13:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245885411] [2022-11-22 02:13:36,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:36,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:13:36,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:36,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:13:36,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:36,436 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:36,497 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-11-22 02:13:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:13:36,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-22 02:13:36,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:36,499 INFO L225 Difference]: With dead ends: 32 [2022-11-22 02:13:36,499 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 02:13:36,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:36,500 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:36,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:13:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 02:13:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-22 02:13:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-22 02:13:36,509 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 24 [2022-11-22 02:13:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:36,509 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-22 02:13:36,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:36,510 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-22 02:13:36,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 02:13:36,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:36,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:36,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:36,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:36,718 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash 607710392, now seen corresponding path program 1 times [2022-11-22 02:13:36,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:36,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941670613] [2022-11-22 02:13:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:13:36,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:36,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941670613] [2022-11-22 02:13:36,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941670613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279666064] [2022-11-22 02:13:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:36,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:36,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:36,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:13:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:36,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:13:36,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:13:36,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:13:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:13:37,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279666064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:13:37,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1413217230] [2022-11-22 02:13:37,010 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 02:13:37,011 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:13:37,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:13:37,011 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:13:37,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:13:37,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,066 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:13:37,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:13:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:13:37,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 112 [2022-11-22 02:13:37,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 132 [2022-11-22 02:13:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:37,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:37,440 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-22 02:13:37,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 333 treesize of output 313 [2022-11-22 02:13:37,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:13:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:38,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:13:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:38,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:38,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-22 02:13:38,566 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 12 for LOIs [2022-11-22 02:13:39,428 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:13:40,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1413217230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:40,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:13:40,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 4, 5] total 24 [2022-11-22 02:13:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598529073] [2022-11-22 02:13:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:40,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 02:13:40,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:40,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 02:13:40,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-11-22 02:13:40,699 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:41,204 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-22 02:13:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:13:41,205 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-22 02:13:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:41,206 INFO L225 Difference]: With dead ends: 31 [2022-11-22 02:13:41,206 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:13:41,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-11-22 02:13:41,207 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 41 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:41,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 28 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:13:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:13:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 02:13:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-22 02:13:41,215 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 25 [2022-11-22 02:13:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:41,216 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-22 02:13:41,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-22 02:13:41,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 02:13:41,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:41,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:41,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:41,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:41,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:41,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:41,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1013237393, now seen corresponding path program 1 times [2022-11-22 02:13:41,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:41,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169468697] [2022-11-22 02:13:41,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:13:41,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169468697] [2022-11-22 02:13:41,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169468697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934972997] [2022-11-22 02:13:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:41,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:41,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:41,526 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:41,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:13:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:41,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:13:41,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:13:41,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:13:41,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934972997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:41,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:13:41,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 02:13:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636618127] [2022-11-22 02:13:41,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:41,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:13:41,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:41,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:13:41,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:41,645 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:41,672 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-22 02:13:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:13:41,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-22 02:13:41,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:41,673 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:13:41,673 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 02:13:41,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:13:41,675 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:41,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:13:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 02:13:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 02:13:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-22 02:13:41,683 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 28 [2022-11-22 02:13:41,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:41,683 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-22 02:13:41,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 02:13:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-22 02:13:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 02:13:41,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:41,684 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] [2022-11-22 02:13:41,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-22 02:13:41,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:41,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:13:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1345588208, now seen corresponding path program 1 times [2022-11-22 02:13:41,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:41,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653045563] [2022-11-22 02:13:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:41,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:13:41,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:41,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653045563] [2022-11-22 02:13:41,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653045563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:13:41,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131401783] [2022-11-22 02:13:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:41,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:13:41,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:13:41,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:13:42,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 02:13:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:42,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:13:42,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:13:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:13:42,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:13:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:13:42,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131401783] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:13:42,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1917037508] [2022-11-22 02:13:42,176 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 02:13:42,177 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:13:42,177 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:13:42,178 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:13:42,178 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:13:42,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,233 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:13:42,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:13:42,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:13:42,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 112 [2022-11-22 02:13:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 127 [2022-11-22 02:13:42,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:42,579 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 02:13:42,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 42 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 349 treesize of output 310 [2022-11-22 02:13:42,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:13:43,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:43,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:13:43,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:43,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:13:43,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-22 02:13:43,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2022-11-22 02:13:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:13:43,566 INFO L321 Elim1Store]: treesize reduction 47, result has 35.6 percent of original size [2022-11-22 02:13:43,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 89 [2022-11-22 02:13:43,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-22 02:13:43,741 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 12 for LOIs [2022-11-22 02:13:44,536 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:13:46,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1917037508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:46,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:13:46,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5, 4, 5] total 26 [2022-11-22 02:13:46,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612206445] [2022-11-22 02:13:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:46,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 02:13:46,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 02:13:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:13:46,421 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:46,924 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-22 02:13:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:13:46,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-11-22 02:13:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:46,925 INFO L225 Difference]: With dead ends: 28 [2022-11-22 02:13:46,925 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:13:46,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:13:46,927 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:46,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:13:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:13:46,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:13:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:13:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:13:46,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-22 02:13:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:46,929 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:13:46,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:13:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:13:46,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:13:46,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 02:13:46,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 02:13:46,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 02:13:46,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 02:13:46,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 02:13:46,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 02:13:46,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 02:13:46,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 02:13:46,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 02:13:47,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:13:47,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:13:47,954 INFO L899 garLoopResultBuilder]: For program point bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 02:13:47,954 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-22 02:13:47,954 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-11-22 02:13:47,955 INFO L899 garLoopResultBuilder]: For program point bAndEXIT(lines 18 27) no Hoare annotation was computed. [2022-11-22 02:13:47,955 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (not (= |bAnd_#in~x.offset| 0)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 |bAnd_#in~x.base|)) (and (<= 0 bAnd_~x.offset) (<= 1 bAnd_~i~0) (<= 0 bAnd_~x.base) (<= bAnd_~x.offset 0) (or (and (= bAnd_~x.base |bAnd_#in~x.base|) (= bAnd_~res~0 (select (select |#memory_int| bAnd_~x.base) bAnd_~x.offset))) (<= 2 bAnd_~i~0)))) [2022-11-22 02:13:47,955 INFO L899 garLoopResultBuilder]: For program point bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 02:13:47,955 INFO L902 garLoopResultBuilder]: At program point bAndENTRY(lines 18 27) the Hoare annotation is: true [2022-11-22 02:13:47,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 02:13:47,956 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 4 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= 100 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.base| 0)) [2022-11-22 02:13:47,956 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-22 02:13:47,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 02:13:47,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:13:47,958 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (let ((.cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|))) (let ((.cse1 (let ((.cse4 (<= 0 |#NULL.base|)) (.cse5 (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|)) (.cse6 (<= |#NULL.offset| 0)) (.cse7 (<= |#NULL.base| 0)) (.cse8 (<= 0 |#NULL.offset|)) (.cse9 (<= |ULTIMATE.start_main_~#x~0#1.offset| 0))) (or (and .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse3 .cse7 (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) .cse8 .cse9 (<= 0 |#StackHeapBarrier|)) (and .cse4 (<= 0 |ULTIMATE.start_main_~i~1#1|) .cse5 .cse6 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse7 .cse8 .cse9))))) (or (let ((.cse2 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 4) 49) .cse1 (= (select .cse0 7) 0) (= (select .cse0 6) 99) (= 2 (select |#length| 1)) (= 65 (select .cse0 1)) (= 100 (select .cse0 3)) (= (select |#valid| |ULTIMATE.start_main_~#x~0#1.base|) 1) (= (select |#valid| 1) 1) (= 400 (select |#length| |ULTIMATE.start_main_~#x~0#1.base|)) (= (select |#valid| 0) 0) (= (select .cse0 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= 110 (select .cse0 2)) (= (select .cse2 0) 48) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#x~0#1.base|) (= (select .cse2 1) 0) (= 98 (select .cse0 0)) (< 0 |#StackHeapBarrier|))) (and .cse1 .cse3)))) [2022-11-22 02:13:47,958 INFO L895 garLoopResultBuilder]: At program point L37-6(lines 37 39) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (<= 100 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.base| 0)) [2022-11-22 02:13:47,958 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-22 02:13:47,958 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (<= 100 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.base| 0)) [2022-11-22 02:13:47,959 INFO L902 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: true [2022-11-22 02:13:47,959 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2022-11-22 02:13:47,959 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2022-11-22 02:13:47,959 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~2#1|))) (and (or .cse0 (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|) |ULTIMATE.start_main_~temp~0#1|)) (let ((.cse1 (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647)) (.cse2 (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|)) (.cse3 (<= |#NULL.offset| 0)) (.cse4 (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) (.cse5 (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648))) (.cse6 (<= 0 |ULTIMATE.start_main_~#x~0#1.base|)) (.cse7 (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648))) (.cse8 (<= 0 |#NULL.offset|)) (.cse9 (<= |ULTIMATE.start_main_~#x~0#1.offset| 0))) (or (and .cse1 (<= |ULTIMATE.start_main_~i~2#1| 0) .cse2 (<= 0 |ULTIMATE.start_main_~i~2#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse0 (<= |ULTIMATE.start_main_~i~2#1| 2147483647) .cse6 .cse7 .cse8 .cse9))) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= 100 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.base| 0))) [2022-11-22 02:13:47,960 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 02:13:47,960 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-22 02:13:47,960 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-11-22 02:13:47,964 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:13:47,966 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:13:47,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:13:47 BoogieIcfgContainer [2022-11-22 02:13:47,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:13:47,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:13:47,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:13:47,993 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:13:47,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:27" (3/4) ... [2022-11-22 02:13:47,997 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:13:48,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bAnd [2022-11-22 02:13:48,009 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-11-22 02:13:48,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-22 02:13:48,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 02:13:48,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:13:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:13:48,078 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:13:48,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:13:48,079 INFO L158 Benchmark]: Toolchain (without parser) took 21056.65ms. Allocated memory was 172.0MB in the beginning and 434.1MB in the end (delta: 262.1MB). Free memory was 128.3MB in the beginning and 221.0MB in the end (delta: -92.6MB). Peak memory consumption was 171.1MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,080 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:13:48,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.77ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 117.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,082 INFO L158 Benchmark]: Boogie Preprocessor took 28.94ms. Allocated memory is still 172.0MB. Free memory was 115.8MB in the beginning and 114.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,082 INFO L158 Benchmark]: RCFGBuilder took 603.18ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 141.5MB in the end (delta: -27.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,083 INFO L158 Benchmark]: TraceAbstraction took 20020.02ms. Allocated memory was 172.0MB in the beginning and 434.1MB in the end (delta: 262.1MB). Free memory was 140.5MB in the beginning and 224.1MB in the end (delta: -83.6MB). Peak memory consumption was 178.4MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,083 INFO L158 Benchmark]: Witness Printer took 85.94ms. Allocated memory is still 434.1MB. Free memory was 224.1MB in the beginning and 221.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:13:48,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.77ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 117.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.57ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.94ms. Allocated memory is still 172.0MB. Free memory was 115.8MB in the beginning and 114.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.18ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 141.5MB in the end (delta: -27.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20020.02ms. Allocated memory was 172.0MB in the beginning and 434.1MB in the end (delta: 262.1MB). Free memory was 140.5MB in the beginning and 224.1MB in the end (delta: -83.6MB). Peak memory consumption was 178.4MB. Max. memory is 16.1GB. * Witness Printer took 85.94ms. Allocated memory is still 434.1MB. Free memory was 224.1MB in the beginning and 221.0MB 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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 2 procedures, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 356 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 627 IncrementalHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 143 mSDtfsCounter, 627 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=1, InterpolantAutomatonStates: 64, 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, 10 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 22 PreInvPairs, 32 NumberOfFragments, 466 HoareAnnotationTreeSize, 22 FomulaSimplifications, 103 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 528 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 538 SizeOfPredicates, 5 NumberOfNonLiveVariables, 992 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 147/165 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: 7.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 66, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 148, TOOLS_POST_TIME: 6.6s, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 170, TOOLS_QUANTIFIERELIM_TIME: 6.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.7s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 290, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 25, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 66, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME: 6.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 6.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 25, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 1.3s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 1.3s, 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: 933, DAG_COMPRESSION_RETAINED_NODES: 203, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((!(x == 0) || !(#NULL == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= x)) || ((((0 <= x && 1 <= i) && 0 <= x) && x <= 0) && ((x == x && res == unknown-#memory_int-unknown[x][x]) || 2 <= i)) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((((((((((((unknown-#memory_int-unknown[2][4] == 49 && ((((((((((0 <= #NULL && 0 <= x) && #NULL <= 0) && i <= 2147483647) && 1 <= i) && #NULL <= 0) && 0 <= x) && 0 <= #NULL) && x <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= i) && 0 <= x) && #NULL <= 0) && i <= 0) && #NULL <= 0) && 0 <= #NULL) && x <= 0))) && unknown-#memory_int-unknown[2][7] == 0) && unknown-#memory_int-unknown[2][6] == 99) && 2 == unknown-#length-unknown[1]) && 65 == unknown-#memory_int-unknown[2][1]) && 100 == unknown-#memory_int-unknown[2][3]) && \valid[x] == 1) && \valid[1] == 1) && 400 == unknown-#length-unknown[x]) && \valid[0] == 0) && unknown-#memory_int-unknown[2][5] == 46) && \valid[2] == 1) && 8 == unknown-#length-unknown[2]) && 110 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#StackHeapBarrier-unknown < x) && unknown-#memory_int-unknown[1][1] == 0) && 98 == unknown-#memory_int-unknown[2][0]) && 0 < unknown-#StackHeapBarrier-unknown) || (((((((((((0 <= #NULL && 0 <= x) && #NULL <= 0) && i <= 2147483647) && 1 <= i) && #NULL <= 0) && 0 <= x) && 0 <= #NULL) && x <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= i) && 0 <= x) && #NULL <= 0) && i <= 0) && #NULL <= 0) && 0 <= #NULL) && x <= 0)) && 1 <= i) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((1 <= i || unknown-#memory_int-unknown[x][x] == temp) && (((((((((((ret2 <= 2147483647 && i <= 0) && 0 <= x) && 0 <= i) && #NULL <= 0) && i <= 2147483647) && 0 <= ret2 + 2147483648) && 0 <= x) && 0 <= ret + 2147483648) && 0 <= #NULL) && x <= 0) || ((((((((((ret2 <= 2147483647 && 0 <= x) && #NULL <= 0) && i <= 2147483647) && 0 <= ret2 + 2147483648) && 1 <= i) && i <= 2147483647) && 0 <= x) && 0 <= ret + 2147483648) && 0 <= #NULL) && x <= 0))) && ret <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && 100 <= i) && #NULL == 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 02:13:48,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31ae3752-08f0-4d1b-8eb2-429a33de01b6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE